What's new in java 8
0 likes127 views
The document discusses new features in Java 8 including lambda expressions, default methods, streams, and static methods in interfaces. Lambda expressions allow for anonymous functions and method references provide shorthand syntax. Default methods enable adding new functionality to interfaces while maintaining binary compatibility. Streams support sequential and parallel aggregate operations on a sequence of elements. Static methods can now be defined in interfaces.
1 of 25
Download to read offline
Recommended
java8
java8Arik Abulafya Lambda expressions allow implementing anonymous functions more concisely. Interfaces can now contain default and static methods. Streams facilitate functional-style operations on collections of elements. Optional handles null references more gracefully. The Date/Time API replaces the previous Date and Calendar classes. Nashorn allows executing JavaScript code from Java. Various new tools like jdeps were introduced.
Java 8
Java 8Sheeban Singaram Java 8 features:
* Default Methods (Defender methods)
* Lambda expressions
* Method references
* Functional Interfaces
* Stream API (Parallel operations)
* Other new features
Java8
Java8Sunil Kumar This document provides an overview of new features in Java 8 including lambda expressions, interface improvements, and streams. Lambda expressions allow for anonymous functions and method references in Java. Functional interfaces define a single abstract method that lambda expressions can implement. Interface changes allow interfaces to define static and default methods. Streams provide a functional-style way to process collections of objects through intermediate and terminal operations like filter, map, reduce, and forEach.
LISP:Program structure in lisp
LISP:Program structure in lispDataminingTools Inc Program structure in Lisp can be summarized as follows:
1. Forms are the basic units of computation and come in various types like self-evaluating forms, symbols, lists, and special forms.
2. Variables and functions are defined using symbols and lambda expressions. Variables can be global or local while functions can be named or anonymous.
3. Control structures like conditionals and loops are implemented using special forms. Macros allow defining new syntactic constructs that are expanded before evaluation.
4. Top-level forms interact through a read-eval-print loop and can declare global variables, constants, and functions. Special forms control aspects like compilation and loading.
Java 8
Java 8vilniusjug This document summarizes key parts of Java 8 including lambda expressions, method references, default methods, streams API improvements, removal of PermGen space, and the new date/time API. It provides code examples and explanations of lambda syntax and functional interfaces. It also discusses advantages of the streams API like lazy evaluation and parallelization. Finally, it briefly outlines the motivation for removing PermGen and standardizing the date/time API in Java 8.
Session 5
Session 5Shailendra Mathur The document discusses the different storage classes in C - automatic, external, static, and register variables. It also explains pointers in C, including how to declare pointer variables, use the address & and dereference * operators, perform pointer arithmetic, and pass pointers to functions to allow the called function to modify the passed variables (pass by reference).
(Ai lisp)
(Ai lisp)Ravi Rao LISP is a programming language invented in 1958 that uses two simple data structures - atoms and lists. It heavily relies on recursion and functional programming. LISP defines all data as lists and represents programs as nested function calls, allowing for dynamic typing and easy abstraction. It introduced many concepts still used in modern languages, including conditionals, recursion, dynamic typing, garbage collection, and representing programs as mathematical expressions.
C language presentation
C language presentationbainspreet The document provides an overview of key concepts in the C programming language, including:
- Data types, variables, constants, and arrays. Arrays must be declared before use with the format data-type variable-name[size]. Two dimensional arrays are supported.
- Storage classes like automatic, external/global, static, and register that determine variable scope, lifetime, and memory location.
- Functions and different ways they can be called in C - call by value where copies of arguments are passed, and call by reference where addresses of variables are passed.
Matlab m files and scripts
Matlab m files and scriptsAmeen San The document discusses MATLAB files and functions. It describes that:
1) Functions and scripts are stored in .m files. The MATLAB workspace can be saved in .mat files for easy loading and efficient access. Plots can be saved in .fig files.
2) Scripts contain commands that run when the file is run. Functions have their own variables, accept inputs, and return outputs.
3) Comments start with % and help document code. Control flow includes conditional (if/else) and loop (for/while) statements. Functions terminate with return.
Consuming and Creating Libraries in C++
Consuming and Creating Libraries in C++Richard Thomson In this presentation, I discuss the mechanisms for consuming libraries in C++. I cover header-only libraries, static libraries and dynamic libraries.
11 ruby methods
11 ruby methodsWalker Maidana Ruby methods are used to bundle repeatable statements into a single unit. Method names should begin with a lowercase letter. Methods should be defined before calling them. Methods can accept parameters with default values. Variables can be returned from methods. The return statement is used to return values explicitly. Methods can take a variable number of parameters using *. Class methods can be accessed without instantiating an object. The alias statement creates an alias for a method or variable. The undef statement cancels a method definition.
Oct.22nd.Presentation.Final
Oct.22nd.Presentation.FinalAndrey Skripnikov This document discusses various techniques for optimizing R code performance, including profiling code to identify bottlenecks, vectorizing operations, avoiding copies, and byte code compilation. It provides examples demonstrating how to measure performance, compare alternative implementations, and apply techniques like doing less work, vectorization, and avoiding method dispatch overhead. The key message is that optimizing performance is an iterative process of measuring, testing alternatives, and applying strategies like these to eliminate bottlenecks.
Unit iii
Unit iiiSHIKHA GAUTAM c_programming, Introduction to C,computer,C intro,Type conversion in c,Unit ii_KCS201, UNIT 3, KCS201
C intro
C introSHIKHA GAUTAM The document provides information on C language basics. It discusses that C is a system programming language useful for writing system programs like compilers, drivers, etc. It is a structured language that supports functions and modular programming. C has many built-in functions and is portable, efficient, and can access hardware. Some key aspects covered include data types in C, variables, operators, conditional statements, and input/output functions. Examples of basic C programs are also included.
Function in C++
Function in C++Prof Ansari A function provides a convenient way of packaging a computational recipe, so that it can be used as often as required. A function definition consists of two parts: interface and body. The interface of a function (also called its prototype) specifies how it may be used. It consists of three entities:
The function name. This is simply a unique identifier.
The function parameters (also called its signature). This is a set of zero or more typed identifiers used for passing values to and from the function.
The function return type. This specifies the type of value the function returns. A function which returns nothing should have the return type void.
The body of a function contains the computational steps (statements) that comprise the function.
Matlab Programming Tips Part 1
Matlab Programming Tips Part 1Shameer Ahmed Koya MATLAB program are stored as script file(.m files). This type of file contains MATLAB commands, so running it is equivalent to typing all the commands—one at a time—at the Command window prompt. You can run the file by typing its name at the Command window.
Ch08
Ch08Arriz San Juan This document discusses one-dimensional and two-dimensional arrays in C. It covers array initialization, passing arrays to functions, and common errors. Key topics include declaring and initializing one-dimensional arrays, accessing array elements using indexes, initializing two-dimensional arrays in row-major order, and calculating the memory location of elements in two-dimensional arrays based on row and column indexes. Examples are provided to demonstrate computing averages and standard deviations of arrays.
Ch13
Ch13Arriz San Juan The document discusses dynamic data structures in C including linked lists, stacks, queues, and dynamically linked lists. Linked lists store structures containing a data field and a pointer to the next structure. Stacks follow LIFO order using push and pop operations, while queues follow FIFO order using enqueue and dequeue operations. Dynamically linked lists allow inserting and deleting structures anywhere in the list using operations that update internal pointers. Memory for these dynamic structures is allocated using functions like malloc() and free(). Common errors involve failure to check for memory allocation errors or correctly update pointers when adding or removing structures.
Basic of Python- Hands on Session
Basic of Python- Hands on SessionDharmesh Tank This document provides an outline and overview of a presentation on learning Python for beginners. The presentation covers what Python is, why it is useful, how to install it and common editors used. It then discusses Python variables, data types, operators, strings, lists, tuples, dictionaries, conditional statements, looping statements and real-world applications. Examples are provided throughout to demonstrate key Python concepts and how to implement various features like functions, methods and control flow. The goal is to give attendees an introduction to the Python language syntax and capabilities.
Lex (lexical analyzer)
Lex (lexical analyzer)Sami Said Lex is a tool that generates lexical analyzers (scanners) that are used to break input text streams into tokens. It allows rapid development of scanners by specifying patterns and actions in a lex source file. The lex source file contains three sections - definitions, translation rules, and user subroutines. The translation rules specify patterns and corresponding actions. Lex compiles the source file to a C program that performs the tokenization. Example lex programs are provided to tokenize input based on regular expressions and generate output.
C
CJerin John The document provides an overview of the C programming language. It discusses basic C programming concepts like data types, variables, functions, pointers, structures, file handling and more. It also includes examples of basic C programs and code snippets to illustrate various programming concepts.
Matlab Functions
Matlab FunctionsUmer Azeem This document discusses functions in MATLAB. It defines a function as a group of statements that perform a task and can accept inputs and produce outputs. Functions provide reusable code and can accept multiple input arguments and return multiple output arguments. There are built-in MATLAB functions and user-defined functions. Built-in functions include basic math, trigonometric, data analysis, and other functions. User-defined functions are created by the user and must have the same name as the file. They are defined using the function keyword and can return single or multiple outputs. Functions are called from the command window by specifying their name and valid inputs.
Lab5
Lab5Prasad MAHAJAN 1. Students are instructed to complete a lab assignment involving template functions and classes. They are to generalize an existing trapezoidal rule function to work with any user-defined function, and generalize a matrix class to work with any arithmetic type as a template parameter.
2. For the trapezoidal rule function, students are asked to add a fourth argument to pass a function object, then make the function a template to accept any function type. They must test it by defining object functions for unit circle, line, trigonometric, and bilinear functions.
3. For the matrix class, students are to make it a template class that accepts any number type by modifying the class declaration and implementation files. They
Java8
Java8Futada Takashi Java 8 introduced several new features including lambda expressions, default methods, and the Stream API. It also replaced the PermGen memory space with Metaspace to avoid OutOfMemoryErrors. Some key language updates include support for functional interfaces, lambda expressions, default interface methods, and new collection methods like forEach and filter that work with lambda expressions. The Stream API allows functional-style operations on collections like map, reduce, and filter.
Modern C++
Modern C++Richard Thomson Utah Code Camp, Spring 2016. http://utahcodecamp.com In this presentation I describe modern C++. Modern C++ assumes features introduced in the C++11/14 standard. An overview of the new features is presented and some idioms for mdoern C++ based on those features are presented.
An Introduction to MATLAB for beginners
An Introduction to MATLAB for beginnersMurshida ck This document provides an introduction to MATLAB, including:
- MATLAB is a program for numerical computation, originally designed for matrix operations. It has expanded capabilities for data analysis, signal processing, and other scientific tasks.
- The MATLAB desktop includes tools like the Command Window, Workspace, and Figure Window. Common commands are introduced for arithmetic, variables, arrays, strings and plots.
- Arrays in MATLAB can represent vectors and matrices. Commands are demonstrated for creating, manipulating, and performing operations on arrays.
Unit v
Unit vSHIKHA GAUTAM The document compares and contrasts arrays and linked lists. It states that arrays provide fast random access but fixed size, while linked lists have flexible size but slower sequential access. It also discusses different types of linked lists and their memory usage.
LISP: Input And Output
LISP: Input And OutputDataminingTools Inc The document discusses Lisp input and output functions. It describes how Lisp represents objects in printed form for input/output and the read function that accepts this printed input and constructs Lisp objects. It covers parsing of numbers, symbols, and macro characters. It also describes output functions like print, princ, and format for writing to streams, as well as input functions like read, read-line, and querying functions like y-or-n-p.
Java 8 presentation
Java 8 presentationVan Huong Lambda expressions, default methods in interfaces, and the new date/time API are among the major new features in Java 8. Lambda expressions allow for functional-style programming by treating functionality as a method argument or anonymous implementation. Default methods add new capabilities to interfaces while maintaining backwards compatibility. The date/time API improves on the old Calendar and Date APIs by providing immutable and easier to use classes like LocalDate.
Java 8 Intro - Core Features
Java 8 Intro - Core FeaturesGlobalLogic Ukraine This presentaion provides and overview of the new features of Java 8, namely default methods, functional interfaces, lambdas, method references, streams and Optional vs NullPointerException.
This presentation by Arkadii Tetelman (Lead Software Engineer, GlobalLogic) was delivered at Java.io 3.0 conference in Kharkiv on March 22, 2016.
More Related Content
What's hot (20)
Matlab m files and scripts
Matlab m files and scriptsAmeen San The document discusses MATLAB files and functions. It describes that:
1) Functions and scripts are stored in .m files. The MATLAB workspace can be saved in .mat files for easy loading and efficient access. Plots can be saved in .fig files.
2) Scripts contain commands that run when the file is run. Functions have their own variables, accept inputs, and return outputs.
3) Comments start with % and help document code. Control flow includes conditional (if/else) and loop (for/while) statements. Functions terminate with return.
Consuming and Creating Libraries in C++
Consuming and Creating Libraries in C++Richard Thomson In this presentation, I discuss the mechanisms for consuming libraries in C++. I cover header-only libraries, static libraries and dynamic libraries.
11 ruby methods
11 ruby methodsWalker Maidana Ruby methods are used to bundle repeatable statements into a single unit. Method names should begin with a lowercase letter. Methods should be defined before calling them. Methods can accept parameters with default values. Variables can be returned from methods. The return statement is used to return values explicitly. Methods can take a variable number of parameters using *. Class methods can be accessed without instantiating an object. The alias statement creates an alias for a method or variable. The undef statement cancels a method definition.
Oct.22nd.Presentation.Final
Oct.22nd.Presentation.FinalAndrey Skripnikov This document discusses various techniques for optimizing R code performance, including profiling code to identify bottlenecks, vectorizing operations, avoiding copies, and byte code compilation. It provides examples demonstrating how to measure performance, compare alternative implementations, and apply techniques like doing less work, vectorization, and avoiding method dispatch overhead. The key message is that optimizing performance is an iterative process of measuring, testing alternatives, and applying strategies like these to eliminate bottlenecks.
Unit iii
Unit iiiSHIKHA GAUTAM c_programming, Introduction to C,computer,C intro,Type conversion in c,Unit ii_KCS201, UNIT 3, KCS201
C intro
C introSHIKHA GAUTAM The document provides information on C language basics. It discusses that C is a system programming language useful for writing system programs like compilers, drivers, etc. It is a structured language that supports functions and modular programming. C has many built-in functions and is portable, efficient, and can access hardware. Some key aspects covered include data types in C, variables, operators, conditional statements, and input/output functions. Examples of basic C programs are also included.
Function in C++
Function in C++Prof Ansari A function provides a convenient way of packaging a computational recipe, so that it can be used as often as required. A function definition consists of two parts: interface and body. The interface of a function (also called its prototype) specifies how it may be used. It consists of three entities:
The function name. This is simply a unique identifier.
The function parameters (also called its signature). This is a set of zero or more typed identifiers used for passing values to and from the function.
The function return type. This specifies the type of value the function returns. A function which returns nothing should have the return type void.
The body of a function contains the computational steps (statements) that comprise the function.
Matlab Programming Tips Part 1
Matlab Programming Tips Part 1Shameer Ahmed Koya MATLAB program are stored as script file(.m files). This type of file contains MATLAB commands, so running it is equivalent to typing all the commands—one at a time—at the Command window prompt. You can run the file by typing its name at the Command window.
Ch08
Ch08Arriz San Juan This document discusses one-dimensional and two-dimensional arrays in C. It covers array initialization, passing arrays to functions, and common errors. Key topics include declaring and initializing one-dimensional arrays, accessing array elements using indexes, initializing two-dimensional arrays in row-major order, and calculating the memory location of elements in two-dimensional arrays based on row and column indexes. Examples are provided to demonstrate computing averages and standard deviations of arrays.
Ch13
Ch13Arriz San Juan The document discusses dynamic data structures in C including linked lists, stacks, queues, and dynamically linked lists. Linked lists store structures containing a data field and a pointer to the next structure. Stacks follow LIFO order using push and pop operations, while queues follow FIFO order using enqueue and dequeue operations. Dynamically linked lists allow inserting and deleting structures anywhere in the list using operations that update internal pointers. Memory for these dynamic structures is allocated using functions like malloc() and free(). Common errors involve failure to check for memory allocation errors or correctly update pointers when adding or removing structures.
Basic of Python- Hands on Session
Basic of Python- Hands on SessionDharmesh Tank This document provides an outline and overview of a presentation on learning Python for beginners. The presentation covers what Python is, why it is useful, how to install it and common editors used. It then discusses Python variables, data types, operators, strings, lists, tuples, dictionaries, conditional statements, looping statements and real-world applications. Examples are provided throughout to demonstrate key Python concepts and how to implement various features like functions, methods and control flow. The goal is to give attendees an introduction to the Python language syntax and capabilities.
Lex (lexical analyzer)
Lex (lexical analyzer)Sami Said Lex is a tool that generates lexical analyzers (scanners) that are used to break input text streams into tokens. It allows rapid development of scanners by specifying patterns and actions in a lex source file. The lex source file contains three sections - definitions, translation rules, and user subroutines. The translation rules specify patterns and corresponding actions. Lex compiles the source file to a C program that performs the tokenization. Example lex programs are provided to tokenize input based on regular expressions and generate output.
C
CJerin John The document provides an overview of the C programming language. It discusses basic C programming concepts like data types, variables, functions, pointers, structures, file handling and more. It also includes examples of basic C programs and code snippets to illustrate various programming concepts.
Matlab Functions
Matlab FunctionsUmer Azeem This document discusses functions in MATLAB. It defines a function as a group of statements that perform a task and can accept inputs and produce outputs. Functions provide reusable code and can accept multiple input arguments and return multiple output arguments. There are built-in MATLAB functions and user-defined functions. Built-in functions include basic math, trigonometric, data analysis, and other functions. User-defined functions are created by the user and must have the same name as the file. They are defined using the function keyword and can return single or multiple outputs. Functions are called from the command window by specifying their name and valid inputs.
Lab5
Lab5Prasad MAHAJAN 1. Students are instructed to complete a lab assignment involving template functions and classes. They are to generalize an existing trapezoidal rule function to work with any user-defined function, and generalize a matrix class to work with any arithmetic type as a template parameter.
2. For the trapezoidal rule function, students are asked to add a fourth argument to pass a function object, then make the function a template to accept any function type. They must test it by defining object functions for unit circle, line, trigonometric, and bilinear functions.
3. For the matrix class, students are to make it a template class that accepts any number type by modifying the class declaration and implementation files. They
Java8
Java8Futada Takashi Java 8 introduced several new features including lambda expressions, default methods, and the Stream API. It also replaced the PermGen memory space with Metaspace to avoid OutOfMemoryErrors. Some key language updates include support for functional interfaces, lambda expressions, default interface methods, and new collection methods like forEach and filter that work with lambda expressions. The Stream API allows functional-style operations on collections like map, reduce, and filter.
Modern C++
Modern C++Richard Thomson Utah Code Camp, Spring 2016. http://utahcodecamp.com In this presentation I describe modern C++. Modern C++ assumes features introduced in the C++11/14 standard. An overview of the new features is presented and some idioms for mdoern C++ based on those features are presented.
An Introduction to MATLAB for beginners
An Introduction to MATLAB for beginnersMurshida ck This document provides an introduction to MATLAB, including:
- MATLAB is a program for numerical computation, originally designed for matrix operations. It has expanded capabilities for data analysis, signal processing, and other scientific tasks.
- The MATLAB desktop includes tools like the Command Window, Workspace, and Figure Window. Common commands are introduced for arithmetic, variables, arrays, strings and plots.
- Arrays in MATLAB can represent vectors and matrices. Commands are demonstrated for creating, manipulating, and performing operations on arrays.
Unit v
Unit vSHIKHA GAUTAM The document compares and contrasts arrays and linked lists. It states that arrays provide fast random access but fixed size, while linked lists have flexible size but slower sequential access. It also discusses different types of linked lists and their memory usage.
LISP: Input And Output
LISP: Input And OutputDataminingTools Inc The document discusses Lisp input and output functions. It describes how Lisp represents objects in printed form for input/output and the read function that accepts this printed input and constructs Lisp objects. It covers parsing of numbers, symbols, and macro characters. It also describes output functions like print, princ, and format for writing to streams, as well as input functions like read, read-line, and querying functions like y-or-n-p.
Similar to What's new in java 8 (20)
Java 8 presentation
Java 8 presentationVan Huong Lambda expressions, default methods in interfaces, and the new date/time API are among the major new features in Java 8. Lambda expressions allow for functional-style programming by treating functionality as a method argument or anonymous implementation. Default methods add new capabilities to interfaces while maintaining backwards compatibility. The date/time API improves on the old Calendar and Date APIs by providing immutable and easier to use classes like LocalDate.
Java 8 Intro - Core Features
Java 8 Intro - Core FeaturesGlobalLogic Ukraine This presentaion provides and overview of the new features of Java 8, namely default methods, functional interfaces, lambdas, method references, streams and Optional vs NullPointerException.
This presentation by Arkadii Tetelman (Lead Software Engineer, GlobalLogic) was delivered at Java.io 3.0 conference in Kharkiv on March 22, 2016.
Java 8 New features
Java 8 New featuresSon Nguyen Java 8 introduced several new features to the language including lambda expressions, default methods in interfaces, and static methods in interfaces. It also improved existing areas such as collections, date/time handling, concurrency, and I/O. Significant under-the-hood changes included replacing PermGen with Metaspace for class metadata and enabling AES encryption on newer CPUs.
Introduction to Java 8
Introduction to Java 8Knoldus Inc. Introduction to functional structures in Java 8 Like Lambda expressions, Default methods, Method references, Stream API etc.
New features in jdk8 iti
New features in jdk8 itiAhmed mar3y This document discusses new features in JDK 8 including lambda expressions, method references, default methods in interfaces, date and time API improvements, Nashorn JavaScript engine, parameter names in reflection, and annotation improvements. It also briefly mentions JEPs and upcoming features for JDK 9 such as modularity. The presenter provides code examples and explanations for many of the new JDK 8 language and API features.
java150929145120-lva1-app6892 (2).pptx
java150929145120-lva1-app6892 (2).pptxBruceLee275640 The document provides an overview of new features in Java 8 including lambda expressions, functional interfaces, default and static interface methods, method references, stream API, and date/time API. Lambda expressions allow for anonymous functions and functional interfaces provide functional signatures. Default and static interface methods allow interfaces to define implementations. Method references provide shorthand syntax for lambda expressions. The stream API supports functional-style processing of collections through intermediate and terminal operations. The new date/time API replaces the Calendar class with more easily used and immutable classes like LocalDate.
New Features in JDK 8
New Features in JDK 8Martin Toshev Presentation on the new features introduced in JDK 8, presented on the 26.02.2013 in Sofia University in front of students and members of the Bulgarian java user group.
Java8: what's new and what's hot
Java8: what's new and what's hotSergii Maliarov Java 8 was released in 2014 and introduced several new features including lambda expressions, functional interfaces, method references, and default methods in interfaces. It also included a new Stream API for functional-style data processing, a date/time API, and Project Nashorn for embedding JavaScript in Java applications. Future versions like Java 9 will focus on modularity, new APIs, and further improvements.
Colloquium Report
Colloquium ReportMohammad Faizan Java 8 introduced many new features including lambda expressions for functional programming, default methods and static methods in interfaces, method references, repeating annotations, improved type inference, the Optional class, streams API for functional-style collections processing, and Base64 encoding support in the standard library. It was a major update to the Java programming language and development kit.
Functional programming in java 8 by harmeet singh
Functional programming in java 8 by harmeet singhHarmeet Singh(Taara) Cover Basic concept for Functional Programming in Java. Define new functional interfaces, lambda expressions, how to translate lambda expression, JVM deal with new byte code etc. This is not the perfect slides for functional programming, but trying cover simple basic functional programming.
Major Java 8 features
Major Java 8 featuresSanjoy Kumar Roy Java 8 is coming soon. In this presentation I have outlined the major Java 8 features. You get information about interface improvements, functional interfaces, method references, lambdas, java.util.function, java.util.stream
Java 8 Workshop
Java 8 WorkshopMario Fusco The document discusses the introduction and advantages of lambda expressions and functional programming in Java 8. Some key points include:
- Lambda expressions allow passing behaviors as arguments to methods, simplifying code by removing bulky anonymous class syntax. This enables more powerful and expressive APIs.
- Streams provide a way to process collections of data in a declarative way, leveraging laziness to improve efficiency. Operations can be pipelined for fluent processing.
- Functional programming with immutable data and avoidance of side effects makes code more modular and easier to reason about, enabling optimizations like parallelism. While not natively supported, Java 8 features like lambda expressions facilitate a more functional approach.
Java 8 features
Java 8 featuresNexThoughts Technologies Java is Object Oriented Programming. Java 8 is the latest version of the Java which is used by many companies for the development in many areas. Mobile, Web, Standalone applications.
JDK8 Lambdas and Streams: Changing The Way You Think When Developing Java
JDK8 Lambdas and Streams: Changing The Way You Think When Developing JavaSimon Ritter The document discusses Java 8 lambdas and streams. It introduces lambda expressions as anonymous functions that can represent behavior parameterization. Lambda expressions allow simplified syntax compared to anonymous inner classes. Streams represent sequential, parallel, and bulk data processing and can be constructed from collections, arrays, or generated. Stream pipelines consist of sources, intermediate operations, and terminal operations to produce results or side effects. The Optional class helps eliminate NullPointerExceptions by wrapping nullable values.
Java8.part2
Java8.part2Ivan Ivanov This document summarizes the new features in JDK 8, including lambda expressions and method references that allow for functional programming in Java, stream API enhancements for aggregate operations on collections and arrays, annotations on Java types for additional type checking and metadata, preserving method parameter names in bytecode, improvements to BigInteger, StringJoiner and Base64 classes, and additional concurrency, security, and JavaScript engine enhancements.
Java gets a closure
Java gets a closureTomasz Kowalczewski Presentation from Krakow Java Developers Day 2011 about future of Java - closures, defender methods etc.
Java8
Java8Felipe Mamud Lambda expressions allow implementing functional interfaces using anonymous functions. Method references provide a shorthand syntax for referring to existing methods as lambda expressions. The Stream API allows functional-style operations on streams of values, including intermediate and terminal operations. The new Date/Time API provides a safer and more comprehensive replacement for the previous date/time classes in Java.
Automatic Migration of Legacy Java Method Implementations to Interfaces
Automatic Migration of Legacy Java Method Implementations to InterfacesRaffi Khatchadourian Java 8 is one of the largest upgrades to the popular language and framework in over a decade. In this talk, I will first overview several new, key features of Java 8 that can help make programs easier to read, write, and maintain, especially in regards to collections. These features include Lambda Expressions, the Stream API, and enhanced interfaces, many of which help bridge the gap between functional and imperative programming paradigms and allow for succinct concurrency implementations. Next, I will discuss several open issues related to automatically migrating (refactoring) legacy Java software to use such features correctly, efficiently, and as completely as possible. Solving these problems will help developers to maximally understand and adopt these new features thus improving their software.
Lambdas in Java 8
Lambdas in Java 8Tobias Coetzee This document introduces lambda expressions in Java 8. It provides background on why lambda expressions were added to Java, including to allow for more functional programming and parallel processing. It covers the syntax of lambda expressions, when they should and should not be used, functional interfaces, method and constructor references, referencing external variables, debugging lambda expressions, and new lambda methods added in Java 8. The document also advertises exercises for the reader to complete to practice using lambda expressions.
Recently uploaded (20)
#StandardsGoals for 2025: Standards & certification roundup - Tech Forum 2025
#StandardsGoals for 2025: Standards & certification roundup - Tech Forum 2025BookNet Canada Book industry standards are evolving rapidly. In the first part of this session, we’ll share an overview of key developments from 2024 and the early months of 2025. Then, BookNet’s resident standards expert, Tom Richardson, and CEO, Lauren Stewart, have a forward-looking conversation about what’s next.
Link to recording, transcript, and accompanying resource: https://bnctechforum.ca/sessions/standardsgoals-for-2025-standards-certification-roundup/
Presented by BookNet Canada on May 6, 2025 with support from the Department of Canadian Heritage.
Technology Trends in 2025: AI and Big Data Analytics
Technology Trends in 2025: AI and Big Data AnalyticsInData Labs At InData Labs, we have been keeping an ear to the ground, looking out for AI-enabled digital transformation trends coming our way in 2025. Our report will provide a look into the technology landscape of the future, including:
-Artificial Intelligence Market Overview
-Strategies for AI Adoption in 2025
-Anticipated drivers of AI adoption and transformative technologies
-Benefits of AI and Big data for your business
-Tips on how to prepare your business for innovation
-AI and data privacy: Strategies for securing data privacy in AI models, etc.
Download your free copy nowand implement the key findings to improve your business.
AI EngineHost Review: Revolutionary USA Datacenter-Based Hosting with NVIDIA ...
AI EngineHost Review: Revolutionary USA Datacenter-Based Hosting with NVIDIA ...SOFTTECHHUB I started my online journey with several hosting services before stumbling upon Ai EngineHost. At first, the idea of paying one fee and getting lifetime access seemed too good to pass up. The platform is built on reliable US-based servers, ensuring your projects run at high speeds and remain safe. Let me take you step by step through its benefits and features as I explain why this hosting solution is a perfect fit for digital entrepreneurs.
Manifest Pre-Seed Update | A Humanoid OEM Deeptech In France
Manifest Pre-Seed Update | A Humanoid OEM Deeptech In Francechb3 The latest updates on Manifest's pre-seed stage progress.
Transcript: #StandardsGoals for 2025: Standards & certification roundup - Tec...
Transcript: #StandardsGoals for 2025: Standards & certification roundup - Tec...BookNet Canada Book industry standards are evolving rapidly. In the first part of this session, we’ll share an overview of key developments from 2024 and the early months of 2025. Then, BookNet’s resident standards expert, Tom Richardson, and CEO, Lauren Stewart, have a forward-looking conversation about what’s next.
Link to recording, presentation slides, and accompanying resource: https://bnctechforum.ca/sessions/standardsgoals-for-2025-standards-certification-roundup/
Presented by BookNet Canada on May 6, 2025 with support from the Department of Canadian Heritage.
HCL Nomad Web – Best Practices and Managing Multiuser Environments
HCL Nomad Web – Best Practices and Managing Multiuser Environmentspanagenda Webinar Recording: https://www.panagenda.com/webinars/hcl-nomad-web-best-practices-and-managing-multiuser-environments/
HCL Nomad Web is heralded as the next generation of the HCL Notes client, offering numerous advantages such as eliminating the need for packaging, distribution, and installation. Nomad Web client upgrades will be installed “automatically” in the background. This significantly reduces the administrative footprint compared to traditional HCL Notes clients. However, troubleshooting issues in Nomad Web present unique challenges compared to the Notes client.
Join Christoph and Marc as they demonstrate how to simplify the troubleshooting process in HCL Nomad Web, ensuring a smoother and more efficient user experience.
In this webinar, we will explore effective strategies for diagnosing and resolving common problems in HCL Nomad Web, including
- Accessing the console
- Locating and interpreting log files
- Accessing the data folder within the browser’s cache (using OPFS)
- Understand the difference between single- and multi-user scenarios
- Utilizing Client Clocking
Increasing Retail Store Efficiency How can Planograms Save Time and Money.pptx
Increasing Retail Store Efficiency How can Planograms Save Time and Money.pptxAnoop Ashok In today's fast-paced retail environment, efficiency is key. Every minute counts, and every penny matters. One tool that can significantly boost your store's efficiency is a well-executed planogram. These visual merchandising blueprints not only enhance store layouts but also save time and money in the process.
AI Changes Everything – Talk at Cardiff Metropolitan University, 29th April 2...
AI Changes Everything – Talk at Cardiff Metropolitan University, 29th April 2...Alan Dix Talk at the final event of Data Fusion Dynamics: A Collaborative UK-Saudi Initiative in Cybersecurity and Artificial Intelligence funded by the British Council UK-Saudi Challenge Fund 2024, Cardiff Metropolitan University, 29th April 2025
https://alandix.com/academic/talks/CMet2025-AI-Changes-Everything/
Is AI just another technology, or does it fundamentally change the way we live and think?
Every technology has a direct impact with micro-ethical consequences, some good, some bad. However more profound are the ways in which some technologies reshape the very fabric of society with macro-ethical impacts. The invention of the stirrup revolutionised mounted combat, but as a side effect gave rise to the feudal system, which still shapes politics today. The internal combustion engine offers personal freedom and creates pollution, but has also transformed the nature of urban planning and international trade. When we look at AI the micro-ethical issues, such as bias, are most obvious, but the macro-ethical challenges may be greater.
At a micro-ethical level AI has the potential to deepen social, ethnic and gender bias, issues I have warned about since the early 1990s! It is also being used increasingly on the battlefield. However, it also offers amazing opportunities in health and educations, as the recent Nobel prizes for the developers of AlphaFold illustrate. More radically, the need to encode ethics acts as a mirror to surface essential ethical problems and conflicts.
At the macro-ethical level, by the early 2000s digital technology had already begun to undermine sovereignty (e.g. gambling), market economics (through network effects and emergent monopolies), and the very meaning of money. Modern AI is the child of big data, big computation and ultimately big business, intensifying the inherent tendency of digital technology to concentrate power. AI is already unravelling the fundamentals of the social, political and economic world around us, but this is a world that needs radical reimagining to overcome the global environmental and human challenges that confront us. Our challenge is whether to let the threads fall as they may, or to use them to weave a better future.
AI and Data Privacy in 2025: Global Trends
AI and Data Privacy in 2025: Global TrendsInData Labs In this infographic, we explore how businesses can implement effective governance frameworks to address AI data privacy. Understanding it is crucial for developing effective strategies that ensure compliance, safeguard customer trust, and leverage AI responsibly. Equip yourself with insights that can drive informed decision-making and position your organization for success in the future of data privacy.
This infographic contains:
-AI and data privacy: Key findings
-Statistics on AI data privacy in the today’s world
-Tips on how to overcome data privacy challenges
-Benefits of AI data security investments.
Keep up-to-date on how AI is reshaping privacy standards and what this entails for both individuals and organizations.
Enhancing ICU Intelligence: How Our Functional Testing Enabled a Healthcare I...
Enhancing ICU Intelligence: How Our Functional Testing Enabled a Healthcare I...Impelsys Inc. Impelsys provided a robust testing solution, leveraging a risk-based and requirement-mapped approach to validate ICU Connect and CritiXpert. A well-defined test suite was developed to assess data communication, clinical data collection, transformation, and visualization across integrated devices.
Quantum Computing Quick Research Guide by Arthur Morgan
Quantum Computing Quick Research Guide by Arthur MorganArthur Morgan This is a Quick Research Guide (QRG).
QRGs include the following:
- A brief, high-level overview of the QRG topic.
- A milestone timeline for the QRG topic.
- Links to various free online resource materials to provide a deeper dive into the QRG topic.
- Conclusion and a recommendation for at least two books available in the SJPL system on the QRG topic.
QRGs planned for the series:
- Artificial Intelligence QRG
- Quantum Computing QRG
- Big Data Analytics QRG
- Spacecraft Guidance, Navigation & Control QRG (coming 2026)
- UK Home Computing & The Birth of ARM QRG (coming 2027)
Any questions or comments?
- Please contact Arthur Morgan at [email protected].
100% human made.
How analogue intelligence complements AI
How analogue intelligence complements AIPaul Rowe
Artificial Intelligence is providing benefits in many areas of work within the heritage sector, from image analysis, to ideas generation, and new research tools. However, it is more critical than ever for people, with analogue intelligence, to ensure the integrity and ethical use of AI. Including real people can improve the use of AI by identifying potential biases, cross-checking results, refining workflows, and providing contextual relevance to AI-driven results.
News about the impact of AI often paints a rosy picture. In practice, there are many potential pitfalls. This presentation discusses these issues and looks at the role of analogue intelligence and analogue interfaces in providing the best results to our audiences. How do we deal with factually incorrect results? How do we get content generated that better reflects the diversity of our communities? What roles are there for physical, in-person experiences in the digital world?
Cyber Awareness overview for 2025 month of security
Cyber Awareness overview for 2025 month of securityriccardosl1 Cyber awareness training educates employees on risk associated with internet and malicious emails
Massive Power Outage Hits Spain, Portugal, and France: Causes, Impact, and On...
Massive Power Outage Hits Spain, Portugal, and France: Causes, Impact, and On...Aqusag Technologies In late April 2025, a significant portion of Europe, particularly Spain, Portugal, and parts of southern France, experienced widespread, rolling power outages that continue to affect millions of residents, businesses, and infrastructure systems.
What is Model Context Protocol(MCP) - The new technology for communication bw...
What is Model Context Protocol(MCP) - The new technology for communication bw...Vishnu Singh Chundawat The MCP (Model Context Protocol) is a framework designed to manage context and interaction within complex systems. This SlideShare presentation will provide a detailed overview of the MCP Model, its applications, and how it plays a crucial role in improving communication and decision-making in distributed systems. We will explore the key concepts behind the protocol, including the importance of context, data management, and how this model enhances system adaptability and responsiveness. Ideal for software developers, system architects, and IT professionals, this presentation will offer valuable insights into how the MCP Model can streamline workflows, improve efficiency, and create more intuitive systems for a wide range of use cases.
Build Your Own Copilot & Agents For Devs
Build Your Own Copilot & Agents For DevsBrian McKeiver May 2nd, 2025 talk at StirTrek 2025 Conference.
Special Meetup Edition - TDX Bengaluru Meetup #52.pptx
Special Meetup Edition - TDX Bengaluru Meetup #52.pptxshyamraj55 We’re bringing the TDX energy to our community with 2 power-packed sessions:
🛠️ Workshop: MuleSoft for Agentforce
Explore the new version of our hands-on workshop featuring the latest Topic Center and API Catalog updates.
📄 Talk: Power Up Document Processing
Dive into smart automation with MuleSoft IDP, NLP, and Einstein AI for intelligent document workflows.
Rusty Waters: Elevating Lakehouses Beyond Spark
Rusty Waters: Elevating Lakehouses Beyond Sparkcarlyakerly1 Spark is a powerhouse for large datasets, but when it comes to smaller data workloads, its overhead can sometimes slow things down. What if you could achieve high performance and efficiency without the need for Spark?
At S&P Global Commodity Insights, having a complete view of global energy and commodities markets enables customers to make data-driven decisions with confidence and create long-term, sustainable value. 🌍
Explore delta-rs + CDC and how these open-source innovations power lightweight, high-performance data applications beyond Spark! 🚀
What is Model Context Protocol(MCP) - The new technology for communication bw...
What is Model Context Protocol(MCP) - The new technology for communication bw...Vishnu Singh Chundawat
What's new in java 8
- 1. What’s New in Java 8 Lambda, Default Methods, and Streams
- 2. What’s New in Java 8 ● Lambda Expression ● Default Methods ● Streams ● Optional ● Nashorn ● New Date and Time API ● No More PermGen
- 3. What’s New in Java 8 ● Lambda Expression ● Default Methods ● Streams ● Optional ● Nashorn ● New Date and Time API ● No More PermGen
- 4. Java 9 has been scheduled for general availability in 2017
- 5. Lambda Expression and Method Reference
- 6. Lambda Expression A lambda expression is like syntactic sugar for an anonymous class with one method
- 7. Lambda Expression - Syntax () -> body parameter -> body (parameters) -> body
- 8. Lambda Expression - Syntax Example () -> { System.out.println(“Hello”); } (int i) -> System.out.println(i) (double d1, double d2) -> Double.compare(d1, d2)
- 9. Lambda Expression - Method References A method references is the shorthand syntax for a lambda expression that executes just one method
- 10. Lambda Expression - Method References Sometimes lambda expression is just a call to some method list.forEach(s -> System.out.println(s));
- 11. Lambda Expression - Method References You can turn that lambda expression into method reference list.forEach(System.out::println);
- 12. Lambda Expression - Method References Consumer<String> consumer = (s) -> { System.out.println(s) }; Consumer<String> consumer = System.out::println;
- 13. Default Methods
- 14. Default Methods Default methods enable you to add new functionality to the interfaces of your libraries and ensure binary compatibility with code written for older versions of those interfaces.
- 15. Default Methods - Example public interface Iterable<T> { Iterator<T> iterator(); default void forEach(Consumer<? super T> action) { Objects.requireNonNull(action); for (T t : this) { action.accept(t); } } default Spliterator<T> spliterator() { ... } }
- 16. Static Methods You can define static methods in interfaces!
- 17. Static Methods - Example public interface Vertx extends Measured { static Vertx vertx() { return factory.vertx(); } ... VertxFactory factory = ServiceHelper.loadFactory(VertxFactory.class); }
- 18. Static Methods - Example Vertx vertx = Vertx.vertx();
- 19. Static Methods - Example Vertx vertx = Vertx.vertx();
- 20. Streams
- 21. Streams A sequence of elements supporting sequential and parallel aggregate operations.
- 22. Streams - Example int sum = widgets.stream() .filter(w -> w.getColor() == RED) .mapToInt(w -> w.getWeight()) .sum();
- 23. Streams - Example int sum = widgets.parallelStream() .filter(w -> w.getColor() == RED) .mapToInt(w -> w.getWeight()) .sum();
- 24. ?
- 25. Thank You