Java Intro
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This document provides an overview of Java and some of its core SDK tools. It discusses key features of Java like its portability, object-oriented model, memory management and security. It also describes several common Java development tools like javac (the Java compiler), java (the Java interpreter), jar (for creating Java archives), and javadoc (for generating documentation from source code). The document emphasizes that these tools are important for developing Java applications and understanding how to use documentation.
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3) Key features of Java include being simple, architecture-neutral, object-oriented, distributed, compiled, interpreted, statically typed, multi-threaded, garbage collected, portable, high-performance, robust, secure, and extensible.
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The Nervous System
The Nervous SystemVijay A Raj The document provides an overview of the nervous system, including its basic functions, organization, and components. Key points:
1) The nervous system is a network of nerve cells that functions as the control center of the body, integrating homeostasis, movement, and other functions.
2) It has two main divisions - the central nervous system (CNS) comprising the brain and spinal cord, and the peripheral nervous system outside of the CNS.
3) Neurons are the basic functional units that conduct electrical signals to transmit information via chemical neurotransmitters at synapses.
Global Warming
Global WarmingVijay A Raj Global warming is caused primarily by human-induced increases in greenhouse gas emissions such as carbon dioxide and methane. The average global surface temperature has increased around 1°C over the past century and is projected to rise another 1-6°C by 2100 according to climate models. This warming will cause sea level rise and changes in weather patterns through feedback loops like increased water vapor and reduced ice and snow cover. There is an ongoing public debate around climate change and potential policy responses like emissions reductions and adaptation measures.
Robotic
RoboticVijay A Raj This document provides an overview of robotics, including:
1) It discusses the origins of robots and how they are now used widely in manufacturing, assembly, transport, space exploration, surgery, and more.
2) It describes the typical components of robots, including their mechanical structure, actuators, end effectors for manipulation, and various methods of locomotion such as rolling, walking, flying, swimming, and more.
3) It discusses how robots interact with humans, including through speech recognition, gestures, and interpreting facial expressions.
Determinants Of Demand
Determinants Of DemandVijay A Raj This document discusses the economic concepts of supply, demand, and market equilibrium. It provides details on:
1) How supply and demand curves model the relationship between price, quantity supplied, and quantity demanded in a competitive market, resulting in an equilibrium price and quantity.
2) The key determinants that influence supply and demand curves, including price, income, tastes, population, and prices of substitutes and complements.
3) How shifts in supply or demand curves due to changes in these determinants impact the market equilibrium price and quantity.
Gliese 581D
Gliese 581DVijay A Raj Gliese 581 d is an exoplanet orbiting the red dwarf star Gliese 581, located approximately 20 light years from Earth. With a mass nearly 8 times that of Earth, it is classified as a super-Earth. Further studies in 2009 confirmed it lies within the star's habitable zone where liquid water could exist on its surface, making it a candidate for hosting life.
General Tips To Overcome An Interview
General Tips To Overcome An InterviewVijay A Raj This document provides general tips for overcoming an interview for campus or off-campus positions. It describes an interview as a cautious climb up a mountain trail that traces one's life and career experiences. It advises preparing for interviews by remembering important career landmarks. Typical interview questions are listed and responses are suggested, such as discussing one's strengths, salary expectations, why the company should hire you, and questions you can ask the interviewer. First impressions, resume tips, and maintaining confidence are also addressed.
Transactional & Transformational Leadership
Transactional & Transformational LeadershipVijay A Raj The document discusses two leadership styles: transactional leadership, which is based on an exchange between leader and group, and transformational leadership, which focuses on inspiring change. Transactional leadership uses rewards to motivate, while transformational leadership uses inspiration, intellectual stimulation, and individual consideration. The document then introduces transcendent leadership, which emphasizes collective decision making, valuing diverse views, and service above self for the good of all.
Leader
LeaderVijay A Raj The document discusses leadership styles and theories that are applicable in the hospitality industry. It describes that hospitality work often involves low-wage, entry-level jobs with high turnover. The document outlines different leadership styles including autocratic, democratic, and laissez-faire approaches. It also discusses theories like Theory X and Y about human motivation, and situational leadership which involves assessing followers and adapting the leadership style accordingly.
LeaderShip
LeaderShipVijay A Raj This document discusses theories of leadership and how leadership can be developed. It covers trait theory, transactional versus charismatic leadership, transformational leadership, developing team leader skills, servant leadership, and developing one's own leadership potential. The key points are that leadership can be developed through traits like self-confidence and emotional intelligence, communicating a compelling vision, inspiring trust, developing team skills, focusing on serving others, and gaining broad experience.
LeaderShip
LeaderShipVijay A Raj The document discusses several aspects of leadership including traits of great leaders, leadership styles, empowering employees, and developing a vision. It provides recommendations for becoming a better leader such as learning to trust and empower others, encouraging individuals to achieve their full potential, and creating a vision to inspire and guide an organization. Effective leaders focus on customers, set high standards, and inspire others to achieve more than they thought possible.
Java Tutorial
Java TutorialVijay A Raj - Java is a platform independent programming language that is similar to C++ in syntax but similar to Smalltalk in its object-oriented approach. It provides features like automatic memory management, security, and multi-threading capabilities.
- Java code is compiled to bytecode that can run on any Java Virtual Machine (JVM). Only depending on the JVM allows Java code to run on any hardware or operating system with a JVM.
- Java supports object-oriented programming concepts like inheritance, polymorphism, and encapsulation. Classes can contain methods and instance variables to define objects.
35 Xl Tips
35 Xl TipsVijay A Raj This document provides 35 Excel tips that could save time when working with spreadsheets. Some of the tips covered include splitting windows and freezing panes to view multiple parts of a large spreadsheet simultaneously, using the hide and unhide command to simplify work by hiding unnecessary rows or columns, and moving around a spreadsheet quickly using keyboard shortcuts like Ctrl + arrow keys. The document demonstrates how to use each tip and provides brief exercises for practice.
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Java Intro
- 1. Intro to Java and the SDK Tools
- 2. Virtual Machine Operating System independence. Safe, well defined, operating environment. Portability Performance Issues
- 3. Objects, Objects, Objects In Java, everything is an Object. I lie! (primitive types are not objects) Java source code is based on classes in general: one public class defined in one file. There are many pre-defined classes too many ?!? almost everything is written in Java
- 4. OOP Development Object-Oriented Components Formalized in J2EE - Java Beans Incremental Development Unified Modeling Language (UML)
- 5. Features Dynamic Memory Management garbage collection Threads, synchronization primitives Error handling (exceptions) Network support Security
- 6. Java vs. C++ Similar syntax/control structures. No preprocessor or include files. No pointers No global variables No struct or union types. All primitive types have well defined size.
- 7. More Java vs. C++ No operator overloading. Single inheritance only there is another approach used - interfaces. Error handling is well defined (and somewhat enforced!). No memory leaks!
- 8. and more… Safety designed in to the language and VM bytecode verification array access bounds checking security manager/ security policies
- 9. Performance Issues Using a VM is slower than compiling to native instructions. JIT compilers convert Java Bytecode to machine language. Safety/Security slow things down all array accesses require bounds check Many I/O operations require security checks
- 10. The big picture
- 11. Java Strengths Simplicity (the language itself) Networking Object model Graphical User Interface (GUI) programming Large and Very Large systems. Portable libraries
- 12. SDK Tools javac : the Java compiler. Reads source code and generates bytecode. java : the Java interpreter Runs bytecode. jar : Java Archive utility javadoc : create documentation from code. jdb : Java debugger (command line). There are others…
- 13. The Java Compiler Usage: javac filename .java You can also do: javac *.java Creates filename .class (if things work) Use "-g" to compile for use with the debugger.
- 14. The Java Interpreter Usage: java classname You tell the interpreter a class to run, not a file to run! It uses the CLASSPATH to find the named class. The named class should have a method with prototype like: public static void main()
- 15. jar Like Unix tar comand. Used to create (and extract from) an archive file: collection of files. compressed. Java can find classes (bytecode) that are stored in jar files.
- 16. jar usage To extract files: jar xf filename. jar To list files: jar tf filename. jar To create and archive: jar cf filename. jar file1 file2 dir1 dir2 …
- 17. javadoc Creates documentation from properly commented Java source code. The output of javadoc includes HTML files in the same format as the Java SDK documentation. we all need to get used to this format… learning to find and understand the documentation on classes/methods is 1/2 of learning Java!
- 18. Using the tools We will look at these and other tools in more detail later… For now (HW1) we just need to be able to compile and execute a simple Java class.