Java garbage collector JVM Garbage collection by Jeetendra Mandal
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The garbage collector is a program that runs on the Java Virtual Machine that automatically frees up memory from objects that are no longer being used by a Java application. It handles memory management by reclaiming the unused runtime memory and destroying objects that are no longer referenced. This makes Java memory efficient as the garbage collector removes objects from memory without applications having to manually free up space.
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Carrier Advice for a JAVA Developer How to Become a Java Programmerjeetendra mandal This document provides information on the career path for a Java developer. It discusses Java as a programming language, the responsibilities of Java developers including tasks like designing and building Java applications. It also describes the roles of senior and junior Java developers. The document emphasizes important Java concepts like OOP principles, frameworks like Spring, tools like JUnit, and skills like debugging. It explains why Java remains in high demand and skills a Java developer should focus on improving like APIs, design patterns, the JVM, and problem-solving.
How to become a Software Tester Carrier Path for Software Quality Tester
How to become a Software Tester Carrier Path for Software Quality Testerjeetendra mandal Manual testing refers to testing software manually to identify bugs, where manual testers collaborate with developers to evaluate test scripts and resolve issues. Automated testing uses scripted testing tools to validate software functionality and requirements faster than manual testing. The document discusses the skills required for software testers, including knowledge of databases, Linux commands, test management and defect tracking tools, programming languages, analytical skills, and communication skills. It also outlines typical software tester career paths and roles at different experience levels.
How to become a Software Engineer Carrier Path for Software Developer
How to become a Software Engineer Carrier Path for Software Developerjeetendra mandal Software engineers are responsible for creating different software programs that power many technologies and applications we use everyday. There are many types and roles for software engineers, including developing applications, systems, security features, and ensuring quality. Becoming a software engineer involves obtaining a relevant degree, mastering programming skills, databases, algorithms, software engineering theory, and gaining experience through projects. Experience can then be used to find jobs through websites, recruiters, freelancing, or networking in local tech communities. The field continues to evolve, with growing opportunities in areas like cloud, AI, blockchain, and cybersecurity.
Events vs Notifications
Events vs Notificationsjeetendra mandal Event is an object that describes a state change in an application or system. It is generated by some user or automated activity. Event listeners register to receive notifications of events and take appropriate actions. Notifications are messages or alerts sent by an application to notify users, either within the app or as push notifications when the app is not open. Notifications are used to encourage users to try features, alert them to non-critical issues like updates, or prompt them to enable push notifications if beneficial. Events and notifications are both mechanisms for asynchronous communication in applications and systems.
Microservice Architecture Software Architecture Microservice Design Pattern
Microservice Architecture Software Architecture Microservice Design Patternjeetendra mandal Architecture serves as a blueprint for a system, providing abstraction to manage complexity and coordination among components. It defines a structured solution meeting requirements while optimizing qualities like performance and security. Microservices are small, independent, loosely coupled services written by small teams, deployed independently using APIs. They improve build/deploy speed and scalability over monolithic architectures.
Event Driven Software Architecture Pattern
Event Driven Software Architecture Patternjeetendra mandal An event-driven architecture consists of event producers that generate event streams and event consumers that listen for events. It allows for loose coupling between components and asynchronous event handling. Key aspects include publish/subscribe messaging patterns, event processing by middleware, and real-time or near real-time information flow. Benefits include scalability, loose coupling, fault tolerance, and the ability to add new consumers easily. Challenges include guaranteed delivery, processing events in order or exactly once across multiple consumer instances. Common tools used include Apache Kafka, Apache ActiveMQ, Redis, and Apache Pulsar.
Top 5 Software Architecture Pattern Event Driven SOA Microservice Serverless ...
Top 5 Software Architecture Pattern Event Driven SOA Microservice Serverless ...jeetendra mandal Top 5 Software Architecture Pattern Event Driven Architecture SOA Architecture Microservice Architecture Serverless Architecture and Containerized Architecture.
Observability vs APM vs Monitoring Comparison
Observability vs APM vs Monitoring Comparisonjeetendra mandal APM is a tool that monitors application performance and user experience by tracking metrics like load and KPIs. It allows seeing how applications are used by real users and identifying problems that impact sales or brand experience. Observability aggregates data from logs, metrics, and traces to assess overall system health, while APM directly focuses on gauging user experience. Both ensure good user experience but in different ways - APM actively collects data related to response time, while observability passively examines various data sources. Monitoring tracks predefined metrics over time to understand system status, but observability analyzes related data to determine the root cause of issues.
Disaster Recovery vs Data Backup what is the difference
Disaster Recovery vs Data Backup what is the differencejeetendra mandal Data backup involves making copies of data to protect against accidental deletion, corruption, or issues with software upgrades. Disaster recovery refers to processes for quickly restoring access and operations after an outage by switching to redundant servers and storage. While backups protect against data loss, disaster recovery ensures business continuity through tested plans to restore full systems and infrastructure. It is crucial for companies to have both backup and disaster recovery plans in place to avoid costly downtime and lost revenue from data or system loss.
What is Spinnaker? Spinnaker tutorial
What is Spinnaker? Spinnaker tutorialjeetendra mandal Spinnaker is an open source continuous delivery platform that provides automated deployment capabilities for releasing software changes. It is designed to increase release velocity and reduce risk associated with updating applications. Spinnaker uses a microservices architecture and provides features like multicloud deployments, automated pipelines, deployment verification, and flexibility and extensibility through customization and extensions. It works by managing applications and their deployments through concepts like pipelines, stages, server groups, and deployment strategies.
Difference between Github vs Gitlab vs Bitbucket
Difference between Github vs Gitlab vs Bitbucketjeetendra mandal Git is a source control management tool that tracks files by recording who made modifications, which files changed and what the changes were, and which files were added or deleted. It provides a commit history that allows users to check modifications by commit ID and see what changes were made in each commit. GitHub, GitLab, and Bitbucket are popular hosted Git services that allow users to create remote repositories, initialize local repositories connected to the remote, give access to multiple contributors, and push and pull changes between local and remote repositories.
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Presented at: The 33rd International Conference on Program Comprehension (ICPC '25)
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- 2. The garbage collector is a program which runs on the Java Virtual Machine which gets rid of objects which are not being used by a Java application anymore. It is a form of automatic memory management. When a typical Java application is running, it is creating new objects, such as Strings and Files, but after a certain time, those objects are not used anymore.
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