Interview Questions

URL: https://www.progressiverobot.com/java-collections-interview-questions-and-answers/ [Java Collections Framework](/community/tutorials/collections-in-java-tutorial) is one of the core APIs of java programming language. It's one of the important topics for java interview questions. Here I am listing some important java collections interview questions and answers to help you in the interview. This is directly coming from my 14+ years of experience in Java […]

URL: https://www.progressiverobot.com/java-exception-interview-questions-and-answers/ Java provides a robust and object-oriented approach to handle exception scenarios known as Java Exception Handling. Sometime back I wrote a long post on [Exception Handling in Java](/community/tutorials/exception-handling-in-java) and today I am listing some important Java Exceptions Questions with Answers to help you in interviews. [What is an Exception in Java?](#java-exception) [What are […]

URL: https://www.progressiverobot.com/java-heap-space-vs-stack-memory/ Sometime back I wrote a couple of posts about [Java Garbage Collection](/community/tutorials/java-jvm-memory-model-memory-management-in-java) and [Java is Pass by Value](/community/tutorials/java-is-pass-by-value-and-not-pass-by-reference "Java is Pass by Value and Not Pass by Reference"). After that I got a lot of emails to explain about Java Heap Space, Java Stack Memory, Memory Allocation in Java and what are the […]

URL: https://www.progressiverobot.com/java-is-pass-by-value-and-not-pass-by-reference/ Introduction Many Java programmers question whether Java is _pass by value_ or _pass by reference_. This article summarizes why Java is always pass by value. First, what does pass by value and pass by reference mean? Pass by value: The method parameter values are copied to another variable and then the copied object […]