Hibernate is one of the most widely used ORM tool for Java applications. It's used a lot in enterprise applications for database operations. So I decided to write a post about hibernate interview questions to brush up your knowledge before the interview. Whether you are fresher or experienced, having good knowledge or Hibernate ORM tool […]
URL: https://www.progressiverobot.com/scala-interview-questions/ Before reading this post, please go through my previous post at "[Scala Basic Interview Questions and Answers](/community/tutorials/scala-interview-questions-answers)" to get some basic knowledge about Scala Language. In this post, we are going to discuss about some more Scala Interview Questions which are useful for some experienced Scala Developers. Note:- As this list has already […]
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/servlet-interview-questions-and-answers/ Servlets is a very important topic of Java EE and all of the web applications frameworks such as Spring and Struts is built on top of it. This makes servlet interview questions a hot topic in interviews. Here I am providing a list of 50 servlet interview questions with answers to help you […]
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/spring-interview-questions-and-answers/ I have posted a lot of [Spring Tutorials](/community/tutorials/spring-tutorial-spring-core-tutorial) recently. This post will help you get through Spring interview Questions explaining the core concepts in detail. Spring Framework is one of the most popular Java EE frameworks for web applications. [Dependency Injection](/community/tutorials/spring-dependency-injection) and Aspect-Oriented Programming are at the heart of the Spring framework. If […]
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/sql-interview-questions-answers/ SQL interview questions are asked in almost all interviews because database operations are very common in applications. SQL stands for Structured Query Language, which is a domain-specific programming language used for database communications and relational database management. SQL consists of standard commands for database interactions such as SELECT, INSERT, CREATE, DELETE, UPDATE, DROP […]
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 […]
URL: https://www.progressiverobot.com/struts2-interview-questions-and-answers/ Struts2 is one of the famous framework for developing web application in java. Recently I have wrote a lot of [Struts2 Tutorials](/community/tutorials/struts-2-tutorial "Struts2 Tutorial with Example Projects") and in this post, I am listing down some of the important Struts2 interview questions with answers to help you in interview. Struts2 Interview Questions [What […]
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