Interview Questions

Scala Interview Questions and Answers — step-by-step DevOps tutorial on Progressive Robot

Scala Interview Questions and Answers

URL: https://www.progressiverobot.com/scala-interview-questions-answers/ Welcome to Scala interview questions and answers. Now-a-days, most of the Finance/Banking, Government, Telecom, Social Networking etc. companies are using Scala, Play and Akka Framework to develop their projects because these frameworks support both OOPs and FP features and also provide many advantages. Scala Interview Questions ![scala interview questions](images/scala-interview-questions-answers-section-1.png) I am going to […]

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40 Java Collections Interview Questions and Answers — step-by-step Programming tutorial on Progressive Robot

40 Java Collections Interview Questions and Answers

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 […]

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Scala Interview Questions — step-by-step DevOps tutorial on Progressive Robot

Scala Interview Questions

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 […]

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Java Exception Interview Questions and Answers — step-by-step Programming tutorial on Progressive Robot

Java Exception Interview Questions and Answers

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 […]

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50 Servlet Interview Questions and Answers — step-by-step Programming tutorial on Progressive Robot

50 Servlet Interview Questions and Answers

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 […]

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Java Heap Space vs Stack - Memory Allocation in Java — step-by-step Programming tutorial on Progressive Robot

Java Heap Space vs Stack – Memory Allocation in Java

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 […]

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Spring Interview Questions and Answers — step-by-step DevOps tutorial on Progressive Robot

Spring Interview Questions and Answers

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 […]

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Java Interview Questions — step-by-step Programming tutorial on Progressive Robot

Java Interview Questions

URL: https://www.progressiverobot.com/java-interview-questions/ — If you are preparing for a Java-based interview, it's a good idea to go through Java Interview Questions. I have written a lot of interview questions articles in Core Java, Java EE to popular frameworks. Java Interview Questions FAQs Let's go through some common questions before you read articles that focus on […]

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SQL Interview Questions and Answers — step-by-step DevOps tutorial on Progressive Robot

SQL Interview Questions and Answers

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 […]

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Java is Pass by Value, Not Pass by Reference — step-by-step Programming tutorial on Progressive Robot

Java is Pass by Value, Not Pass by Reference

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 […]

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