It’s a great design question and asked a lot in java interviews. This post provides all the differences between abstract class and interface. When should we use interface over the abstract class and vice versa? The post also explains how to use abstract class and interface to create a flexi...
This question is a great way to assess your understanding of Java's memory model and how it relates to concurrent programming. As a hiring manager, I want to see if you can explain the volatile keyword's purpose and its implications on multithreading. When you answer, I'm looking for a ...
Java 8 has been released in March 2014, so it’s one of the hot topics in java interview questions. If you answer this question clearly, it will show that you like to keep yourself up-to-date with the latest technologies. Java 8 has been one of the biggest releases after Java 5 anno...
Question 2: Do Math.random and Random.nextInt() belong to the same java packages? No. Math.random belongs to java.lang.Math, whereas Random class is present in java.util package Question 3: To generate random integers, which is better Math.random() or Random.nextInt()? Random.nextInt(...
My favorite Java interview question, this is tough, tricky but same time very useful as well. Some interviewer also ask this question as Why String is final in Java. look at this post for some points which make sense onWhy String is final or immutable in Java ...
Well, you really need to know the concept of string pool very deeply to answer this question or similar questions. 8. How does String’ssubstring()Method Works? A string in Java is, like any other programming language, a sequence of characters. This is more like a utility class to work...
20. What will happen if you call return statement or System.exit on try or catch block ? will finally block execute? This is a verypopular tricky Java questionand its tricky because many programmer think that finally block always executed. This question challenge that concept by putting return...
This question is themost importantand is most likely to be asked at every job interview level. You must be very clear on this topic., not only because it is the most asked question but also it will open up your mind to further questions related to Collection APIs. ...
What are some important features of OOPs concept in Java? Ans: Some of the important striking features of OOPs concept are as follows: Higher priority is focused on data rather than functions. Programs are divided into the number of entities known as objects. ...
Looking forward to appear in Java Interview, here are the key 100+ Java Interview Questions with Answers only for you including some of the tricky questions with answers. Table of Contents Sr.No.Question 1 What are new Java8 Features? 2 Difference between GET & POST METHODS? 3 Difference be...