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...
Published on August 4, 2022 Interview Questions Java By Pankaj Kumar Today we will go through Java Multithreading Interview Questions and Answers. We will also look into Concurrency interview questions and answers because both multithreading and concurrency go hand in hand. Thread is one of the popu...
also answers are widely available by using Google. If you don’t find answer of any particular question, you can always ask me in comments section. You can even find answers of few questions on the link provided or my earlier postTop 12 Java Thread Questions with Answers....
That’s why this question is one of the java interview questions for experienced professionals.Java offers many primitives to help with this, but it takes experience to select the right one in each particular situation. Often, a tradeoff needs to be made between efficiency on the one hand, ...
The Java VM or Java Virtual Machine resides on the RAM. During execution, using the class loader the class files are brought on the RAM. The BYTE code is verified for any security breaches.Next, the execution engine will convert the Bytecode into Native machine code. This is just in time...
is a Singleton class. Creating Singleton was tricky prior Java 4 but once Java 5 introduced Enum its very easy. see my articleHow to create thread-safe Singleton in Javafor more details on writing Singleton using enum and double checked locking which is purpose of this Java interview question...
You cannot save your own java types. Internal Storage – Store private data on the device memory. 12. What is action in Android? In Android, an action is a description of something that an intent sender desires. Syntax: Contained in: Description: It adds an action to an intent filter. ...
Another multi-threading question in Java which appear mostly on senior level interviews. Most interviewer grill on recent race condition you have faced and how did you solve it and some time they will write sample code and ask you detect race condition. See my post on Race condition in Java...
Here the main catch in the question is “one pass”. What does it mean? It means you get to traverse the list only once and there’s no coming back to a node once you’ve traversed it. But to calculate the middle element you will require the length of the entire LinkedList, right?
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 ContentsSr.No.Question 1 What are new Java8 Features? 2 Difference between GET & POST METHODS? 3 Difference betwee...