190 Tutorials Available in interview

Log4J Vulnerability (Log4Shell) Explained - for Java developers

Dec 20, 2021

java interview

What are WebSockets and How is it different from HTTP

Dec 19, 2021

java interview

Is Oracle JDK Free again - for Java developers

Dec 19, 2021

java interview

What is Web 3.0 Blockchain, Its building blocks, and Evolution of the Internet

Dec 17, 2021

java interview

How to fetch top 10 trending hashtags from Twitter in India using twitter4j

Dec 16, 2021

java interview

Difference between Map and Flat Map

Dec 8, 2021

java interview

How to do system design for a Movie Ticket Booking System like bookmyshow.com,fandango.com

Nov 1, 2021

java interview

The Four Pillars of Object Oriented Programming

Oct 30, 2021

java interview python

What is Race Condition In MultiThreading Java

Oct 13, 2021

java interview

What is Synchronized in Java MultiThreading

Oct 12, 2021

java interview

How to print Thread numbers in MultiThreading Java

Oct 11, 2021

java interview

What is join method used for in MultiThreading Java

Oct 10, 2021

java interview

What is isAlive method used for in MultiThreading Java

Oct 9, 2021

java interview

How to create and run multiple threads using for loop

Oct 8, 2021

java interview

What is MultiThreading and How to create a thread in Java

Oct 7, 2021

java interview

How to undo the most recent local commits in Git

Oct 6, 2021

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What are the system design Specifications and Features of Cache

Oct 3, 2021

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What is Cache and its benefits

Oct 2, 2021

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What is Distributed Cache

Oct 1, 2021

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Simple code Naming things and Naming Conventions

Sep 21, 2021

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Git cheatsheet that all coders need to know, Ever accidentally deleted files or necessary code? Or do you wish to look back at an older version of your code?

Sep 20, 2021

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8 Must-Have Git Commands

Sep 18, 2021

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What’s So Great About Java? Here Are Three Things!

Sep 18, 2021

java interview

How to calculate Java Objects, Arrays, Primitives, and Complex Classes. Checking calculated size correctness using JProfiler.

Sep 17, 2021

java interview

How to Convert DOCX to HTML in Java

Sep 16, 2021

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How to remove substring from String in Java

Sep 15, 2021

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Java virtual Machine(JVM) and its architecture

Sep 14, 2021

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CI/CD Implementation 5 Common Mistakes and How to Avoid Them

Sep 13, 2021

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Gang of Four design patterns, including class diagrams, explanations, usage info, and real world examples.

Sep 10, 2021

java interview

Overview of key aspects of the Java language and references on the core library, commonly used tools, and Java 8 features.

Sep 9, 2021

java interview

GraphQL vs REST, How To Choose One Over The Other

Sep 7, 2021

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The Performance Impact of java.lang.System.getProperty()

Aug 26, 2021

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Can You Override Static Method in Java

Aug 25, 2021

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Does Java Support Pass by Value or Pass by Reference

Aug 24, 2021

java interview

Difference between Factory and Abstract Factory Design Pattern in Java

Aug 23, 2021

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Why Java does not support Operator overloading

Aug 21, 2021

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Polymorphism, Overloading, and Overriding in Java and Object Oriented Programming

Aug 20, 2021

java interview

What is Encapsulation in Java and OOP with Example

Aug 19, 2021

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What is Inheritance in Java with example - Object Oriented Programming

Aug 18, 2021

java interview

What is Object in Java and Object Oriented Programming? Example Tutorial

Aug 17, 2021

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Difference between Inheritance and Composition in Java and Object Oriented Programming

Aug 16, 2021

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Recursion in Java with an Example

Aug 15, 2021

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Java Exception Design, what is a Java exception, and how to use Java Exceptions

Aug 13, 2021

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OOPs Concepts in Java with Basic Examples

Aug 9, 2021

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Low Code and No-Code Considerations

Aug 9, 2021

springboot interview

Ten Things About Java 17 and Ten features to help justify a move from Java 8 to Java 17

Aug 7, 2021

java interview

Basic Annotations in Spring Boot

Aug 6, 2021

springboot interview

Object-oriented Programming vs. Functional Programming Which Is Better?

Aug 5, 2021

java interview

How to make POST and PATCH requests idempotent

Aug 5, 2021

springboot interview

What are the Java Best Practices for High performance Serialization

Aug 4, 2021

java springboot interview

Fetching a DTO With a To-Many Association

Aug 3, 2021

java interview

Which build tool is more commonly used for Spring Boot, Maven or Gradle?

Aug 3, 2021

springboot interview

Does getInstance() denote a singleton according the singleton pattern in Java

Aug 2, 2021

java interview

What is a Race Condition

Aug 1, 2021

java interview

Java Array Declaration – How to Initialize an Array in Java with Example Code

Jul 27, 2021

java interview

Important keywords to refer before attending a Java interview

Jul 26, 2021

java interview

How do you assert that a certain exception is thrown in JUnit 4 tests

Jul 25, 2021

java interview

How to catch multiple Java exceptions in the same catch clause

Jul 24, 2021

java interview

What are checked vs unchecked exceptions in Java

Jul 23, 2021

java interview

Vs code shortcuts for Developers in Windows

Jul 23, 2021

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Is it IllegalArgumentException or NullPointerException for a null parameter in Java

Jul 22, 2021

java interview

What is the difference between the following ways of handling InterruptedException? What is the best way to do it in Java

Jul 21, 2021

java interview

What does the Refresh option in Windows actually do

Jul 21, 2021

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How to find the minimum or least value in an Integer List using Java 8

Jul 20, 2021

java interview

What is Association Mapping and examples of One to One, Many to Many and One to Many and Many to One relationships

Jul 19, 2021

java interview

What is the difference between query, native query, named query and typed query

Jul 18, 2021

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What are the examples of GoF Design Patterns in Java's core libraries

Jul 17, 2021

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How to know which Java thread is hogging the CPU

Jul 17, 2021

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How many threads can a Java VM support

Jul 16, 2021

java interview

What are Semaphore problems in Java with the Dining Philosophers

Jul 15, 2021

java interview

What are important Threading Techniques & Concepts in Java

Jul 14, 2021

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Is it possible view/pause/kill a particular thread from a different java program running on the same JVM

Jul 13, 2021

java interview

How to make your collections thread-safe?

Jul 12, 2021

java interview

What are the best naming conventions for threads in Java

Jul 11, 2021

java interview

In Java, do I need to declare my collection synchronized if it's read-only

Jul 10, 2021

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Java 11 Features

Jul 10, 2021

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Synchronizing on String objects in Java

Jul 9, 2021

java interview

How many threads should I use in my Java program

Jul 8, 2021

java interview

What is the volatile keyword useful for in Java.

Jul 7, 2021

java interview

How to implement simple threading with a fixed number of worker Threads

Jul 6, 2021

java interview

What is the difference between notify() and notifyAll() in Threads.

Jul 5, 2021

java interview

What would make a single task executor stop processing tasks in Java Threads.

Jul 4, 2021

java interview

How can you ensure a block of code can not be interrupted by any other Thread in Java

Jul 3, 2021

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How to test methods that call System.exit() in Java

Jul 3, 2021

java interview

How are Java Thread priorities translated to an OS thread priority

Jul 2, 2021

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How to parse logs written by multiple Threads

Jul 1, 2021

java interview

What are the benefits of Performance Optimization in Java

Jun 30, 2021

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What is Garbage Collection Performance Tuning in Java

Jun 29, 2021

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What are the best Coding Practices to be followed while writing Java code in order to avoid performance issues

Jun 28, 2021

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How to wait for a number of threads to complete in Java

Jun 6, 2021

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Which concurrent Queue implementation, should I use it in Java

Jun 5, 2021

java interview

What is the difference between a synchronized method and synchronized block in Java

Jun 4, 2021

java interview

How to make an ArrayList Read Only in Java

Jun 3, 2021

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Core java interview questions and answers

May 20, 2021

java interview

Restful web services interview questions

May 20, 2021

springboot interview

WAP to print the sum of harmonic progression series

Apr 30, 2021

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How Cache data to improve performance

Apr 27, 2021

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What is a Java bean

Apr 26, 2021

java interview

WAP to define a method which returns the sum of digits of the given two digit number in Java

Apr 26, 2021

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What is abstraction in Java

Apr 25, 2021

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Real time example of a singleton design pattern in Java

Apr 24, 2021

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What is the difference between Static and Dynamic web application

Apr 24, 2021

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What is frontend and backend web development

Apr 21, 2021

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What is final keyword in java

Apr 20, 2021

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What is instanceof operator in Java

Apr 20, 2021

java J2ee interview

What is Instance Initializer block in Java

Apr 20, 2021

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What is super keyword in java

Apr 18, 2021

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What is Covariant Return Type in java

Apr 17, 2021

java interview

What is method overriding in Java

Apr 17, 2021

java J2ee interview

What is method overloading in Java

Apr 15, 2021

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What is Polymorphism in Java

Apr 14, 2021

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Java Static keyword real time example in Java

Apr 14, 2021

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WAP to check sorting order in list in Java

Apr 13, 2021

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WAP to create a thread using lambda expression and print “Hello” in Java

Apr 13, 2021

java Java8 interview

Java interview question on interfaces implemented by class with same default method in two interfaces

Apr 13, 2021

java interview

How to create a memory leak in Java

Jun 12, 2020

java interview

Why is processing a sorted array faster than processing an unsorted array in Java

Jun 11, 2020

java interview

How to convert a String to an int in Java

Jun 10, 2020

java interview

What are MVP and MVC and what is the difference between MVP and MVC

Jun 9, 2020

java interview

What is a serialVersionUID and why should I use it in Java

Jun 8, 2020

java interview

When to use LinkedList over ArrayList in Java

Jun 7, 2020

java interview

What is the difference between StringBuilder and StringBuffer in Java

Jun 6, 2020

java interview

How to avoid NullPointerException in Java

Jun 5, 2020

java interview

How do I read / convert an InputStream into a String in Java

Jun 4, 2020

java interview

How do I efficiently iterate over each entry in a Java Map

Jun 2, 2020

java interview

What are the differences between a HashMap and a Hashtable in Java

Jun 1, 2020

java interview

Java JDBC important interview questions

Apr 24, 2020

java interview

What are available JDBC drivers and difference between them and when to use

Apr 23, 2020

java interview

What are the steps to connect to a database using JDBC API

Apr 22, 2020

java interview

What is statement, prepared statement and callable statement in JDBC and Why are they used

Apr 21, 2020

java interview

What is transaction management and ACID properties in JDBC

Apr 20, 2020

java interview

In Java, what is the best way to determine the size of an object

Feb 10, 2020

java interview

How do I generate random integers within a specific range in Java

Feb 5, 2020

java interview

What is the difference between public, protected, package-private and private in Java

Feb 3, 2020

java interview

Does Java support default parameter values

Feb 1, 2020

java interview

What is a Spring Bean Lifecycle

Jan 22, 2020

springboot interview

What is the difference between Spring, Spring Boot and Spring MVC

Jan 20, 2020

springboot interview

What are the modules of Spring framework

Jan 18, 2020

springboot interview

Java new features that needs to be at your finger tips

Jan 1, 2020

java interview

What is the difference between writing a property on application.yml or bootstrap.yml in spring boot

Jan 12, 2019

java interview springboot

How to add context path to Spring Boot application

Jan 11, 2019

java interview springboot

How to set active profile and config location from command line in spring boot

Jan 8, 2019

java interview springboot

How does the Java 'for each' loop work

Jan 8, 2019

java interview

Twitter Bootstrap Development Introduction

Jan 7, 2019

java interview

SSL Configuration in Apache MINA Server

Jan 6, 2019

java interview

An Introduction to Apache Mina Server

Jan 5, 2019

java interview

Tomcat Performance Tuning in Production Server

Jan 4, 2019

java interview

MySQL Backup/Restore in Windows, Linux and using Java Program

Jan 3, 2019

java interview

Apache Mina - Simple Client/Server Application

Jan 2, 2019

java interview

Float, Double and BigDecimal with Financial Calculation

Jan 1, 2019

java interview

Convert MySQL database from MyISAM to InnoDB

Dec 30, 2018

java interview

What is the difference between Hashtable and ConcurrentHashMap in Java

Dec 29, 2018

java interview

What is CLASSPATH in Java

Dec 28, 2018

java interview

What is connection pooling in Java

Dec 27, 2018

java interview

What is the best way to store passwords in Java

Dec 26, 2018

java interview

What is Marker Interface in Java

Dec 25, 2018

java interview

Why String is Immutable or Final in Java

Dec 25, 2018

java interview

What is SubString and Memory Leak in Java

Dec 24, 2018

java interview

What is Encoding and Decoding in Java

Dec 23, 2018

java interview

What are Maven Plugins

Dec 22, 2018

java interview

What is a Maven Repository

Dec 21, 2018

java interview

What is POM (Project Object Model) And Pom.Xml in Maven

Dec 20, 2018

java interview

What is Hibernate Interceptor in Java Application Development

Dec 19, 2018

java interview

How to publish your local web server to internet without any port forwarding

Dec 18, 2018

java interview

What are Primitive and Wrapper Classes in Java

Dec 17, 2018

java interview

What is classloading Mechanism in Java

Dec 16, 2018

java interview

What is Singleton Design Pattern in Java

Dec 15, 2018

java interview

Servlet and its working

Dec 14, 2018

java interview

How an AJAX Request works

Dec 13, 2018

java interview

What is HTTP/2 Protocol

Dec 13, 2018

java interview

Java IO - Interview Questions

Dec 12, 2018

java interview

Java 8 Features

Dec 10, 2018

java interview

Introduction to Java Thread Profiling

Dec 9, 2018

java interview

Advanced Java Web Interview Questions And Answers

Dec 8, 2018

java interview

New Features in Java 9

Dec 7, 2018

java interview

Important JDBC Interview questions and answers for Java Developer interview

Dec 6, 2018

java interview

Important Java 8 Interview Questions

Dec 5, 2018

java interview

The difference between the Runnable and Callable interfaces in Java

Dec 4, 2018

java interview

What are the effects of exceptions on performance in Java

Dec 2, 2018

java interview

What is the difference between “implements Runnable” vs “extends Thread” in Java

Dec 1, 2018

java interview

What are the most frequent concurrency issues encounter in Java

Nov 30, 2018

java interview

How to avoid synchronized(this) in Java

Nov 29, 2018

java interview

How does synchronized work in Java

Nov 28, 2018

java interview

How to use threads and recursion in Java to print Fibonacci numbers

Nov 27, 2018

java interview

How do you kill a Thread in Java

Nov 26, 2018

java interview

What is mutex and semaphore in Java and its differences

Nov 25, 2018

java interview

Are Synchronized Methods Slower In Single Threaded Applications in Java

Nov 24, 2018

java interview

Is it possible to use Object.wait(millisec) to simulate sleep in Java Threads

Nov 22, 2018

java interview

What is the difference between Executors.newCachedThreadPool() and Executors.newFixedThreadPool() in Java MultiThreading

Nov 21, 2018

java interview

WAP to Concatenate a given string to the end of another string in Java

Apr 1, 2015

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