What is the difference between @Resource, @Inject and @Autowired in Spring Framework

javaspringboot

How to Fix the Java Exception java.lang.UnsupportedClassVersionError Unsupported major.minor version

javainterview

What is Execution context class in Java

javaspringbootinterview

How to test RESTful Web Service (Controller) in Spring Framework Offline (No Server, No Database)

javaspringboot

What is the best way to mock an Java Azure EventHubProducerClient with Mockito

javaspringboot

How to Hit a HTTP POST API using JSON as a Request body in Java

javainterview

How to convert an integer to an array of digits in Java

javainterview

Why do we need interfaces in Java

javainterview

Convert MySQL database from MyISAM to InnoDB

javainterview

What is the difference between Hashtable and ConcurrentHashMap in Java

javainterview

How to resolve the Error return type is incompatible in Java

javainterview

What is CLASSPATH in Java

javainterview

How does synchronized work in Java

javainterview

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

javainterview

What is connection pooling in Java

javainterview

What is the best way to store passwords in Java

javainterview

How do you kill a Thread in Java

javainterview

What is mutex and semaphore in Java and its differences

javainterview

Why String is Immutable or Final in Java

javainterview

What is a SubString and Memory Leak in Java

javainterview

Are Synchronized Methods Slower In Single Threaded Applications in Java

javainterview

What is Encoding and Decoding in Java

javainterview

What are Maven Plugins

javainterview

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

javainterview

Write a program to find Duplicate character in a String Java

javainterview

What is a Maven Repository

javainterview

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

javainterview

Log4J Vulnerability (Log4Shell) Explained - for Java developers

javainterview

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

javainterview

What are WebSockets and How is it different from HTTP

javainterview

What is Hibernate Interceptor in Java Application Development

javainterview

Is Oracle JDK Free again - for Java developers

javainterview

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

javainterview

What are Primitive and Wrapper Classes in Java

javainterview

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

javainterview

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

javainterview

What is Singleton Design Pattern in Java and Why it is used

javainterview

Should try...catch go inside or outside a loop in Java

javaspringbootinterview

What is Servlet and How does it work

javainterview

What is the difference between @Mock and @InjectMocks

javaspringbootinterview

How an AJAX Request works

javainterview

What is Race Condition In MultiThreading Java

javainterview

What is the difference between Junit and Mockito

javaspringbootinterview

How to find a file recursively in Java

javainterview

Java IO - Interview Questions

javainterview

What is Synchronized in Java MultiThreading

javainterview

How to find age using date of birth in Java

javainterview

How to print Thread numbers in MultiThreading Java

javainterview

How to resolve 401 Unauthorized The request requires user authentication. The response MUST include a WWW-Authenticate header field (section 14.47) containing a challenge applicable to the requested resource in Java

javaspringboot

How to check the version of java installed on my computer

javainterview

What is join method used for in MultiThreading Java

javainterview

How to get the width and height of a string in Java

javainterview

Introduction to Java Thread Profiling

javainterview

How to convert date in to yyyy-MM-dd Format in Java

javainterview

What is isAlive method used for in MultiThreading Java

javainterview

Difference between Map and Flat Map

javainterview

How to create and run multiple threads using for loop

javainterview

Advanced Java Web Interview Questions And Answers

javainterview

How exception handling effects the performance in Java

javainterview

What is MultiThreading and How to create a thread in Java

javainterview

How to resolve the Error opening registry key Java

javainterview

Important JDBC Interview questions and answers for Java Developer interview

javainterview

Important Java 8 Interview Questions

javainterview

How to use java.net.URLConnection to send and handle HTTP requests

javainterview

keytool error Keystore was tampered with, or password was incorrect, generate a Self Signed JKS Certificate using keytool

springbootjava

How to resolve "java.lang.OutOfMemoryError Java heap space" error

javainterview

The difference between the Runnable and Callable interfaces in Java

javainterview

How can an application use multiple cores or CPUs in Java

javainterview

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

javainterview

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

javainterview

How to do low level system design for a Logging Framework like Log4J

javainterview

Wap to convert String of vowels and consonants into 0's and 1's and print the decimal value of the binary string in Java and Python

javainterviewpython

Simple code Naming things and Naming Conventions

javainterview

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

javainterview

How to Convert DOCX to HTML in Java

javainterview

How to remove substring from String in Java

javainterview

Java virtual Machine(JVM) and its architecture

javainterview

Can we restrict visibility of derived method in Java and What is visibility control in java

javainterview

What is java.lang.NoClassDefFoundError in Java and How to resolve it

javainterview

What Down casting in Java

javainterview

What is Builder Pattern in Java

javainterview

What is java.lang.ClassNotFoundException in Java and How to resolve it

javainterview

What are Access Specifiers in Java

javainterview

Wap to find if a Given Array is Monotonic in Java

interviewjava

What is the difference between Data and Information

datastructuresjava

How to remove duplicates and sort the array without using inbuilt functions like .sort or sorting algorithms from an unsorted array

interviewjava

What are Data Structures and its examples

datastructuresjava

WAP to find the sum of all the numbers in a list using in Java 8

interviewjava

What is StringJoiner and its uses in Java 8 with an example

interviewjava

What are Mathematical,Algorithmic Notations and Functions in Data Structures

datastructuresjava

What are Arrays in Java

datastructuresjava

How arrays are stored in the memory

datastructuresjava

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

javainterview

What is the Big-O notations of the Array operations

datastructuresjava

Can You Override Static Method in Java

javainterview

What is a Bubble Sort & How does it work

datastructuresjava

Data Structures - Selection Sort Algorithm

datastructuresjava

Does Java Support Pass by Value or Pass by Reference

javainterview

Data Structures - Insertion Sort Algorithm

datastructuresjava

Difference between Factory and Abstract Factory Design Pattern in Java

javainterview

Data Structures - Shell Sort Algorithm

datastructuresjava

Data Structures - Merge Sort Algorithm

datastructuresjava

Data Structures - Quick Sort Algorithm

datastructuresjava

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

javainterview

Data Structures - Counting Sort Algorithm

datastructuresjava

What is Encapsulation in Java and OOP with Example

javainterview

Data Structures - Radix Sort Algorithm

datastructuresjava

What is Inheritance in Java with example - Object Oriented Programming

javainterview

How to sort an array in Java

datastructuresjava

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

javainterview

What is a List Data Structure in Java

datastructuresjava

Difference between Inheritance and Composition in Java and Object Oriented Programming

javainterview

What is an ArrayList Data Structure in Java

datastructuresjava

What is Linked List in Data Structures

datastructuresjava

Protect Your Code From Bugs An Overview of Five Static Analyzers for Java Code

java

What is Traversing, Searching Linked List in Data Structures

datastructuresjava

What is Memory Allocation, Overflow and Underflow in Garbage Collection of Linked List Data Structures

datastructuresjava

OOPs Concepts in Java with Basic Examples

javainterview

Lambda Expressions in Java

java

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

javainterview

Fetching a DTO With a To-Many Association

javainterview

What is a Race Condition

javainterview

How to catch multiple Java exceptions in the same catch clause

javainterview

What are checked vs unchecked exceptions in Java

javainterview

Is it IllegalArgumentException or NullPointerException for a null parameter in Java

javainterview

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

javainterview

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

javainterview

How to know which Java thread is hogging the CPU

javainterview

How many threads can a Java VM support

javainterview

What are important Threading Techniques & Concepts in Java

javainterview

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

javainterview

How to make your collections thread-safe?

javainterview

What are the best naming conventions for threads in Java

javainterview

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

javainterview

Heap and Stack Memory Errors in Java

java

Pass a Parameter to All JVMs in A Machine at The Same Time

java

Synchronizing on String objects in Java

javainterview

How many threads should I use in my Java program

javainterview

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

javainterview

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

javainterview

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

javainterview

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

javainterview

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

javainterview

How are Java Thread priorities translated to an OS thread priority

javainterview

What are packages in Java

javainterview

How to parse logs written by multiple Threads

javainterview

What are the benefits of Performance Optimization in Java

javainterview

What is Garbage Collection Performance Tuning in Java

javainterview

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

javainterview

How to create a memory leak in Java

javainterview

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

javainterview

How to convert a String to an int in Java

javainterview

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

javainterview

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

javainterview

When to use LinkedList over ArrayList in Java

javainterview

What is the difference between StringBuilder and StringBuffer in Java

javainterview

Which concurrent Queue implementation, should I use it in Java

javainterview

How to avoid NullPointerException in Java

javainterview

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

javainterview

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

javainterview

How to make an ArrayList Read Only in Java

javainterview

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

javainterview

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

javainterview

What is a Java bean

javainterview

Java JDBC important interview questions

javainterview

Real time example of a singleton design pattern in Java

javainterview

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

javainterview

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

javainterview

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

javainterview

What is final keyword in java

javainterview

What is Instance Initializer block in Java

javainterview

What is instanceof operator in Java

javaJ2eeinterview

What is transaction management and ACID properties in JDBC

javainterview

How to fetch multiple host names from config file management in Jenkins pipeline groovy script

javaDevOpsmaven

What is super keyword in java

javainterview

What is Covariant Return Type in java

javainterview

What is method overriding in Java

javaJ2eeinterview

What is method overloading in Java

javainterview

What is Polymorphism in Java

javainterview

How to Encrypt and Decrypt a file using CryptoJS AES encryption and Java AES decryption

javaJ2eeAES256

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

javaJava8interview

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

javainterview

AES256 Exception in thread "main" java.security.InvalidKeyException Illegal key size or default parameters in Java

javaJ2ee

Listagg function overflow error ORA-01489 in Java

javaoracleJ2ee

What is the difference between final, finally, finalize in Java

javainterview

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

javainterview

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

javainterview

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

javainterview

Does Java support default parameter values

javainterview

What is the load factor of Hashmap in Java

javainterview

How to implement bubble sort by using only one for loop

javainterview

Why don't Java's +=, -=, *=, /= compound assignment operators require casting?

javainterview

Write a Comparator in Java to compare two employees based upon name, age and address

javainterview

How to break Singleton Design pattern in Java

javainterview

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

javainterviewspringboot

How to add context path to Spring Boot application

javainterviewspringboot

How does ternary operator work in java

java

What is the best way of writing an integration test in Spring boot

springbootjava

How to learn Java quick

java

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

javainterviewspringboot

How does the Java 'for each' loop work

javainterview

Why SpringBoot 2.2.2 Jackson serializer for custom pagination doesn't work

springbootjava

What is the story behind Java

java

Twitter Bootstrap Development Introduction

javainterview

What is multiple spring ApplicationContext in Java

springbootjava

What is Dependency Inversion Principle in SOLID Design Principles of Object Oriented Programming

java

SSL Configuration in Apache MINA Server

javainterview

An Introduction to Apache Mina Server

javainterview

What are SOLID Design Principles in Object Oriented Programming Java

java

What is Single Responsibility Principle in SOLID Design Principles of Object Oriented Programming

java

Tomcat Performance Tuning in Production Server

javainterview

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

javainterview

What is Open-Closed Principle in SOLID Design Principles of Object Oriented Programming

java

Apache Mina - Simple Client/Server Application

javainterview

What is Liskov Substitution Principle in SOLID Design Principles of Object Oriented Programming

java

Float, Double and BigDecimal with Financial Calculation

javainterview

Java new features that needs to be at your finger tips

javainterview

What is Interface-Segregation Principle in SOLID Design Principles of Object Oriented Programming

java