Welcome to Java Interviews

Select a chapter to start practicing interview questions.

Java Basic

Difference Between JDK, JRE, and JVM in Java

Java First Program

Java Variable

Java Data Types

Java Operators

Java Keywords and Identifiers

Paradigm

Java Modifier

Java-Methods

Java Final Keyword

Java Static Keyword

Java Constructor

Java - if-else

Java - Switch case

Java - do-while Loop

Java - While Loop

Java - For Loop

Java - break Statement

Java - continue Statement

OOPs Concept

Java - Object and Class

Java Inheritance

Java - Types of Inheritance

Java Encapsulation

Java Abstraction

Java Polymorphism

Java Enumeration

Java Overloading

Java Overriding

Java Variable Arguments

Java Wrapper Classes

Type casting

Java - Type casting Overview

Java Arrays

Java - Arrays Overview

String

Java - String overview

Java Collection

Iterator

Java collection

List

Java List

Java ArrayList

Java LinkedList

Java Enhanced For Loop

Set

Java - Set Interface

Java HashSet

LinkedHashSet

Java TreeSet

Java - Comparable and Comparator Interface

Java Generics

Map

Java HashMap

Java TreeMap

Java HashTable

Java Cursors

Queue

Java - Queue Overview

Exception Handling

Java - Types of Exception

Java Exception

Java - Finally Block

Java - Exception hierarchy

throw and throws keyword

Java - Custom Exception

Multithreading

Java Multitasking

Java Thread

Java - Constructors and Methods

Thread Life Cycle

JDBC

Java - CRUD Operations