Java Questions

What is a Package In java, we can group a number of classes into a single unit known as packages which also act as a container for a group of classes. Packages resolve name conflicts in the class names. Different packages can contain the classes with the same names. We can import a package using […]

Method Overloading in Java Method overloading in Java is a feature that allows a class to have more than one method having the same name, with different method signatures. It is similar to constructor overloading in java which allows a class to have more than one constructor having different argument lists. Method signature = method […]

Introduction In this tutorial, we will go through the steps involved in how to fix the Eclipse error could not find java.dll. Eclipse installation depends on clean Java install on the machine. This error is due to corrupt java install on the machine. Eclipse Error during the launch Error: opening registry key ‘Software\JavaSoft\Java Runtime Environment’ […]

Introduction The four operators arithmetic operators are: + (used for addition) –  (used for subtraction) *  (used for multiplication) /  (used for division)  Java Code listing package com.testingdocs.demo; //ArithmeticOperatorDemo.java //www.TestingDocs.com public class ArithmeticOperatorDemo { public static void main(String[] args) { int x=24; int y=12; int sum=0; int substract=0; int product=0; float division=0.0f; System.out.println(“x =” +x); […]

Introduction Relational operator Less Than (<) and the operator Less Than Equal to (<=) compares two variables for the relation less than or less than equal to. < Relational Operator a < b evaluates to true if a is less than b else false Similarly, a <= b evaluates to true if a is less […]

Introduction Relation operator Greater Than( > ) and the operator Greater than Equal to (>=) compares two variables for the relation greater than or greater than equal to. > Relational Operator a > b  evaluates to true if a is greater than b else false Similarly, a >= b evaluates to true if a is […]