Java program print prime numbers

This java program prints prime numbers, number of prime numbers required is asked from the user. Remember that smallest prime number is 2. Java programming code import java.util.*; class PrimeNumbers { public...

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Java program to find factorial

This java program finds factorial of a number. Entered number is checked first if its negative then an error message is printed. Java programming code import java.util.Scanner; class Factorial { public static...

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Enhanced for loop java

Enhanced for loop java: Enhanced for loop is useful when scanning the array instead of using for loop. Syntax of enhanced for loop is: for (data_type variable: array_name) Here array_name is the name of...

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Java program to find largest of three numbers

This java program finds largest of three numbers and then prints it. If the entered numbers are unequal then "numbers are not distinct" is printed. Java programming source code import java.util.Scanner; class...

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Java program to swap two numbers

This java program swaps two numbers using a temporary variable. To swap numbers without using extra variable see another code below. Swapping using temporary or third variable import java.util.Scanner; class...

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Java exception handling tutorial with example programs

In this tutorial we will learn how to handle exception with the help of suitable examples. Exceptions are errors which occur when the program is executing. Consider the Java program below which divides two integers. import...

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Using multiple classes in Java program

Java program can contain more than one i.e. multiple classes. Following example Java program contain two classes: Computer and Laptop. Both classes have their own constructors and a method. In main method we create object...

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Java constructor tutorial with code examples

Java constructors are the methods which are used to initialize objects. Constructor method has the same name as that of class, they are called or invoked when an object of class is created and can't be called explicitly....

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Java static method

Static methods in Java can be called without creating an object of class. Have you noticed why we write static keyword when defining main it's because program execution begins from main and no object has been created yet....

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Java static block program

Java programming language offers a block known as static which is executed before main method executes. Below is the simplest example to understand functioning of static block later we see a practical use of static...

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Java methods

Java program consists of one or more classes and a class may contain method(s). A class can do very little without methods. In this tutorial we will learn about Java methods.Methods are known as functions in C and C++...

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Java program to convert Fahrenheit to Celsius

Java program to convert Fahrenheit to Celsius: This code does temperature conversion from Fahrenheit scale to Celsius scale. Java programming code import java.util.*; class FahrenheitToCelsius { public static...

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Java program to find odd or even

This java program finds if a number is odd or even. If the number is divisible by 2 then it will be even, otherwise it is odd. We use modulus operator to find remainder in our program. Java programming source code import...

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Java program to add two numbers

Given below is the code of java program that adds two numbers which are entered by the user. Java programming source code import java.util.Scanner; class AddNumbers { public static void main(String args[]) { ...

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How to get input from user in java

This program tells you how to get input from user in a java program. We are using Scanner class to get input from user. This program firstly asks the user to enter a string and then the string is printed, then an integer...

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Java program to print multiplication table

This java program prints multiplication table of a number entered by the user using a for loop. You can modify it for while or do while loop for practice. Java programming source code import java.util.Scanner; class...

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Java program to print alphabets

This program print alphabets on screen i.e a, b, c, ..., z. Here we print alphabets in lower case. Java source code class Alphabets { public static void main(String args[]) { char ch; for( ch = 'a' ; ch <=...

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Java while loop

Java while loop is used to execute statement(s) until a condition holds true. In this tutorial we will learn looping using Java while loop examples. First of all lets discuss while loop syntax: while (condition(s)) { //...

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Java for loop

Java for loop used to repeat execution of statement(s) until a certain condition holds true. for is a keyword in Java programming language. Java for loop syntax for (/* Initialization of variables */ ; /*Conditions...

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Java if else Program

Java if else program uses if else to execute statement(s) when a condition is fulfilled. Below is a simple program which explains the usage of if else in java programming language. Java programming if else statement //...

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