Java Programming Array Small Programs More Programs

print hello world ten times:

class Forloop1{
  public static void main(String args[]){
        int i;
       for(i=1;i<=10;i++){
           System.out.println("Hello World");
       }
  }
}

print number from 1 to 10:

class Number{
  public static void main(String args[]){
        int i;
       for(i=1;i<=10;i++){
           System.out.println(i);
       }
  }
}

Reverse a number 1234 output 4321:

class ReverseNumber {

    public static void main(String[] args) {

        int num , reversed = 0;

        for(num = 1234;num != 0; num /= 10) {
            int digit = num % 10;
            reversed = reversed * 10 + digit;
        }

        System.out.println("Reversed Number: " + reversed);
    }
}

find sum of digits 1234:

class DigitsSum
{

	public static void main(String[] args) 
	{
		int num=1234, rem = 0, sum = 0, temp;
		temp = num;
 
		for (int i=0;num > 0;i++)
		{
			rem = num % 10;
			sum = sum + rem;
			num = num / 10;
		}
 
		System.out.print("Sum of Digits of " + temp + " is " + sum);
	}

}

print * pyramid pattern:

import java.io.*;
 class pyramid
{
     public static void printStars(int n)
    {
        int i, j;
 
        
        for(i=0; i
 
Try it Yourself  

print char from a to z:

class Characters {

    public static void main(String[] args) {

        char c;

        for(c = 'A'; c <= 'Z'; ++c)
            System.out.print(c + " ");
    }
}

1 12 123 1234 12345 number pyramid:

   class Numpyramid
{
    public static void main(String[] args) 
    {
       
         
        int rows = 5;
       
        for (int i = 1; i <= rows; i++) 
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(j+" ");
            }
             
            System.out.println();
        }
         
       }
    }

print 5 table:

class Multiplication_Table 
{
    public static void main(String[] args) 
    {
        int n=5;
        for(int i=1; i <= 10; i++)
        {
            System.out.println(n+" * "+i+" = "+n*i);
        }
    }
}