Examples of loop with output in java code

class Loops

{

                public static void main(String args[])

                {

                                int i;

                                for(i=0; i<10; i += 2)

                                System.out.print(" " + i);

                                System.out.println();

                                for(i=100; i>=0; i -= 7)

                                System.out.print(" " + i);

                                System.out.println();

                                for(i=1; i<=10; i += 1)

                                System.out.print("*" + ++i);

                                System.out.println();

                                for(i=2; i<100; i *= 2)

                                System.out.print(" " + i);

                }

}

Output:

0 2 4 6 8

100 93 86 79 72 65 58 51 44 37 30 23 16 9 2

*2*4*6*8*10

2 4 8 16 32 64

Calculate square of odd, cube of even , quotient for multiple of 7 with java code.

import javax.swing.*;

class Cal

{

                public static void main(String args[])

                {

                                int n;

                                n = Integer.parseInt(JOptionPane.showInputDialog("enter a value: "));

                                if (n%2==0)

                                {

                                System.out.println("cube of even value = " + n*n*n);

                                JOptionPane.showMessageDialog(null, "cube of even value = " + (n*n*n));

                                }

                                else if (n%2!=0)

                                {

                                System.out.println("square of odd value = " + n*n);

                                JOptionPane.showMessageDialog(null, "square of odd value = " + (n*n));

                                }

                                if (n%7 == 0)

                                {

                                System.out.println("quotient for 7 is " + n/7);

                                JOptionPane.showMessageDialog(null,"quotient for 7 is " + (n/7));

                                }

                                System.exit(0);

                }

}

Show first 10 Fibonacci numbers in message dialog box with java code.

import javax.swing.*;

class Fibo

{

                public static void main(String[] args){

                int n1 = 0,n2 = 1,n3;

                String st;

                st = n1 + "\n" + n2 + "\n";

                for(int i = 1; i<10; i++){

                                n3 = n1 + n2;

                                st += ( n3 + "\n");

                                n1 = n2;

                                n2 = n3;

                }

                JOptionPane.showMessageDialog(null, st);

                System.exit(0);

                }                             

}