loop

Do while loop:

                          In most computer programming languages, a do while loop is a control flow statement that executes a block of code at least once, and then either repeatedly executes the block, or stops executing it, depending on a given boolean condition at the end of the block.

For loop:    

                 In computer science, a for-loop is a control flow statement for specifying iteration, which allows code to be executed repeatedly.

For loop:

                In computer science, a for-loop is a control flow statement for specifying iteration, which allows code to be executed repeatedly.

The program you see bellow is the mixture of all loop;

package com.ritesh;

import java.util.Scanner;

public class loop {
    public static void main(String[] args) {            //main function
      while_loop();
       do_while_loop();
        for_loop();

    }
    public  static  void while_loop()                        //      while loop
    {
        System.out.println("Enter How many time you want to print I am Student;");
        Scanner sc=new Scanner( System.in);
        short name=sc.nextShort();
        String name2="I am a Student;";
        int a = 1;
        while(a<=name)
        {
            System.out.println(a+". "+name2);
            a++;
        }

    }


    public  static  void do_while_loop()                        // do while loop
    {
        System.out.println("Enter how many time you want to print I am a boy");
        Scanner sc=new Scanner(System.in);
        int size=sc.nextInt();
        int m=1;
        do{
            System.out.println("I am a boy");
            m++;
        }
        while(m<=size);
    }
    public  static  void for_loop()                          //for loop
    {
        System.out.println("Enter how many time you want to print I am a good student");
        Scanner sc=new Scanner(System.in);
        byte tot= sc.nextByte();
        String name="I am a good student";
        for(int i=1;i<=tot;i=i+1)
        {
            System.out.println(name);
        }
    }
}