Question

Write a section of Java code using while, do-while and for loops

Write a section of Java code that will print out random integers between 1 and 100 while N is less than or equal to 5.

Sample output

>

random # 1 is: 73

random # 2 is: 68

random # 3 is: 76

random # 4 is: 64

Answer 1

import java.util.Random;

//Main.java
public class Main {
  public static void main(String[] args) {
    Random random = new Random();

    //while loop
    int N = 1;
    while(N<5){
      System.out.println("random # "+N+" is: "+(random.nextInt(100)+1));
      N++;
    }
    System.out.println();

    //do-while loop
    N = 1;
    do{
      System.out.println("random # "+N+" is: "+(random.nextInt(100)+1));
      N++;
    }while(N<5);
    System.out.println();

    //for loop
    for(N = 1;N<5;N++){
      System.out.println("random # "+N+" is: "+(random.nextInt(100)+1));
    }while(N<5);
    System.out.println();
  }
}