Java Collection How to - Generate random array and print array into 10 lines of 10

• Back to Array  ↑

Question

We would like to know how to generate random array and print array into 10 lines of 10.

Answer

import java.util.Random;
//  ww  w .j  a  va  2  s.co  m
public class Main {

  public static void main(String... args) {

    Random rand = new Random();
    int[] a = new int[100];
    for (int i = 0; i < 100; i++) {
      a[i] = rand.nextInt(100);
      System.out.print(a[i] + ", ");
      if ((i + 1) % 10 == 0) {
        System.out.println();
      }
    }
  }
}

The code above generates the following result.

• Back to Array  ↑