How to initialize an array in java?

Source:

import java.util.Arrays;

public class NewArray {

   public static void main(String[] args) {

      int a1[] = new int[99]; 
      int a2[] = new int[] {10,20,30,40,50};

    System.out.println("a1.length: " + a1.length);
    System.out.println("a2 content: " + Arrays.toString(a2));
   }
}

Output:

   $ java NewArray 
   a1.length: 99
   a2 content: [10, 20, 30, 40, 50]