Copying part of Array in Java

package com.tutorialspoint;

import java.util.Arrays;

public class ArrayDemo {
   public static void main(String[] args) {

      // intializing an array arr1
      long[] arr1 = new long[] {15, 10, 45};

      // printing the array
      System.out.println("Printing 1st array:");
      for (int i = 0; i < arr1.length; i++){
         System.out.print(arr1[i]+" ");  
      }
      
      System.out.println("");  

      // copying array arr1 to arr2 with newlength as 5
      long[] arr2 = Arrays.copyOf(arr1, 16);

      // printing the array arr2
      System.out.println("Printing new array:");
      for (int i = 0; i < arr2.length; i++) {
         System.out.print(arr2[i]+" ");
      }
   }
}