Java Arrays.copyOf(U[] original, int newLength, Class <? extends T[]> newType)

Syntax

Arrays.copyOf(U[] original, int newLength, Class <? extends T[]> newType) has the following syntax.

public static <T,U> T[] copyOf(U[] original,  int newLength,   Class <? extends T[]> newType)

Example

In the following code shows how to use Arrays.copyOf(U[] original, int newLength, Class <? extends T[]> newType) method.


/* w  w  w  .j a  v  a  2 s.co  m*/

import java.util.Arrays;

public class Main {

  public static void main(String[] args) {

    Short shortArr[] = new Short[] { 1, 2, 15, 50, 100 };

    // copy the array into another Number array
    Number[] arr2 = Arrays.copyOf(shortArr, 5, Number[].class);

    System.out.println(Arrays.toString(arr2));

  }
}

The code above generates the following result.