What does the method copyOfRange(int[] original, int from, int to) do in java?

Java 8Object Oriented ProgrammingProgramming

The copyOfRange(int[] original, int from, int to) method of java.util.Arrays class copies the specified range of the specified array into a new array. The final index of the range (to), which must be greater than or equal to from, may be greater than original. Length, in which case 0 is placed in all elements of the copy whose index is greater than or equal to original. Length - from. The length of the returned array will be to - from.

Example

import java.util.Arrays;

public class ArrayDemo {
   public static void main(String[] args) {
      int[] arr1 = new int[] {5, 62, 15};
      System.out.println("Printing 1st array:");

      for (int i = 0; i < arr1.length; i++) {
         System.out.println(arr1[i]);
      }
      int[] arr2 = Arrays.copyOfRange(arr1, 2, 6);
      System.out.println("Printing new array:");

      for (int i = 0; i < arr2.length; i++) {
         System.out.println(arr2[i]);
      }
   }
}

Output

Printing 1st array:
5
62
15
Printing new array:
15
0
0
0
raja
Published on 16-Jan-2018 12:41:48
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