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What does the method copyOfRange(int[] original, int from, int to) do in java?
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
Updated on: 13-Jun-2020
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