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Java Program to copy an array from the specified source array
Use arraycopy() method in Java to copy an array from the specified source array.
Here, we have two arrays −
int arr1[] = { 10, 20, 30, 40}; int arr2[] = { 3, 7, 20, 30};
Now, we will use the arraycopy() method to copy the first two elements of the 1st array to the 2nd array −
System.arraycopy(arr1, 0, arr2, 2, 2);
The following is an example −
Example
import java.lang.*; public class Demo { public static void main(String[] args) { int arr1[] = { 10, 20, 30, 40}; int arr2[] = { 3, 7, 20, 30}; System.arraycopy(arr1, 0, arr2, 2, 2); System.out.print("New Array = "); System.out.print(arr2[0] + " "); System.out.print(arr2[1] + " "); System.out.print(arr2[2] + " "); System.out.print(arr2[3] + " "); } }
Output
New Array = 3 7 10 20
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