minimum sum of absolute difference pairs

 import java.util.*;

public class MinimumAbsoluteDifference {

    public static void main(String[] args) {

        int A[] = { 4, 1, 8, 7 };

        int B[] = { 2, 3, 6, 5 };

        Arrays.sort(A);

        Arrays.sort(B);

        int minDiff = 0;

        for (int i = 0; i < A.length; i++) {

            minDiff += Math.abs(A[i] - B[i]);

        }

        System.out.println("The Minimun sum of Absolute Difference between elements is " + minDiff);

    }

}