Write a Java program if input array is like {10,20,30,40} then output should be like {90,80,70,60}

Ques: Write a Java program if input array is like {10,20,30,40} then output should be like {90,80,70,60}.

package com.tutorial4u;

import java.util.Scanner;

public class ArrayDemo {

       public static void main(String[] args) {

              Scanner sc = new Scanner(System.in);

              int sum=0;

              System.out.println("Enter size of an array");

              int num = sc.nextInt();

              System.out.println("Enter Element of an array");

              int[] a = new int[num];

              int[] b = new int[num];

              for(int i =0;i<num;i++){

                     a[i] = sc.nextInt();

              }

              for(int i=0;i<num;i++){

                     sum+= a[i];

              }

              for(int i=0;i<num;i++){

                     b[i]= sum-a[i];

              }

              System.out.println("Output is:");

              for(int number:b){

                     System.out.println(number);

              }

       }

}

Output :

Enter size of an array

4

Enter Element of an array

10

20

30

40

Output is:

90

80

70

60