Question

Java program to find the cumulative sum of the array with a given set of values.Input consist of integers .If the size of an array is zero or lesser then display the message as "Invalid Range".

Answer 1

Solution:

The given problem is solved using Java.

import java.util.*;

public class CumulativeSum{

   public static void main(String args[]){

       Scanner sc=new Scanner(System.in);

       int n,i,s=0;

       System.out.print("Enter number of elements for the array: ");

       n=sc.nextInt();

       if(n<=0)

           System.out.println("Invalid Range.");

       else{

           int a[]=new int[n];

           int c[]=new int[n];

           System.out.println("Enter "+n+" elements..");

           for(i=0;i<n;i++){

               System.out.print("a["+i+"] = ");

               a[i]=sc.nextInt();

               s+=a[i];

               c[i]=s;

           }

           System.out.println("Given Array: "+Arrays.toString(a));

           System.out.println("Cumulative Sum Array: "+Arrays.toString(c));

       }

   }

}

Sample I/O:

Enter number of elements for the array: 5

Enter 5 elements..

a[0] = 1

a[1] = 2

a[2] = 3

a[3] = 4

a[4] = 5

Given Array: [1, 2, 3, 4, 5]

Cumulative Sum Array: [1, 3, 6, 10, 15]

See attachment for verification.