Question

Write a program that asks the user to enter a series of numbers separated by commas. Here is an example of valid input:

7,9,10,2,18,6

The program should calculate and print the sum of all the numbers.

Sample Run
java NumberSum

Enter·numbers·separated·by·commas:1,2,3↵
6↵

Answer 1

import java.util.Scanner;

import java.util.StringTokenizer;

public class Main

{

public static void main(String[] args)

{

double sum = 0; //calculate sum

String number; // string to input

Scanner sc = new Scanner(System.in); // scanner for input

System.out.println("Enter·numbers·separated·by·commas:");

number = sc.nextLine(); //input number

StringTokenizer strTokenizer = new StringTokenizer(number, ",");

//break string into different tokens

while (strTokenizer.hasMoreTokens())

{

sum = Double.parseDouble(strTokenizer.nextToken())+sum;

//parse those tokens from string to double to calculate sum

}

System.out.print("Sum: "+ sum);

}

}

OUTPUT:

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