I need someone to do this using java or C


A man just purchased a cd pack containing recharge vouchers. Each recharge voucher has 8 digits. Your task is to write a program to input a list of all the vouchers and output the sum of all digits in the vouchers.

Sample Input

00000001
10000002
20000003

Sample output
9

Can't you just create an array and loop it?

@ Beaf
I already av a solution but pls let me c urs, thanks

skoten:

@ Beaf
I already av a solution but pls let me c urs, thanks

Then, you should have posted your solution and asked if anyone could improve or provide something better. Post your solution.

lmao!!!

OP, why don't you post what you have. This sounds like a homework problem to me. You are already on the right track by solving this yourself, because in the "real world" you will need to solve problems yourself.

Why do you need alternative when you have the solution.

forums are meant to help with problems.

import java.util.*;
import javax.swing.*;

class Recharge {
public static void main(String args[]) {

int a = Integer.parseInt(JOptionPane.showInputDialog("Enter number of Vouchers: ");

int TotalSum = 0;
int sum[] = new int[a];
int div[] = new int[a];
int Voucher[] = new int[a];


for(int i=0; i<=Voucher.length; i++){
sum[i] = 0;
Voucher[i] = Integer.parseInt(JOptionPane.showInputDialog("Enter Digits for the Voucher[]: ");
while (Voucher[i] > 0) {
div[i] = Voucher[i] % 10;
sum[i] = sum[i] + div[i];
Voucher[i] = Voucher[i] / 10;
}
System.out.println("\nSum of digits in Voucher is " + sum[i]);

TotalSum = TotalSum + sum[i];

System.out.println("\nSum of all digits in the pack are " + TotalSum);

}

}
}

safe,

First you have a nice code there. It actually solves the problem in hand. Right. But if you need to do this for say 100 or even a 1000 voucher how long will it take you to do this. So assuming this is a code for a "commercial " or even a program to help, i think a Japanese calculator will do fine.

So here is your solution. The voucher number can easily be save in a file. Your program will read the numbers from the file.

get a file
read the file
get each voucher(item)
do operation;

Finally, no one seems to want to touch your code cos you ainnt so clear about what you want done.

am currently having some problems with installation of java cd any help

@skoten

An idea would be to pass blocks (or all, depending on size) of your input data as a pre concatinated string, convert into a char array, iterate, convert to in and sum. You could polish what I given below;

Sample Input

00000001
10000002
20000003

Becomes "000000011000000220000003"

You can convert the code below into a method.

//===================================Code follows
int TotalSum = 0;
String str = "000000011000000220000003";
char[] charArray = str.toCharArray();       
for (char c : charArray)
{
      TotalSum = TotalSum + Integer.parseInt(c);
}

I have added simple error handling to beef's code

U need to have commons-lang.jar in your classpath

//===================================Code follows
int TotalSum = 0;
String str = "000000011000000220000003";
char[] charArray = str.toCharArray();

for (char c : charArray)
{
if(CharUtils.isAsciiNumeric(c)){
TotalSum = TotalSum + CharUtils.toIntValue(c);
}
//TotalSum = TotalSum + Integer.parseInt(c);
}