Program to print Sum of all numbers in a string - My CS Tutorial

C program to print or find sum of numbers that are available in a string.
Sum of numbers in a string in C.
In this tutorial we will learn how to write a c program to find or print all numbers that are available in a string and sum of these numbers.
In the first user will enter a string with numerical digits through the keyboard. After it compiler will print the numbers and sum of all numbers.

C program code

#include<stdio.h>

#include<conio.h>

#include<string.h>

#include<stdlib.h>

void main()

{

int i,j=0,temp,sum=0,n;

char str1[100],str2[100]={0};

clrscr();

printf("\n ENTER A STRING OR SENTENCE WITH NUMERICAL DIGITS:\n ");

printf("\n ");

gets(str1);

for(i=0;i<strlen(str1);i++)

{

    if(str1[i]>='0'&&str1[i]<='9')

    {

        str2[j]=str1[i];

        j++;

    }

}

temp=atoi(str2);

printf("\n THAT DIGITS PRESENT IN THIS STRING IS:\n %d\n",temp);

while(temp>0)

{

    n=temp%10;

    sum+=n;

    temp=temp/10;

}

printf("\n SUM OF ALL DIGITS THAT PRESENT IN THIS STRING IS: \n %d\n",sum);

getch();

}

OUTPUT:

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Created by-- HARSH CHAUHAN