Write a program that prompts a user to enter a binary number (0s and 1s). Your p

Question

Write a program that prompts a user to enter a binary number (0s and 1s). Your program then checks
that it is indeed a binary number, meaning that it contains only 0s and 1s. If it is not the case, your
program should print a message that the number is not a valid binary number. If it is a valid binary
number then your program should count how many 1s are in the word and output the count.


Following is a sample ,the program should be like this:
-------------------------------------------------------------------
Welcome to Shi's Binary Number Evaluator
-------------------------------------------------------------------
Please enter a binary number and I will tell you how many 1s there are: 10101010
There are 4 1s in the binary number 10101010
Thank you for using Shi's Binary Number Evaluator

Explanation / Answer

// Perfectly Worked Under Dev C++   NOW U CAN CHECK

// Previous Program also working fine only thing is u are not stopping window to see result.

#include <iostream>
#include <string>
#include<conio.h>
using namespace std;

int main()
{     
    string inString; //user input string
    //to count number of 1s
    int count=0;
    //to check if number is invalid
    int check=0;
  
        int i=0;
        //banner
    cout<<"----------------------------------------------------"<<endl;
    cout<<"Welcome to Binary Number Evaluator"<<endl;
    cout<<"----------------------------------------------------"<<endl<<endl;
        //getting user input
        cout<<endl<<"Please enter a binary number and I will tell you how many 1s there are: ";
        cin>>inString;
            //loop till the length of string
        while(i<inString.length())
        {
            //if the current bit is not 1 or 0
            if(inString[i]!='1' && inString[i]!='0')
            {
                cout<<endl<<"That is not a valid binary number"<<endl;
                check=1; //invalid number
                break; //break loop
            }
            else if(inString[i]=='1')
            {
                count++; //counting 1s
            }
            i++;
        }
        //displaying result
        if(check==0)
        cout<<endl<<"There are "<<count<<" 1s in binary number "<<inString<<endl;
        cout<<"Thank you for using Binary Number Evaluator"<<endl<<endl;
        getch();
        return 0;
}

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