Question

Q) You have been asked to develop a program which processes C++ null-terminated strings to extract character and numerical data separately. Assume that the users runs the application (examTest.exe) from the command line as follows: examTest.exe X-Axis:10,Y-Axis:17,Z-Axis:-6 Your application should step through the input arguments and extract the values of the XAxis, Y-Axis and Z-Axis commands. The user must always enter the arguments in the specified order, however your application should check they are correct. At the end of your application, the values of X-Axis, Y-Axis and Z-Axis should be stored as separate integers.

Answer 1

Note: Done accordingly. Please comment for any problem. Please Uprate. Thanks

Code:

#include<iostream>
#include <string>
#include <vector>
#include <sstream>
using namespace std;

bool startsWith(const char *a, const char *b)
{
if(strncmp(a, b, strlen(b)) == 0) return 1;
return 0;
}

int main(int argc, char* argv[]) {
   if(argc<2){
       cout<<"Usage: examTest.exe X-Axis:#,Y-Axis:#,Z-Axis:# \n";
       return 1;
   }
   try{
       int x,y,z;
       vector<string> vect;
       string s(argv[1]);
       stringstream ss(s);

       while( ss.good() )
       {
           string substr;
           getline( ss, substr, ',' );
           vect.push_back( substr );
       }

       for(int i=0;i<vect.size();i++)
       {
           int n = vect.at(i).length();
  
           // declaring character array
           char char_array[7];
  
           strcpy(char_array, vect.at(i).c_str());
           char *next = strtok(char_array, ":");
           string s(next);
           if(s.compare("X-Axis") == 0){
               next = strtok(NULL, ",");
               if(next!=NULL){
                   x=atoi(next);
               }else{
                   throw exception("Invalid Input");
               }
           }else if(s.compare("Y-Axis") == 0){
               next = strtok(NULL, ":");
               if(next!=NULL){
                   y=atoi(next);
               }else{
                   throw exception("Invalid Input");
               }
           }else if(s.compare("Z-Axis") == 0){
               next = strtok(NULL, ":");
               if(next!=NULL){
                   z=atoi(next);
               }else{
                   throw exception("Invalid Input");
               }
           }else{
               throw exception("Invalid Input");
           }
       }
       cout<<"Value of X-Axis is :"<<x<<endl;
       cout<<"Value of Y-Axis is :"<<y<<endl;
       cout<<"Value of Z-Axis is :"<<z<<endl;
   }catch(exception){
       cout<<"Usage: examTest.exe X-Axis:#,Y-Axis:#,Z-Axis:# \n";
       return 1;
   }
   system("pause");
   return 0;
}

Output: