scanf problems with strings and chars

[Noodles]

Hi,

Im quite new to C++ and am trying to learn most of the commands.
So i wanted to make a Programm that has a normal mode and a non normal mode, kindof.
And i wanted to make a question, which the user has to answer to start normal or unnormal mode.
I think this code should show my idea.

The if command never Reacts to a j.
Why is that??

  char jon;
 
    printf("Should normal mode be executed?  [j/n]");
    cout << endl;
    scanf("%s",jon);
    fflush(stdin);
  if (jon == "j"){}
  else{}
 

Thanks

[Banfa]

Line 3 and 4, do not mix C and C++ io routines, you have no guarantee they are compatible. You are using C++ so use C++ cout << "Should normal mode be executed? [j/n]" << endl;

Line 5 This is C++ you should use cin not scanf. %s is for a C style string in an array of char but you provide a single char and not even a pointer to it.

Line 6 Never ever flush stdin. It is undefined behaviour.

Line 7 You can't do with a C style string in an array of char, you can do it with a single char but then you compare to a string constant which wont work. You can do this with a C++ std::string. You are using C++ do things the C++ way.

#include <iostream>
#include <string>
 
  char jon;
  std::string stuff;
 
  std::cout << "Should normal mode be executed?  [j/n]" << std::endl; 
  std::cin >> jon;
  std::getline(cin, stuff); // Clear rest of line from stdin
 
  if (jon == 'j' || jon == 'J')
  {
  }
  else
  {
  }
 

[Noodles]

Ohh,

Ok thanks i didn't know the command cin, this makes life a lot easier.
So thanks a lot!!!