while question

[crimshaft]

ok so why doesn't this work. i mean i can go into the different sections but when i'm back at main i can't go into, lets say new game again. ok. i know i'm a super noob but i'm eager to learn. thx a bunch.

#include <iostream>

using namespace std;

int main()

{
    int x;
    while (x!=3) {
        cout<<"**MAIN MENU**\n\n";
        cout<<"1.New game\n2.Options\n3.Exit\n";
        cout<<"Choice:";
        cin>>x;
        cout<<"\n";

            /*NEW GAME*/
            if (x==1) {
                int y;
                while (y!=2) {
                cout<<"*New game*\n\n";
                cout<<"1.Map\n2.Back\n";
                cout<<"Choice:";
                cin>>y;
                cout<<"\n";}
            }

            /*OPTIONS*/
            if (x==2) {
                int z;
                while (z!=2) {
                cout<<"*Options*\n\n";
                cout<<"1.Difficulty\n2.Back\n";
                cout<<"Choice:";
                cin>>z;
                cout<<"\n";}
                }

            }

}

[vart]

int x;
    while (x!=3) {

x is not initialized

int y;
                while (y!=2) {

y is not initialized

[crimshaft]

THX vart that worked but why doesn't it work unless i define x, because isn't what i do whith the cin>> comand, right?

[Elysia]

But you are trying to compare x != 3 before you're reading anything into the variable.
I suggest using Visual Studio, if you can. It easily catches uninitialized variables errors.

[mcborn]

If you're making program that utilizes a menu selection system, use a case switch. you can google a tutorial, but it goes something like this.

switch (test) // where test is a declared int used to decide which case to execute
{
  case 1 : 
    // code for menu 1
    break;

  case 2 : 
    // code for menu 2
    break;

  default : 
    // action that occurs when any other case happens (i.e. user presses a number that is not a part of your menu)
}