Thread: 99 bottles of beer program question?

Hi All,

I am new to the c++ language and I am reading the book Jumping_into c++. In the Practice problems for chapter 5, Loops the first assignment states to write a program that prints out the entire lyrics to a full rendition of "99 Bottles of Beer". Which I did and it executes perfectly when I build and run the this code:

Code:

//Write a program that prints out the entire lyrics
//to a full rendition of "99 Bottles of Beer"


#include <iostream>


using namespace std;


int main()


{
    int x;
    for (x = 99; x > 0; x --)


    {
    cout << x << " " << "bottles of beer on the wall, ";
    cout << x << " " << "bottles of beer.\n";
    cout << "" << "Take one down, pass it around, ";
    cout << --X << " bottles of beer on the wall...," << endl;
    cout << "" << "If one of those bottles should happen to fall,\n" << endl;
    }

}

But when I tweak the code and change this line to:

Code:

cout << X-- << " bottles of beer on the wall...," << endl;

The program does not not execute correctly.

Why is that?

Thanks in advance.

Hi Salem,

I am doing x-- x(2)it does not work, and --x x(1) it works fine.

Why you ask?

Thanks Salem, and Elysia.
Understood thanks I will look into thread.