Issues with switch statement

[Tiny_trixer]

I'm just playing around with C++ as a preperation for coming assignments and well, exams. And I'm a little stuck with the switch statements. I've done this simple switch just to test the functions:

#include <iostream>

using namespace std;

int main(void)
{
	char input;
	
	cout << "\nChoose function.\n1. Test 1. \n2. Test 2. \n3. Test 3 \n4. Exit" << endl;

	cin >> in;

	do
	{
	switch(in)
	{
	case '1':
		cout << "test 1" << endl;
		break;
	case '2':
		cout << "test 2" << endl;
		break;
	case '3':
		cout << "test 3" << endl;
		break;
	case '4':
		cout << "Exiting program now" << endl;
		break;
	default:
		cout << "Not possible!" << endl;
		break;
	} // end switch
	} // end do
	while(in != '4');

	system("PAUSE");
	return 0;
} // end main

Basicly, I've just done the same thing I would've done in a Java program... And this makes the program go all funky. When I compile and build I get the choices and all that, but when I choose 1, 2 or 3 the program just outputs "test x" in an ever ongoing loop. I have to manually stop it from running.

So what have I done wrong? Where is the code that says "Run this selected part until infinity"? Tried removing the do-while, but then it just output the case statement in like 2 seconds and exited. What I would like is to output the thing in the case and then return to the menu.

[thelamb]

Your cin >> in; (request the user for input) is outside the do...while loop.
So you ask input once and then it's continuously 'executing' the switch case with the same 'in' value.

[Tiny_trixer]

Lol. That was a lame error to do. :P But thank you for the clarification!