// Test program for the OS Math class.
class Main {

    function void main() {
        var char key;

        do Output.printString("wait test:");
        do Output.println();
        do Output.printString("Press any key. After 2 seconds, another message will be printed:");

        while (key = 0) {
	    let key = Keyboard.keyPressed();
        }
        while (~(key = 0)) {
            let key = Keyboard.keyPressed();
        }
        
        do Sys.wait(2000);

        do Output.println();
        do Output.printString("Time is up. Make sure that 2 seconds had passed.");
        
        return;
    }

}