CountDown

package methods;

public class CountDown {

	public static void main(String[] args) {
		start(-4);

	}
	private static void start(int number){
		if(number>=0){
		while(number>=0){
			System.out.println(number);
			number--;
			}
		System.out.println("Go!");
		}
		
		if(number < 0){
				System.out.println("Start failed!");
			}
	}
}