package Uebung;

interface testen{
	public boolean test(int i);
}

public class Test1 {

	public static void main(String[] args) {

		testen test = zahlen -> {
			return (zahlen>=0)? true : false;
			};
		System.out.println(test.test(5));
		System.out.println(test.test(-5));

	}
}