class Fehler {
    public static void main(String[] args) {
        System.out.println("Hi!");
        int erste_zahl = 2
        int 2teZahl = 3;
        int dritte-zahl = 4;
        int vierte zahl = 5;
    int s = 5;
    int t  = 2;
    
    
    s - t = int result;
        boolean a = 1;
        boolean b = true;
    boolean c = false;
    boolean d = b - c;



        char one = '1';
        char true = 't';
        char falsch = 'false';
        double x = 4.5;
        dauble y = 3.; 
        double z;
        double x2 = .0;
        double _3	= x*y;
        double res =  x*z;
        System.out.println("Bye!");

}