public class Doppelschleifen
{
    public static void tick(){
        for( int stunden = 0; stunden < 24; stunden++){
            for (int minuten = 0; minuten < 60; minuten++) 
            {

                for(int sekunden = 0; sekunden < 60; sekunden++){
                    System.out.println(stunden + ":"+  minuten + ":" + sekunden);
                    try{
                        Thread.sleep(100);
                    }
                    catch(InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }
    public static void einmaleins(){
        
        for(int a = 1; a<=10; a++){
            System.out.println("          " + a +"er reihe");
            
            for(int b = 1; b<=10; b++){
                System.out.println(a +"*"+ b +"="+ a * b);
            }
        }
        
    }
    
    public static int muster(int n){
        
        for(int a = 1; a<=n; a++){
            
            for(int b = 1;b <=a; b++){
            System.out.print("*");
        }
            System.out.println();
    }
    return n;
}
}