public class a33 { //Schleifentypen
	public static void main(String a[]){
		
		System.out.println("2 while-Schleifen");

		// schleife mit while
		int i, j=4;
		while (j>=0){
			i=3;
			while (i>=0){
				System.out.print("i*j="+(i*j)+" ");
				i--;
			}
			j--;
		}
		
		System.out.println("\n \nfor-Schleife in While-Schleife");
		
		//for-schleife innerhalb von while
		
		j=4;
		while (j>=0){
			for (i=3;i>=0;i--){
				System.out.print("i*j="+(i*j)+" ");
				}
			j--;
		}
		
		System.out.println("\n \nwhile-Schleife in for-Schleife");
		
		//while-schleife innerhalb von for
		
		for (j=4;j>=0;j--){
			i=3;
			while (i>=0){
				System.out.print("i*j="+(i*j)+" ");
				i--;
			}
		}
		
		System.out.println("\n \n2x for-Schleifen");
		
		//2x for-schleife
		
		for (j=4;j>=0;j--){
			for (i=3;i>=0;i--){
				System.out.print(" i*j="+(i*j)+" ");
			}
		}
		
	}
}