public class Schleifen{
 public static void main(String[] args) {
 
   int a = 1, b = 1;
   System.out.println();
 
   while (a < 10)
   {
      System.out.println("Schleifendurchlauf " + a);
      if (a == 9) System.out.println();
      a++;
   }
 
 
   do
   {
      System.out.println("Schleifendurchlauf " + b);
      if (b == 9) System.out.println();
      b++;
   }
   while (b < 10);
 
 
   for (int c = 1, d = 19, jahr = 2013; c < d; c++, d--)
   {
      System.out.print("Schleifendurchlauf " + c + " im Jahr " + jahr + ".");
      System.out.println("   c = " + c + ", d = " + d);
   }      
 
 }
  
}


		Scanner sc = new Scanner(System.in);
		
		
		while(sc.hasNext()) {
			
			String next = sc.next();
			
			System.out.println(next);
			
			if (next.matches("\\d+(\\.\\d+)?")) {
				System.out.println("Zahl!");
			}
			
			if (next.contentEquals("ende")) {
				System.out.println("Ende Gelände");
				break;
			}
			
		}
		
		//mit Rechnung und return
		
				Scanner sc = new Scanner(System.in);
		
		Double res = 0.0;
		while(sc.hasNext()) {
			
			String next = sc.next();
			
			System.out.println(next);
			
			if (next.matches("\\d+(\\.\\d+)?")) {
				System.out.println("Zahl!");
				
				res = res + Double.parseDouble(next);
				
			}
			
			if (next.contentEquals("ende")) {
				System.out.println("Ende Gelände: " + res);
				break;
			}
			
		}
		return res;