1   /** 
2    * 183.592 Programmierpraxis TU Wien WS2014/15 H.Moritsch
3    * Algebraische Formeln
4    */
5   public class Algebra {
6       public static void main(String[] args) {
7   
8           int a;
9           int b;
10  
11          a = 7;
12          b = 4;
13  
14          // arithmetische Ausdrücke
15  
16          System.out.println(( a - b ) * ( a + b ));
17          System.out.println( a*a - b*b );
18          System.out.println(( a + b ) * ( a + b )) ;
19          System.out.println( a*a + 2*a*b + b*b );
20  
21      }
22  }
23