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  1. //. reusing/SpaceShipControls.java
  2.  
  3. public class SpaceShipControls {
  4.     void up(int velocity) {}
  5.     void down(int velocity) {}
  6.     void left(int velocity) {}
  7.     void right(int velocity) {}
  8.     void forward(int velocity) {}
  9.     void back(int velocity) {}
  10.     void turboBoostO() {}
  11. }
  12.  
  13.  
  14.  
  15.  
  16.  
  17. public class SpaceShip extends SpaceShipControls {
  18.  
  19.     private String name;
  20.     public SpaceShip(String name) { this.name = name, }
  21.     public String toStringO() { return name; }
  22.     public static void main(String[] args) {
  23.  
  24.         SpaceShip protector = new SpaceShip("NSEA Protector");
  25.         protector.forward(100);
  26.     }
  27. }
  28.  
  29. 		 //////////////////////Delegation//////////////////////
  30.  
  31. public class SpaceShipDelegation {
  32.  
  33.     private String name;
  34.     private SpaceShipControls controls = new SpaceShipControls();
  35.  
  36.     public SpaceShipDelegation(String name) {this.name = name;}
  37.  
  38.     public void back(int velocity) { controls.back(velocity);}
  39.  
  40.     public void down(int velocity) { controls.down(velocity);}
  41.  
  42.     public void forward(int velocity) { controls.forward(velocity);}
  43.  
  44.     public void left(int velocity) { controls.left(velocity);}
  45.  
  46.     public void right (int velocity) { controls.right(velocity);}
  47.  
  48.     public void turboBoostO() {controls.turboBoostO();}
  49.  
  50.     public void up(int velocity) { controls.up(velocity);}
  51.  
  52.     public static void main(String[] args) {
  53.  
  54.         SpaceShipDelegation protector = new SpaceShipDelegation("NSEA Protector");
  55.         protector.forward (100);
  56.     }
  57. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
compilation info 
Main.java:20: error: ';' expected
    public SpaceShip(String name) { this.name = name, }
                                                    ^
1 error
stdout 
Standard output is empty
https://ideone.com/mkvkEF
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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