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  1. interface Answerer {
  2.     public boolean getAnswer();
  3. }
  4. class abstract AbstractAnswerer implements Answerer {
  5.     private boolean answer;
  6.     private boolean input1;
  7.     private boolean input2;
  8.     public AbstractAnswerer(boolean input1, boolean input2) {
  9.         this.input1 = input1;
  10.         this.input2 = input2;
  11.     }
  12.     @Override public final boolean getAnswer() {
  13.         this.answer = computeAnswer(input1, input2);
  14.         return this.answer;
  15.     }
  16.     protected abstract boolean computeAnswer(boolean input1, boolean input2);
  17.  
  18. }
  19. class ConcreteAnswerer extends AbstractAnswerer {
  20.     public ConcreteAnswerer(boolean input1, boolean input2) {
  21.         super(input1, input2);
  22.     }
  23.     @Override protected boolean computeAnswer(boolean input1, boolean input2) {
  24.         if(input1 && !input2) return true;
  25.         else return false;
  26.     }
  27. }
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https://ideone.com/vvAdW2
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
secret

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