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  1. // Abstract class Instrument
  2. abstract class Instrument {
  3.     // Abstract method to be implemented by subclasses
  4.     abstract void play();
  5.  
  6.     // Abstract method to be implemented by subclasses
  7.     abstract void tune();
  8. }
  9.  
  10. // Subclass Glockenspiel that extends Instrument
  11. class Glockenspiel extends Instrument {
  12.     @Override
  13.     void play() {
  14.         System.out.println("Playing the Glockenspiel.");
  15.     }
  16.  
  17.     @Override
  18.     void tune() {
  19.         System.out.println("Tuning the Glockenspiel.");
  20.     }
  21. }
  22.  
  23. // Subclass Violin that extends Instrument
  24. class Violin extends Instrument {
  25.     @Override
  26.     void play() {
  27.         System.out.println("Playing the Violin.");
  28.     }
  29.  
  30.     @Override
  31.     void tune() {
  32.         System.out.println("Tuning the Violin.");
  33.     }
  34. }
  35.  
  36. // Main class to test the program
  37. public class Main {
  38.     public static void main(String[] args) {
  39.         // Create instances of Glockenspiel and Violin
  40.         Instrument glockenspiel = new Glockenspiel();
  41.         Instrument violin = new Violin();
  42.  
  43.         // Call methods on the instances
  44.         glockenspiel.play();
  45.         glockenspiel.tune();
  46.  
  47.         violin.play();
  48.         violin.tune();
  49.     }
  50. }
  51.  
Success #stdin #stdout 0.07s 54640KB
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Playing the Glockenspiel.
Tuning the Glockenspiel.
Playing the Violin.
Tuning the Violin.
https://ideone.com/BusCJT
language:
Java (12.0.1)
created:
2 days ago
visibility:
public

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