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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Shape {
  9.     void draw() {
  10.         System.out.println("drawing...");
  11.     }
  12. }
  13. class Rectangle extends Shape {
  14.     void draw() {
  15.         System.out.println("drawing rectangle...");
  16.     }
  17. }
  18. class Circle extends Shape {
  19.     void draw() {
  20.         System.out.println("drawing circle...");
  21.     }
  22. }
  23. class Triangle extends Shape {
  24.     void draw() {
  25.         System.out.println("drawing triangle...");
  26.     }
  27. }
  28. class TestPolymorphism2 {
  29.     public static void main(String args[]) {
  30.         Shape s;
  31.         s = new Rectangle();
  32.         s.draw();
  33.         s = new Circle();
  34.         s.draw();
  35.         s = new Triangle();
  36.         s.draw();
  37.     }
  38. }
Success #stdin #stdout 0.06s 32568KB
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stdin
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Standard input is empty
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drawing rectangle...
drawing circle...
drawing triangle...
https://ideone.com/JrhbDn
language:
Java (HotSpot 12)
created:
3 years ago
visibility:
public

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