fork download
copy 
  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 Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		Animal animal1 = new Cat() ;
  13. 		animal1.speak() ;
  14. 		System.out.println( animal1.getClass().getName() ) ;
  15.  
  16. 		Animal animal2 = new Dog() ;
  17. 		animal2.speak() ;
  18. 		System.out.println( animal2.getClass().getName() ) ;
  19.  
  20. 		Animal animal3 = new Chihuahua() ;
  21. 		animal3.speak() ;
  22. 		System.out.println( animal3.getClass().getName() ) ;
  23. 	}
  24. }
  25.  
  26. interface Animal {
  27. 	public void speak() ;
  28. }
  29.  
  30. class Dog implements Animal {
  31. 	@Override
  32. 	public void speak() {
  33. 		System.out.println( "Bark." ) ;
  34. 	}
  35. }
  36.  
  37. class Chihuahua extends Dog {
  38. 	@Override
  39. 	public void speak() {
  40. 		System.out.println( "Yip." ) ;
  41. 	}
  42. }
  43.  
  44.  
  45. class Cat implements Animal {
  46. 	@Override
  47. 	public void speak() {
  48. 		System.out.println( "Meow." ) ;
  49. 	}
  50. }
Success #stdin #stdout 0.04s 2184192KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Meow.
Cat
Bark.
Dog
Yip.
Chihuahua
https://ideone.com/SXB9FP
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!