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  1. class Catty {
  2.     public void printName() {
  3.         System.out.print("Catty");
  4.     }
  5. }
  6.  
  7. class Kitten extends Catty {
  8.     public void printName() {
  9.         super.printName();
  10.         System.out.print("Kitten");
  11.     }
  12. }
  13.  
  14. public class CatDemo {
  15.     public static void main(String[] args) {
  16.         Catty dolly = new Kitten();
  17.         dolly.printName();
  18.     }
  19. }
Compilation error #stdin compilation error #stdout 0s 0KB
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Standard input is empty
compilation info 
Main.java:14: error: class CatDemo is public, should be declared in a file named CatDemo.java
public class CatDemo {
       ^
1 error
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Standard output is empty
https://ideone.com/ih212M
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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