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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 Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		Parent p = new Parent();
  13. 		((Child) p).toString();
  14. 	}
  15. }
  16.  
  17. class Parent {
  18.  
  19. }
  20.  
  21. class Child extends Parent {
  22.  
  23. }
Runtime error #stdin #stdout #stderr 0.07s 380224KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
Exception in thread "main" java.lang.ClassCastException: Parent cannot be cast to Child
	at Ideone.main(Main.java:13)
https://ideone.com/kolTwa
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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