fork download
copy 
  1. class A{
  2. 	int num = 10;
  3. 	void func(){
  4. 		num++;
  5. 	}
  6. }
  7.  
  8. class B extends A{	//親：A 子:B
  9. 	//static
  10. 	int num = 30;
  11. 	//static
  12. 	void func(){
  13. 		num++;
  14. 	}
  15. }
  16.  
  17. class Test {
  18. 	public static void main (String[] args){
  19. 		A obj = new B();
  20. 		obj.func();
  21. 		System.out.println(obj.num);
  22. 	}
  23. }
Success #stdin #stdout 0.09s 52636KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
10
https://ideone.com/wSYhNL
language:
Java (HotSpot 12)
created:
2 days 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!