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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. 	class B{}
  11.  
  12. 	public class A extends B{
  13. 		A obj = new B();
  14. 	}
  15.  
  16. 	public static void main (String[] args) throws java.lang.Exception
  17. 	{
  18.  
  19. 	}
  20. }
Compilation error #stdin compilation error #stdout 0.07s 380224KB
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stdin
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Standard input is empty
compilation info 
Main.java:13: error: incompatible types
		A obj = new B();
		        ^
  required: Ideone.A
  found:    Ideone.B
1 error
stdout
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Standard output is empty
https://ideone.com/W4XA4c
language:
Java (12.0.1)
created:
8 years ago
visibility:
public

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