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  1. interface A{
  2. 	default void foo(){
  3. 		System.out.println("A");
  4. 	}
  5. }
  6.  
  7. interface B{
  8. 	default void foo(){
  9. 		System.out.println("B");
  10. 	}
  11. }
  12.  
  13. class C implements A, B{
  14. }
  15.  
  16. class Ideone
  17. {
  18. 	public static void main (String[] args) throws java.lang.Exception
  19. 	{
  20. 		C c = new C();
  21. 		c.foo();
  22. 	}
  23. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:13: error: types A and B are incompatible;
class C implements A, B{
^
  class C inherits unrelated defaults for foo() from types A and B
1 error
stdout
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Standard output is empty
https://ideone.com/6aiV76
language:
Java (12.0.1)
created:
3 years ago
visibility:
public

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