Ambiguity in interfaces

Question

interface A
{
  int a = 10;
}

interface B
{
  int a = 10;
}

class Access implements A, B
{
}

class Demo
{
  public static void main(String args[])
  {
    Access ac = new Access();
    System.out.println(ac.a);   // line #1
  }
}

Line #1 causes ambiguity. How do I remove it? Is it not possible to have same variable name of different interfaces?

just for clarification: "variables" in interfaces are by default `static final` i.e. "constants" — Marco Forberg, Jun 12 '13 at 11:57

score 2 · Answer 1 · answered Jun 12 '13 at 11:58

2

System.out.println( ((A)ac).a);   

or
System.out.println( ((B)ac).a);

If you have variables which are conflicting then you need to use resolution to access value of particular interface.

answered Jun 12 '13 at 11:58

Alpesh Gediya

3,706
1
25
38

score 2 · Accepted Answer · answered Jun 12 '13 at 11:59

2

You will have to reference the two variables as A.a and B.a respectively;

answered Jun 12 '13 at 11:59

tbsalling

4,477
4
30
51

Ambiguity in interfaces

2 Answers2