Interface

[Moon Winter]

Question 6.
An Interface can never be private or protected.
Answers
True
False
The answer given is False. Can anyone give out an example which an interface is private or protected (including inner interface).
Thanks!
Moon

[Muhammad Farooq]

Only an interface declared in a class can be declared private or protected, thats why the answer is false. The word "NEVER" is used in the question.
HTH
--Farooq
e.g.
===============================================================
class InterfaceTest{
private interface privateinterface{}
protected interface protectedinterface{}
}
===============================================================
[This message has been edited by Muhammad Farooq (edited September 02, 2001).]

[Metal Zhang]

Please try to compile and run this code:

public class Test8{
private interface Foo{
int a = 10;
}
public static void main(String args[]){
System.out.println(Foo.a);
}
}

The output is:
10
I think it is a good example to prove the question.And if you try to compile this code:

private interface Foo{
int a = 10;
}
public class Test8 implements Foo{
public static void main(String args[]){
System.out.println(a);
}
}

The compiler will complain:
Test8.java:1: The type type Foo can't be private. Package members are always accessible wi
thin the current package.
private interface Foo{
^
1 error

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Java lover from hell!