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class inside interface

kanchan chaudhary

Joined: Jun 06, 2001
Posts: 28
Which of the following are true about the class defined inside an interface
1. it is not possible in the java Laungage.
2. The class is always public.
3. The class is always static.
4. the class methods cannot call the methods declared in the interface.
5. the class methods can call only the static methods declared in the interface
Angela Lamb
Ranch Hand

Joined: Feb 22, 2001
Posts: 156
1. False - it is possible. See JLS section 9.1.3.
2. True - according to JLS, "all interface members are implicitly public."
3. True
4. True - since the class is static, it can't make calls to non-static methods.
5. False - static methods may not be declared in an interface.
It is sorta covered in the JavaRanch Style Guide.
subject: class inside interface