About Question enthuware.ocpjp.v7.2.1521 :

[The_Nick]

Hi,
What do you mean by: "The instanceOf operator does not take of the outer instance into consideration"? Could you please make an actual example?
Thanks in advance.
The_Nick.

[admin]

Code: Select all

public class TestClass {
  class Inner{
  }
  public static void main(String[] args){
	TestClass.Inner in = new TestClass().new Inner();
	System.out.println(in instanceof TestClass.Inner); //instanceof has no relation to the outer TestClass instance.
  }
}

[Huib valstar]

Is next statement true: Non-static inner class cannot have static members.

Inner classes can always have final static fields with a value, which is a constant and a member! So the above option is never true. Without a value it is not allowed in a non-static inner class and then it is Ok.

[admin]

No, the statement is not true.

[fariz.siracli]

hi guys.
i dont understand following.
- Anonymous classes cannot be static
why ? for example, isn't it right static anonymous class?
class MyClass {
static Runnable runnable1 = new Runnable() {

@Override
public void run() {

}
};

}
Thanks in advance

[admin]

No, it is not. The variable runnable1 is static, not the anonymous class.