Here is an interesting question from Sun Guoqiao's mock exam 3, # 4
It is unclear why this is true:
"Non-static and static inner class can contain final static variable, which is the same as constant."
I thought non-static inner classes cannot contain static members?
Thank you for any insight.
----------
What is the output of trying to compile and run the following code?
(Select one correct answer)
-------------------
public class T004
{
public static void main(
String args[])
{
System.out.println(A.i << B.j); //1
}
public static class A {
final static int i = 2; //2
}
public class B { //3
final static long j = 3; //4
}
}
--------------------------
A: The code does not compile due to line //1.
B: The code does not compile due to line //2.
C: The code does not compile due to line //3.
D: The code does not compile due to line //4.
E: The code compiles and runs with output 16
Answer:
: E
Explanation:
: The code just compiles and runs fine with output: 16.
Non-static and static inner class can contain final static variable, which is the same as constant.You can access them directly without creating the instance of the context class.
