Howdy --
Hmmm... I wonder if they were using the
word "const" to mean "constant", which in the Java sense means 'static and final'. Inner classes may not declare static members, UNLESS they are compile-time constants. So, an anonymous class must NOT define a static member, UNLESS that static member is also final, and has a value that can be resolved at compile-time.
To that means an anonymous class CAN have a constant.
For example, the following will compile:
import java.io.*;
public class Boof {
public static void main(
String[] args) {
Serializable r = new Serializable() {
static final int x = 3; // THIS IS OK
}; // close inner class
} // close main
} // close class
But the following is NOT allowed:
import java.io.*;
public class Boof {
public static void main(String[] args) {
Serializable r = new Serializable() {
static int x = 3; // THIS IS NOTOK
}; // close inner class
} // close main
} // close class
And the following is also NOT allowed:
import java.io.*;
public class Boof {
public static void main(String[] args) {
Serializable r = new Serializable() {
static final int x = (int) Math.random(); // THIS IS NOT OK, even though it is final
}; // close inner class
} // close main
} // close class
cheers,
Kathy
"One
test to rule them all. One test assigned them. One test to bring them all and in Prometric grind them."
