Help With switch-case

[HugeBob]

Hi All,

I'm studying for the SCJP 6 exam and I've run across an oddity.
Here's the code:

public class SwitchCheck {
public static void main(String [] args) {
final int a = 1, final int b = 2;

int x = 0;
switch (x) {
case a:
break;

case b:
break;
}
}
}

Why does this not work? Both a and b are final and receive their
value where they should. a and b are known at compile time. Yet I
get an error for the "case b:" statement.

 

[Eric Sosman]

Hi All,

I'm studying for the SCJP 6 exam and I've run across an oddity.
Here's the code:

public class SwitchCheck {
public static void main(String [] args) {
final int a = 1, final int b = 2;

int x = 0;
switch (x) {
case a:
break;

case b:
break;
}
}
}

Why does this not work? Both a and b are final and receive their
value where they should. a and b are known at compile time. Yet I
get an error for the "case b:" statement.

Your compiler appears to be broken; get a new one.
Mine gives no error on `case b:', having already bailed
out on an earlier line:

<identifier> expected
final int a = 1, final int b = 2;
^
1 error
BUILD FAILED (total time: 0 seconds)

 

[Roedy Green]

I'm studying for the SCJP 6 exam and I've run across an oddity.
Here's the code:

public class SwitchCheck {
public static void main(String [] args) {
final int a = 1, final int b = 2;

int x = 0;
switch (x) {
case a:
break;

case b:
break;
}
}
}

Why does this not work? Both a and b are final and receive their
value where they should. a and b are known at compile time. Yet I
get an error for the "case b:" statement.

You have a comma where you should have a semicolon. This is Java not
C++.

To sort out what you can use for case labels, see
http://mindprod.com/jgloss/switch.html
--
Roedy Green Canadian Mind Products
http://mindprod.com

"If everyone lived the way people do in Vancouver,
we would need three more entire planets to support us."
~ Guy Dauncey (born: 1948 age: 61)