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switch statement

 
Ranch Hand
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why we are getting a compile time error? at case b statement
final int a = 1;
final int b;
b = 2;
int x = 0;
switch (x) {
case a: // ok
case b: // compiler error


any help can be appriciated
 
lowercase baba
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what exactly is the compiler error? it is chock-full of information that helps you isolate the problem.

there is not enough code here for me (or anyone else) to compile it themselves, so we can't really help you without that info.
 
sumaraghavi ragha
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hi

This is a code snippet from K&B page no 324 .

they are trying explain about the switch statement variable can't be final variable.But variable a is also a final variable so i am confusing with that

thanks
 
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hi sumaraghavi ragha
is 'b' a compile time constant?
 
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ERROR: case expressions must be constant expressions

SOLUTION: final int b = 2;

V
 
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'b' is NOT a compile time constant:
final int a = 1; // compile time constant

final int b; // NOT a compile time constant
b=2; //
 
Java Cowboy
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The exact same question was asked in this recent thread.
 
sumaraghavi ragha
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Thanks all
 
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