doubt in assert...

[Ganeshkumar cheekati]

class AssertTest1
{
public static void main(String[] args)
{
 
int assert;
}
}

assert can be used as an identifier in java1.3 and lower versions.
but it is not allowed to use it higher of java1.4 versions because it is a keyword.

when i am compiling above code using java1.3

javac -source 1.3 AssertTest1.java

it is giving compilation error as

AssertTest.java:6: warning: as of release 1.4, 'assert' is a keyword, and may not be used as an identifier
(use -source 1.4 or higher to use 'assert' as a keyword)
int assert;
^

why?


[ November 06, 2008: Message edited by: Ganeshkumar cheekati ]

[Jayachandran Natarajan]

Hi Ganesh,

It looks like a warning, not an Error..

Regards
Jay
[ November 06, 2008: Message edited by: Jay ]

[Ganeshkumar cheekati]

what should we do to remove this warning ?
[ November 06, 2008: Message edited by: Ganeshkumar cheekati ]

[Ankit Garg]

well you are using a 1.4 compiler or higher. That compiler knows that assert is now a keyword. So when you use -source 1.3, it warns you (not gives error) that assert is now a keyword.

If you use actual 1.3 or older compiler, you will get no warnings.

To remove this warning you will have to change the name of the variable in main method (however than the question will be of no use)...

[Ganeshkumar cheekati]

eventhough i am using
javac -source 1.3 AssertTest1.java it is giving warning at compile time and finally i got output at runtime.

[Vijitha Kumara]

eventhough i am using
javac -source 1.3 AssertTest1.java it is giving warning at compile time and finally i got output at runtime

Warnings are not Errors. They are like well, Warnings !!! Just to keep you informed about some important things compiler won't held responsible?

[Jesper de Jong]

Jay, welcome to JavaRanch. Please check your private messages. You can see them by clicking My Private Messages.

[krishna pr]

Try Giving Java -version