regarding wrapper classes

[Karthikeyan Balasubramanian]

Hi....
the scjp1.4 objective has getXXX() methods of wrpper classes...
wat does it refer to?
is there such questions in exam using that method?
please send some sample code for the same.
thanks in advance.

[Mani vannan]

Hi karthi,
getXXX refers to getInteger(..), getFloat(..) methods.
For more Refer class methods.
The test question will check the valid return type, correct assignment, input argument.

[Karthikeyan Balasubramanian]

when i am trying to print to use....

Integer.getInteger("os.name"); etc.,,,
the value is null always.

similar for Long.getLong("os.name"); and also for other properties...

please tell me the proper use of these methods...