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what is isPrimitive?

  Asked By: Anpu    Date: Oct 15    Category: Java    Views: 1009

By the explanation of isPrimitive in javadocs the following two lines of
code should print out true. What am I missing here?


Object bool = new Boolean("true");




2 Answers Found

Answer #1    Answered By: Barak Levi     Answered On: Oct 15

From the javadocs:

"There are nine predefined |Class| objects to represent the eight
primitive types and void. These are created by the Java Virtual Machine,
and have the same names as the primitive types that they represent,
namely |boolean|, |byte|, |char|, |short|, |int|, |long|, |float|, and

These objects may only be accessed via the following public static final
variables, and are the only |Class| objects for which this method
returns |true|."



should return true.

All in all it seems rather useless to me.

Answer #2    Answered By: Rosalie Holmes     Answered On: Oct 15

I agree with your assessment. I need to know if the returned value from a
method can be represented by a primitive type. I guess I will have to write
my own isPrimitive method using those types mentioned in the docs. Thanks
for the heads up.

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