Java How to Test Int, char, boolean the number of bytes?

            


C / C ++ can be sizeof
How to test Java. . .
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Do not need to test it
And C / C ++ different, java number of bytes int char boolean seemingly is fixed, with the hardware platform and system-independent
int, 32 bit 4 byte
char 16 bits 2 bytes
boolen, 8 bits 1 byte
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No public API it
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1L positive solution. Under JVM it is fixed. JNI under reference C / C ++ byte type.
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Thank you, I've found a way, JAVA there are macros, resolved. .
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quote 4th floor oldmtn reply:

Thank you, I've found a way, JAVA there are macros, resolved. .

java inside very much like to know how will the macro?
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java is fixed it