Ask: What next Android Bitwise data (bits with bit or etc.)?

Android Bitwise data processing mobile development

I read in your android program some data, but only some bits are needed to get, so to relate to the operation data bits, like the position and operations, position or operations, shift operation should be used. I only know that there is displacement operation Integer class data API, Integer.rotateLeft (), Integer.rotateRight (), etc., but do not know what API can be used for data bits with bit or operation.
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Reply:
...
Do not need good API, Java language on the support.

For example
a & 0x01
a | 0x0f
a ^ 0x10
Reply:
ok, I have to try, thank you!