android - Cast in java unsigned types -


i read in java there not unsigned data types. need send message:

a5a5   0008     f005     0001     00000003 uin16  uint16   uint16   uint16    uint32

i did this:

int prefijo =  0xa5a5;  int numbytes = 0x0008;  int tipo =  0xf005;  int id = 0x0001;  long estado =  0x00000003;

is correct way? , need push information in byte [] send device. how can do???

byte[] bytes = new byte[12];

thanks

  • short uses 16 bits
  • int uses 32 bits
  • long uses 64 bits

in case, using hexadecimal values, sign can ignored:

byte b=(byte)0x81; //1000 0001

it works no matter sign gets in decimal "interpretation".

said so, should use short first 4 numbers , int last one.


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