java - Convert Byte[] to int -

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i have method converts signed or non-signed byte int, doesn't return supposed return. can point out issue in below code?

public int convertbytetoint(byte[] b){               int value= 0;     for(int i=0;i<b.length;i++){                     int n=(b[i]<0?(int)b[i]+256:(int)b[i])<<(8*i);                      value+=n;     }              return value;        }

edited :

i'am actualy reading wav file in order calculate snr. returned value conversion should give beetween 0 , 255. application should compare 2 waves file, on orignal 1 , other modified , calculate snr .

are writing code exercise, or looking way it? if latter, suggest using bytebuffer. has getint method should trick.


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