Are the &, |, ^ bitwise operators or logical operators?

Question

Firstly I learnt that &, |, ^ are the bitwise operators, and now somebody mentioned them as logical operators with &&

Answer 1

The Java type byte is signed which might be a problem for the bitwise operators. When negative bytes are extended to int or long, the sign bit is copied to all higher bits to keep the interpreted value. For example:

byte b1=(byte)0xFB; // that is -5
byte b2=2;
int i = b1 | b2<<8;
System.out.println((int)b1); // This prints -5
System.out.println(i);       // This prints -5

Reason: (int)b1 is internally 0xFFFB and b2<<8 is 0x0200 so i will be 0xFFFB

Solution:

int i = (b1 & 0xFF) | (b2<<8 & 0xFF00);
System.out.println(i); // This prints 763 which is 0x2FB