My Java operator understands that

Basic concepts

Original code, anti-code, complement just remember these words is enough

1. The highest bit of binary is the sign bit: 0 for positive, 1 for negative

2. Positive source code, anti-code, complement all the same

3. Negative number of the anti-code = Its original code sign bit is unchanged, the other bits take the reverse

4. The complement of negative number = Its anti-code +1

5.0 of the counter code, the complement is 0

The numbers in 6.java are signed.

7 in the computer operation, are all in the form of a complement of the operation

8 The complement is reversed (the high is 1 to take the counter), the high must also take counter

The opposite is called

2&3 called with

2|3 called or

2^3 is called XOR or

1>>2 called arithmetic right shift low overflow, sign bit invariant, and sign bit to fill overflow high

1<<2 called arithmetic left shift sign bit unchanged, low fill 0

1>>>2 is called logical right shift low overflow, high fill 0

My Java operator understands that