|
| & |
AND
1 & 1 == 1
1 & 0 == 0
0 & 1 == 0
0 & 0 == 0
|
| | |
OR
1 | 1 == 1
1 | 0 == 1
0 | 1 == 1
0 | 0 == 0
|
| ^ |
XOR
1 ^ 1 == 0
1 ^ 0 == 1
0 ^ 1 == 1
0 ^ 0 == 0
|
| ~ |
Ones complement, inversion operator
~0 == 1
~1 == 0
~00110010 == 11001101
|
| << |
Left shift
Shifts x to the left by y bits. The high order bits are lost while zeros fill the right bits.
x << y
For example:
11101101 << 2 == 10110100
byte val = (byte)0xed;
byte val_shift = (byte)(val<<2);
String a = Integer.toBinaryString(256 + (int) val);
System.out.println(a.substring(a.length() -8));
String b = Integer.toBinaryString(256 + (int) val_shift);
System.out.println(b.substring(b.length() -8));
|
| >> |
Right shift signed
The low order bits are lost while the sign bit value (0 for positive numbers, 1 for negative) fills in the left bits.
x >> y
For example:
11101101 >> 2 == 11111011
byte val = (byte)0xed;
byte val_shift = (byte)(val>>2);
String a = Integer.toBinaryString(256 + (int) val);
System.out.println(a.substring(a.length() -8));
String b = Integer.toBinaryString(256 + (int) val_shift);
System.out.println(b.substring(b.length() -8));
|
| >>> |
Right shift unsigned
Shifts x to the right by y bits. The low order bits are lost while zeros fill in the left bits regardless of the sign.
This operator ONLY works for 32- and 64-bit values.
x >>> y
For example:
11111111 11111111 11111111 11111111 >>> 24 ==
00000000 00000000 00000000 00000000
int a = -1;
a = a >>> 24;
System.out.println(a);
|
