Bitwise operators for Java

This article refers to: Java bitwise operators

The bitwise operator of Java is used to manipulate a single "bit" (bit) in an integer base data type, which is the generation of a binary bit. And we know that bits are 0 and 1, so the bit operation is the basic operation of the data. If the base type is a numeric value of char, Byte, or short, it is converted to the int type, and then the shift is processed

Bitwise operators for Java

The bitwise operator performs a Boolean algebra operation on the bits corresponding to the two parameters and eventually produces a result. This operation is have with (&), non (~), or (|), XOR, or (^). We know that the units "bit" (bit), that is, the binary bits, are 0 and 1, xor (^) may be more complex points, two operands of the bit, the same result is 0, different results are 1. So the basic logic is like this.

1&1→11&0→0~1→0~0→11|1→11|0→11^0→1 (1 is 01,0 00, then the result is 01, or 1) 1^1→0

The shift operator for Java

The shift operator in Java is nothing more than a displacement of the binary.

The << is to move left, that is, all the binary moves to the left one bit, 0010 0000 << 1 equals 0100 0000

Make >> move right, that is, all binary moves one bit to the right, 0010 0000 >> 1 equals 0001 0000.

You can try the following example, the integer type is also turned into binary to calculate:

class Test{ Public Static void Main(String[]Args){intNumInt1= 3; intNumInt2= -3;System.Out.println(NumInt1<<1);System.Out.println(NumInt1>>1);System.Out.println(NumInt2<<1);System.Out.println(NumInt2>>1);}  }/* The result of the output is as follows (www.breakyizhan.com) 6---> 0000 0011<<1, changed to 0000 01101---> 0000 0011>>1, changed to 0000 0  The 1 behind the 001...1 is topped out, so the result is 1-6--and 1111 1101<<1, which becomes 1111 1010 take the reverse +1= 0000 0110-6-2--1111 1101>>1, Change to 1111 1110 reverse +1= 0000 0010-2 */

Of course, there are Java ternary operators, this part of the function and if-else a bit similar, more details can be seen:
Ternary Operators for Java | Break Easy Station

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Bitwise operators for Java