The AVA median operator includes:&|~^>>>>>
OneThe first step is to figure out the number of digits involved in the operation:(Lenovo: Java's 8 basic types: Byte,short, char, int, Long,float,double,boolean.Fixed length in memory (bytes): 1 2 2 4 8 4 8
Java to byte +-*/>> >>> This fact can lead to a variety of problems:Suppose we want to do the following byte operation: 1111 1000 to the right 1 bits, then 0000 0001 or operation, 0111 1101. The intuitive writing procedure is as follows:byte B = 0xf8
1. Left shift operatorThe left shift operator 1) Its general format is as follows:Value NUM Specifies the number of bits to shift the value to move.Left-shift rule remembers only one point: Discard the highest bit, 0 the minimum bitIf the number of
The object of the shift operator operation is the binary bit, which can be used to handle int integers with the shift operator alone.
Operator
Meaning
Example
Left-shift operator, moves the left-hand
1. Left shift operatorThe left shift operator 1) Its general format is as follows:Value NUM Specifies the number of bits to shift the value to move.Left-shift rule remembers only one point: Discard the highest bit, 0 the minimum bitIf the number of
How to use the 74ls595 (8-bit output latch shift register)
7
Recommended
The use of single-chip microcomputer and 74ls595 (8-bit output latch shift register)
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74595 Data End:
QA--QH: Eight-bit parallel output, can directly
The bitwise shift operator is an operation that moves the data as a binary number, moving it to the left or right several bits. The bit shift operators are divided into left and right shifts, both of which are binocular operators. The first
public class Datatypechangehelper {
/**
* Converts a single byte of Byte to a 32-bit int
*
* @param b
* Byte
* @return Convert result
*/
public static int Unsignedbytetoint (byte b) {
return (int) B & 0xFF;
}
/**
*
Http://soft.chinabyte.com/database/195/11553695.shtmlThe Java shift operators are all about these three kinds of:> (with symbols right) and >>> (unsigned Right shift).1. Left shift operatorThe left shift operator 1) Its general format is as
Analysis of 1.ByteBuffer
http://blog.csdn.net/ya_1249463314/article/details/79271333
2. What is a heap byte buffer
The Heapbytebuffer heap byte buffer is the allocation of buffers to the heap heap in the JVM, whose implementation itself is a byte
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