Float buffer FloatBuffer in javaI. Overview:
java.lang.Object java.nio.Buffer java.nio.FloatBuffer
public abstract class FloatBuffer extends Buffer implements Comparable
This class defines four types of operations on the float Buffer:
Read
basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Gets the value of the array Array_keys ($arr), gets the key name of the array array_flip ($arr), and the values in the array are exchanged with the key
Basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Get the value of an arrayArray_keys ($arr); Gets the key name of the arrayArray_flip ($arr); the values in the array are exchanged with the key names (if
(1) Conversion between data type and byte array
The data transmitted directly in the string is a byte array bytearray, which is an array of type uint8.
The data of a float type can be represented by 4 bytes, the data of type Double is 8 bytes, and
Php array function Learning Record 2 1. check whether the given key name or index exists in the array -- array_key_exists
Usage: array_key_exists ($ key (mixed), $ input (array) returns TRUE and FALSE
$input_array=array("1"=>"java","op"=>"R","act"
Common PHP array functions
I. basic functions of array operations
Key name and value of the array
Array_values ($ arr); obtain the array value array_keys ($ arr); obtain the array key name array_flip ($ arr ); values in the array are exchanged
An array is a variable that can store a group or a series of values. * Arrays are a basic data type. Array functions can also implement data structures such as stacks and queues. Subscript: the identifier of an array, that is, the code of a string
Subscript: The identifying name in the array is the code of the string or integer in the array
Several index values in an array are referred to as several-dimensional arrays.
Index value: An index is a structure that sorts the values of one or more
Original URL: http://www.xuebuyuan.com/988752.htmlThe conversion of Java byte to other data types is mainly used for encoding and decoding binary data, mainly for network transmission, reading and writing binary files, data communication between
basic functions of array manipulation
The key name and value of the array
Array_values ($arr); Gets the value of the array Array_keys ($arr); Gets the key name of the array array_flip ($arr); The values in the array are exchanged with the key
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