what value of 2

Brief description: ArrayList Remove method, if the parameter of remove () is int type, then regardless of the type of ArrayList is any type, is to remove the corresponding subscript object. I. Type is non-integer arraylist Non_intarr = new

Ext: http://www.cnblogs.com/ye-moooooo/p/4601189.html What is the byte alignment, and why should I align it?The memory space in modern computers is divided by byte, theoretically, it seems that access to any type of variable can begin at any

One, what is aligned, and why to align:1. The memory space in modern computers is divided by byte, theoretically, it seems that access to any type of variable can start at any address, but the reality is that access to a particular variable is often

Original source: http://blog.csdn.net/sujunzy666/article/details/18732153 The summary is very good, understand thoroughly. The end of the article I made a picture, a look at it, this problem on the Internet to speak a lot, but did not put the

Original address Mathematics is the foundation of computer technology, linear algebra is the basis of machine learning and deep learning, the best way to understand the knowledge of the data I think is to understand the concept, mathematics is not

Suppose you have some foundation for PROTOBUF, no use, no relationship.Use Protobuf 3.5.0 to write proto files here Syntax = "Proto3"; Package tutorial; Option Java_package = "Com.spy.test.protobuf.model"; Option Java_outer_classname =

Memory Alignment 1. Concept Alignment is related to the location of the data in memory. If the memory address of a variable is exactly the integer multiple of its length, he is called natural alignment. For example, under a 32-bit CPU, assuming an

Reproduced in: https://www.cnblogs.com/ye-moooooo/p/4601189.html related to __align (n) __align The __align keyword instructs the compiler to align variables on n-byte boundaries. __align is a storage class modifier. It does not affect the type of

javascript| Script Recently on the Internet to see an article, said JavaScript = C+lisp, so think about the problem, since JavaScript contains some of the lisp of the lineage, then use JavaScript to implement a Lisp-like AI script what will it look

Structure in vivo allocation problem (EXT) 1) sizeof can also evaluate a function call, and the result is the size of the return type of the function, and the function is not called. (2) Finally understand the structure of struct in the allocation

First, decode functionMeaning explanation:1, Decode (condition, value 1, return value 1, value 2, return value 2,... Value N, return value N, default value)The function has the following meanings:IF condition = value 1 ThenRETURN (translation value 1

Meaning explanation:Decode (condition, value 1, return value 1, value 2, return value 2,... ) Value N, return value N, default value)The function has the following meanings:IF condition = value 1 Thenreturn value 1ELSEIF condition = value 2

First, the conceptAlignment is related to the location of the data in memory. If the memory address of a variable is exactly the integer multiple of its length, he is called natural alignment. For example, under a 32-bit CPU, assuming an integer

The SQL statements are divided into:Use test: Represents a switch to the test database when executing SQL statements1. InsertSyntax: INSERT into table name (Field 1, Field 2,.......) VALUES (Value of field 1, Value of field 2,.....)Example:

SQL Server index maintenance2012-03-08 00:30:09|  Category: Default Categories | Tags:SQL Server Index | Report | Font size Subscription Pages & Extents (pages and extents)The most basic data storage unit for SQL Server 2000 is the 8K

The datalength () function returns a number of bytes used to manage the value, which helps to reveal some interesting differences between different data types.When the varchar type is passed to the datalength () and Len () functions, they return the

LEN: Returns the number of characters (not bytes) of the specified string expression, which does not contain trailing spaces.Datalength: Returns the number of bytes used to represent any expression.Example 1: (Same, return result is 5):

Function pointer I. function pointer Definition   // Function declaration: declare what function I am. // calculate the sum of two numbers and // function type: int (int x, int y) // that is: I am a function that returns an integer and has two

※※※ excerpted from http://www.cnblogs.com/salam/archive/2010/10/20/1856793.htmlLinearLayout is a linear layout control that contains child controls that are arranged in a horizontal or vertical manner, with all widgets or other containers arranged

Flex is a flexible layout that controls the width, height, or remaining space of internal elements to accommodate different display devices and different screen sizes, while truly achieving an adaptive effect.The flex layout is very different from