c tokenize string

Original: JSON string converted to JSON object, JSON object converted to string, value converted to string, string to valueMain content:I. JSON-related conceptsSecond, JSON string converted to JSON object (String-->json object)The

/* *list * @param list * @param the number of keys in Keylength-map * @return / public static object[] [] Listtoarray (list { Object [] array=new object[list.size ()][keylenght] for (int i=0;i { Array[i]=list.get (i). VALUES (). ToArray (); } return array; } Map Map Map.put ("1", "a"); Map.put ("2", "B"); Map.put ("3", "C"); Object[] [] array=new object[map.size ()][2]; Object [] Keys=map.keyset (). ToArray (); Object [] values=map.values (). ToArray (); Or /** *

In practice, the string series in c ++ -- function returns the local variable string (referencing the local string, the. c_str () function of the local string) When the function returns a string, we can define the return string an

How the data of string in Java is stored, the source code can be seen that the string data is stored in a member variable such as char[] value , the size of the char type is 2 bytes in JavaWe also know that the Unicode version that is commonly used now is UCS-2, which is to use 2 bytes to represent the Unicode version of a character, which is right, Java is using the UCS-2 standard, so the value in

Reference: C + + Primer 5th edition (1) 3.5.4 "C-style Character Strings" (2) 3.5.1 "Character Arrays Are Special" (3) 3.2.1 "Defining and Initializing ' string '" (4) 2.1.3 "Character and Character String literals" Several important concepts are: 1:string literal should be a "string constant" in Chinese, with an inte

String. format () format string, String format string 1. Several Common conversion Operators Description of the conversion operator % d Integer type (decimal) 99% f floating point type 99.99% s string type "mingrisoft" % c character type 'M' % B Boolean Type true % Percent

#pragma regular match phone number+ (BOOL) Isphonenumber: (NSString *) str{if ([str length] = = 0) {uialertview* alert = [[Uialertview alloc] initwithtitle:@ "Prompt" message:@ "Please enter mobile number" Delegate:nil cancelbuttontitle:@ "OK" Otherbuttontitles:nil, nil];[Alert show];return NO;}NSString *regex = @ "^ ((13[0-9]) | ( 147) | (15[^4,\\d]) | (18[0,5-9])) \\d{8}$ ";Nspredicate *pred = [Nspredicate predicatewithformat:@ "Self MATCHES%@", regex];BOOL IsMatch = [pred evaluatewithobject:s

The Java Runtime Environment has a string pool that is maintained by the string class. When executing the statement string s= "ABC", first look at whether the string "ABC" exists in the string pool, assign "ABC" directly to S if it exists, and, if not, create a new

NSString *str;//using stringWithFormat to generate a formatted stringstr = [NSString stringWithFormat:@"This is %@","John"]; NSLog (@"STR--->%@", str);//string lengths length;NSLog (@"The length of this string is%@", [str length]);//string comparison isequaltostring, return no (false), isequaltostring case-sensitiveBOOL isequal = [str isequaltostring:@"This is Jo

First, the formatting of the string 1. Processing of strings: trim (), LTrim (), RTrim () $name =trim ($_post[' name "), $name =trim ($_post[' password ')), $name =trim ($_post[' email '); The trim () function can strip the starting and ending spaces of a string and return the resulting string, by default the characters that are stripped are line feed and carri

Chinese websites generally choose two types of code: gbk/gb2312 or Utf-8. Each Chinese character in the GBK encoding occupies 2 bytes, as an example: $zhStr = ‘您好，中国！’;echo strlen($zhStr// 输出：12 utf-8编码下每个中文字符所占字节为3，例： $zhStr = ‘您好，中国！’;echo strlen($zhStr// 输出：18 So how do you calculate the length of this set of Chinese strings? One might say GBK to get the Chinese string length divided by the 2,utf-8 code divided by 3 isn't it OK? However, you have

This example describes the insertion of a substring method in a PHP string. Share to everyone for your reference, as follows: First look at a common online approach: Method One: String traversal function Str_insert ($str, $i, $substr) {for ($j =0; $j The above method uses the string traversal reorganization to implement the substring insertion function.

One, jquery string array to JSON stringvar str=[' 1 ', ' 2 ', ' 3 ';var jsontext= json.stringify (str);//Convert an object to a JSON stringStr=json.parse (Jsontext);//Parse a JSON string into an objectSecond, C#json string to String listUsing System.Web.Script.Serialization;JavaScriptSerializer js = new JavaScriptSeria

1. Delete the string at the specified location,Let str = "ABCDEFG"Let STR3 = str.substring (From:str.index (Str.endindex, Offsetby:-4))Print (STR3) output DEFGLet STR4 = str.substring (To:str.index (Str.startindex, Offsetby:4))Print (STR4) output ABCD2. Inserting a stringvar str = "ABCDEFG"Str.insert (contentsof: "* * * *". Characters, At:str.index (Str.startindex, Offsetby:3))Print (str) output ABC****DEFG3. Replacing stringsvar str = "ABCDEFG"Let st

/Remove the repeated words in the string and generate the index string. The string parameter is a string that has been segmented.//--------------------------------------------------Function getindextext ($ okstr, $ ilen =-1){If ($ okstr = "") return "";$ Ws = explode ("", $ okstr );$ Okstr = "";$ Wks = "";Foreach ($ ws

One, string literal valueString literals are a string of constant characters, which are represented by 0 or more characters in double quotes, and all string literals in C + + are automatically added by the compiler at the end of a null character for the compatible C language.String has no variable name, itself represents itself Copy Code code as follows:

Header file and namespace :: # Include Using namespace STD; Use the subscript type for traversal: String: The size_type type describes the type of the string type lower mark. So the method for traversing the string type is: For (string: size_type I = 0; I // The I type cannot be determined because the length is unkno

1. Stacks and heaps (heap) are places that Java uses to store data in RAM. Unlike C + +, Java automatically manages stacks and heaps, and programmers cannot directly set up stacks or heaps.2. The advantage of the stack is that the access speed is faster than the heap, second only to the registers directly in the CPU. However, the disadvantage is that the size and lifetime of the data in the stack must be deterministic and inflexible. In addition, the stack data can be shared, see 3rd. The advant

Original article: http://sarin.iteye.com/blog/603684 Let's look at an example. The Code is as follows:Java code Public class test { Public static void main (string [] ARGs ){ String STR = "ABC "; String str1 = "ABC "; String str2 = new string ("ABC "); System. Out. p

When I learned objective Java, I encountered the following problem: Avoid creating repeated objects. Think of a very basic problem: string. I also searched for the differences between the questions. At that time, I seemed to understand them. I 'd like to leave it unclear. So I searched the internet and found that this buddy wrote well. Therefore, it is easy to learn later. The combination of http://developer.hi.baidu.com/#/detail/49198505is easier to