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The length of Chinese Characters in Oralce and the length of oralce Chinese Characters Generally, we use the String. length () method when verifying the String length at the Java layer. The returned length is the same in both Chinese and English. However, after a database is inserted, an error is reported (the length exceeds the limit ). Public class StringLength {public static void main (String [] args) {

MySQL uses cmd to query Chinese garbled characters and mysqlcmd to query garbled characters When viewing the MYSQL database table, CMD finds that Chinese data cannot be inserted and the Chinese characters are garbled. Method: Find the my. ini file in the mysql Installation File and add: default-character-set = utf8. The modified results are as follows: [Clien

Output four numeric characters and four characters Enter the code: /** Copyright (c) 2014, School of Computer and control engineering, Yantai University * All rights reserved. * file name: sum123.cpp * Author: Lin haiyun * Completion Date: July 15, January 8, 2015 * version No.: v2.0 ** Problem description: Write a function and enter a four-digit number, the four numeric

Javascript converts two-byte characters into single-byte characters and calculates the length. It is a javascript byte. Copy codeThe Code is as follows: function (s ){Return Math. ceil (s. replace (/[\ u4e00-\ u9fa5]/g, 'xx'). length/2 );} You can also use (/[^ \ x00-\ xff]/g, '**') to replace the double byte character '**'.(/[\ U4e00-\ u9fa5]/g, '**') Is it a unicode encoding that replaces Chinese

When we use system. Io. streamreader to read TXT files containing Chinese characters, we often read garbled characters (streamwriater writes text files There is a similar problem), the reason is very simple, that is, the file encoding (encoding) does not match the streamreader/writer encoding. To solve this problem, I wrote a class to obtain the encoding of a text file. In this way, we can create the corr

Int C = 0, Space = 0, num = 0, other = 0; Char s [] = "djwijfiw [email protected] # $! % "; // Scanf ("% s", S ); Char * STR = s; While (* Str! = '\ 0 '){ If (* STR> = 'A' * STR C ++; } Else if (* STR = ''){ Space ++; } Else if (* STR> = '0' * STR Num ++; } Else { Other ++; } STR ++; Printf ("% C", * Str ); } Printf ("English letters, spaces, numbers, and other characters: % d, % d \ n", C, space, num, other ); Enter a line of

Special characters of shell scripts and special characters of shell scripts1. # comment ,#! Besides, echo $ {PATH # *:} parameter replacement does not represent annotation, numeric conversion, and echo $(2 #101011) 2 .; command Line separator. Multiple commands can be written in one line. echo hello; echo there3.; the Code for copying the terminate case option is as follows:Case "$ variable" inabc) echo "\

Topic:Determine if a string has no repeating charactersImplements an algorithm that determines whether characters in a string are unique occurrencesSample ExampleGive "ABC", Return TrueGive "AaB", return FalseChallengeIf you don't use extra storage space, how does your algorithm change?Solving:Defining a collection is the simplest.Java Program: Public classSolution {/** * @paramstr:a String *@return: A Boolean*/ Public BooleanIsUnique (String

public class Test2 {public static void Main (string[] args) {TODO auto-generated Method Stubint abccount = 0;//number of English lettersint spacecount = 0;//Space Key numberint numcount = 0;//number of digitsint othercount = 0;//number of other charactersString str = "Hhhhh 666 yh4st66****";char[] ch = str.tochararray ();for (int i = 0; i if (Character.isletter (Ch[i])) {Determine if the letterabccount++;} else if (Character.isdigit (Ch[i])) {Judging whether the numbernumcount++;} else if (Chara

Recently, using the Rich text editor, when editing footage, found that the bulk of the message content has many Unicode encoded characters.It was later discovered that the problem of improper use of Gson.newString articleListStr = gson.toJson(articleList);//将素材上传到服务器，系统群发的消息，其实是服务器上的素材。String resposeString = HttpUtils.post(createNewsUrl,articleListStr);It turns out that Gson will convert HTML tags to unicode escape characters. Causes the mass content

The garbled text is converted into Chinese characters by the PHP and MYSQL databases !! Encoding: utf8, latin1 !! The garbled text is converted into Chinese characters by the PHP and MYSQL databases !! Encoding: utf8, latin1 !! ------ Solution ------------------ $ str; echoiconv (UTF-8, gbk, $ str); converts this garbled code into Chinese, which is obtained by PHP and MYSQL databases !! Encoding: utf8, lati

Php checks whether the string is full of Chinese characters or contains Chinese characters. $ Str = "'2014 Is "; If (! Eregi ("[^ \ x80-\ xff]", "$ str ")){ Echo "all Chinese "; } Else { Echo "not "; } 2. identify Chinese characters $ Str = "Chinese "; If (preg_match ("/[\

Tomcat Chinese garbled characters, mysql Chinese garbled characters Tomcat Tomcat Chinese garbled get request. Modify Add URIEncoding = 'utf-8' Tomcat Chinese garbled post version In addition, when uploading parameters, HttpURLConnection needs to be transcoded to url encoding. outStream.writeBytes("" + URLEncoder.encode(key, "utf-8") + "=" + URLEncoder.encode(value, "utf-8")); Mysql Chinese garbled

Some symbols cannot be directly transmitted in the URL. If you want to pass these special symbols in the URL, you need to use their encoding. The encoding format is % plus the characters' ASCII code, that is, a percent sign %, followed by the corresponding characters' ASCII (hexadecimal) code value. For example, the Space Encoding value is "% 20 ". If no escape character is used, the encoding will be treat

stringPlate="Yue BN1223"; if(Plate. Contains ("Yue Bn")) { //Get rid of the first three characters, the remaining 4 words embox for the digital side for the special vehicle BOOLBnum =true; Char[] Strsubccode =New Char[4]; if(Plate. Length = =7) {plate. CopyTo (3, Strsubccode,0,4); foreach(CharCinchStrsubccode) { if(!Char.isnumber (c)) {Bnum=false; Break; } }

I wrote a tool a long time ago. Now I have not developed software in Japan, so I almost forgot it. Let's share it with you today. I personally think this little tool is quite useful, because we Chinese people can easily remember those Japanese characters, but often cannot remember the corresponding Japanese pronunciation, so I wrote this little thing. Its functions include: 1. Search for Japanese characters