how to read file

It is generally read or written in a serial way. In general, the input stream is used to read the contents of the file into memory, and the output stream is used to write out the information in memory to the file. These classes are located under the

1 Packagecom;2 3 ImportJava.io.*;4 5 /**6 * Hello world!7 *8 */9 Public classReadFileTen { One Public Static voidMain (string[] args) { AString fileName = "F:/aa.json"; -String result =ReadFile (fileName); - System.out.println (result); the

Original address: http://www.cnblogs.com/lovebread/archive/2009/11/23/1609122.html [Java] Read file method encyclopedia 1, read the contents of the file by byte 2, read the contents of the file by character 3, read the contents of the file by line 4,

Today, when the server does publish + subscribe, there is a problem, as follows:The process could not read the file "D:\Program Files\Microsoft SQL Server\mssql10_50.mssqlserver\mssql\repldata\unc\ because of operating system error 3 User-n18o5dgqu6_

Transfer from http://www.cnblogs.com/xianghang123/archive/2011/12/06/2277602.html This technical support guide mainly deals with: ASCII, binary, and MAT files.To get a complete list of functions that can be used in MATLAB to read and write various

With the gradual integration of mobile terminals and PCs, more and more websites are implementing a policy to ensure the reliability and traffic quality of users, that is, sending mobile phone verification codes to users' mobile phones. At Wooyun,

Use this command bin/Hadoop fs-cat to read the file content on HDFS to the console. You can also use HDFS APIs to read data. As follows: Import java.net. URI;Import java. io. InputStream;Import org. apache. hadoop. conf. Configuration;Import org.

Introduction to PHP fread functions string fread (int handle, int length) Fread () reads up to length bytes from a file pointer handle. The function stops reading a file when it has read up to a maximum length of bytes, or when it reaches EOF, or

Copy CodeThe code is as follows: $fh = fopen ($path, "r+"); if (Flock ($FH, LOCK_EX)) {//Add write Lock $old _content=json_decode (Fread ($fh, FileSize ($path)), true); $old _content= $old _content. $new _content; Ftruncate ($fh, 0); Truncates a

A directory has 10,000 txt files, now want to randomly read 100 of them, how can it be implemented? Reply content: A directory has 10,000 txt files, now want to randomly read 100 of them, how can it be implemented? Iterate through all the

Key code: /// /// get the file size-byte /// /// file path // / file size Public static long getsize (string filepath) {long _ size = 0; try {If (file. exists (filepath) {filestream _ stream = new filestream (filepath, filemode. open); _ size =

Suppose there isData.txtFile, which contains the following content: Fry: One Jillion dollars. [Everyone gasps.] Auctioneer: Sir, that's not a number. Read and test data. The following is the data read operation based on data.txt: # Include #

  Address: http://www.cnblogs.com/hongfei/archive/2011/11/23/2260853.html Reprinted please indicate the source CodeZONE: 1 2 $ File_path = "File.txt "; 3 If ( File_exists ('File.txt ')){ 4 $ Fp = Fopen ("$ File_path ","

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// The getresource method uses UTF-8 to encode the path information. When there are Chinese characters and spaces in the path, it will convert these characters, the obtained path is often not the actual path we want. Here, we call the decode method

Label: style blog color Io file data Div line 1 Try { 2 Inputstream is2 = Getresources (). openrawresource (r.raw.info ); 3 Inputstreamreader isr2 = New Inputstreamreader (is2, "UTF-8" ); 4 Bufferedreader bfr2 = New Bufferedreader (isr2 ); 5

When can I end reading a file using fstream. First, compare the current position with the object length, and then the fstream cannot directly obtain the object length. You can use the following method: fstream

Fgetc reads information from the file (EOF value:-1) # Include IntMain (Void){File * stream;IntCh;Stream = fopen ("/Home/chenyadong/desktop/temp1","R +");Do{Ch = fgetc (Stream );If(CH = EOF)Break;Putc (CH, stdout );}While(1);Fclose (Stream

Private void btnsearch_click (Object sender, eventargs E){String [] patterns = {@ "/W */.*"};String Path = txtsource. text;Displayfileinfo (@ C:/logs, patterns, true );} Private void displayfileinfo (string path, string [] filepatterns, bool

Suppose there is a callData.txtFile that contains the following content:Fry:one jillion dollars.[Everyone gasps.]Auctioneer:sir, that's not a number.Data read, test.The following is a data.txt-based data read operation:#include #include #include