read file into arraylist java

Java read txt file, Chinese characters garbled, because the encoding format of the file and the program code adopted a different encoding format. Usually, if you do not modify, the encoding format used by Windows itself is GBK (while GBK and gb2312 are basically the same encoding), the program generally uses utf-8, so

Items are often used in json,xml,properties, text files, etc., as configuration files. Used to store connection strings or other configuration parameters.This document records the properties.Properties file, which stores the format key = value. For example, create a new Config.properties file: 12345678 ####这里是config.properties文件,存储数据库信息#####数据库ipconnip=192.168.10.29username= user1passwo

); } } return sqllist; } catch (Exception ex) { Log.error ("Read report SQL build table file [Reportform.sql] failed.", ex); throw new Exception (Ex.getmessage ()); } } } Initialize Database Build table: Set up a reporting database for userslistString crsql = "CREATE database Col_user_" + user.getid () + "DEFAULT CHARACTER SET UTF8";//Build Library statementtry {Build LibraryJdbctemplate.update (Crsql);for

/**Flashattrib. Java*/ Package picattrib; Import java. Io. ioexception;Import java. Io. fileinputstream; Public class flashattrib {Public flashattrib (){} Public static void main (string [] ARGs ){Flashattrib = new flashattrib ();Byte [] BB = NULL;Image1 im = NULL;Try {BB = flashattrib. readfromfile ("D: // aa.swf ");Im = flashattrib. getattrib (bb );System. Out.

In a multi-threaded program, if a shared file is to be accessed or edited, how can I read and write files in the exclusive mode? Using java. NiO. channels. filelock is a good method. The idea is to first create a file named genfile. LCK, The getchannel (). trylock () method returns a filelock. If no one accesses the

Package Cn.jbit.copy;import Java.io.bufferedinputstream;import Java.io.dataoutputstream;import java.io.File;import Java.io.fileinputstream;import Java.io.filenotfoundexception;import Java.io.fileoutputstream;import Java.io.ioexception;import Java.io.inputstream;public class Test {/** * @param args */public static void main (string[] Arg s) {///1), create a file object with a filename of "c:\\01.jpg";//2, use a byte stream object to

First, there is a properties file in the databaseThe contents are in the form of a key-value pair.For exampledriver=com.mysql.jdbc.driverurl=jdbc:mysql://localhost:3306/testuser=rootpwd=950218Then set a class to read inside the Driver,url and so onFor example: Public classMasterutil {Private StaticString URL; Private StaticString User; Private StaticString pwd;Static{resourcebundle Rbundle= Resourcebundle.g

Write a string to a file:Code: Import java. Io .*; Class fileoutputdemo { Public static void main (string ARGs []) { Fileoutputstream out; // declare a file output object Printstream P; // declare a print Stream Object Try { // Connected to "myfile.txt" Out = new fileoutputstream ("C:/a.txt "); // Connect print stream to the output stream P = new printstream (out ); P. println ("this is writ

Preconditions: Run Java programs using Java-jar Xxx.jar, where some of the code needs to read the configuration files in the jarProblem Description:Discovery could not read to the configuration fileSolution Ideas:1. The configuration file is not hit in the jar package2. The

How does java read a string in a file and create an object of the class named after this character? We generally use properties or XML files as resource storage files. Now we will mainly introduce the operations on properties. 1. Create a new package named config In the src file. 2. Create a

Recently looking at a letter of Java small software source code, and then try to write their own, but in the reading of the file has been found "file not found" exception, check the various environment variables and directories, finally found the problem. The following are the specific error conditions:　　Import Java.io.FileReader; Public class test{ publicsta

("Configuration file path" +filepath); Properties Properties = new properties (); try {inputstream in = new Bufferedinputstream (new FileInputStream (FilePath)); Properties.load (in); } catch (Exception e) {System.err.println ("Get resource profile [" +fullfilename+ "] Error occurred!");} return properties; /** * Gets the value of Global.properties by key name, String type * * @param key * @return Return String * * public static string Getprop (Strin

Ava loads a properties file by loading a properties configuration file with the Properties class's load () method in the Java.util package, and the load () method needs to receive a file input stream, The InputStream build requires a Java.io.File object, new FileInputStream (path); Now the question is focused on how to dynamically acquire Ava loads a properties

1 Add permission below SDK android:minsdkversion= " android:targetsdkversion" = "/>" 2 Add the following code below the OnCreate function:1 //write files in SD2 Public voidWritefilesdcardfile (String FileName,byte[] bytes)throwsIOException3 { 4 Try5 { 6FileOutputStream Fout =NewFileOutputStream (fileName); 7 fout.write (bytes); 8 Fout.close (); 9 } Ten Catch(Exception e) One { A E.printstacktrace (); - } -

Write:Additional content: Public Static voidMain (string[] args)throwsException {String data= "This content would append to the end of the file\n"; File File=NewFile ("Javaio-appendfile.txt"); if(!file.exists ()) {File.createnewfile (); } FileWriter Filewritter=NewFileWriter (File.getname (),true); BufferedWriter Bufferwritter=NewBufferedWriter (Filewritte

Package Copyfile;import java.io.*;p ublic class Copy {public static void main (string[] args) throws IOException {CopyFile ( "D:/new/a.txt", "D:/new/b.txt", true);//oldpath,newpath, does not overwrite the preceding}public static void CopyFile (String oldpth,string Newpath,boolean add) throws ioexception{fileinputstream in = null; FileOutputStream fs = null;try {///instantiate the file and determine if the file