fcm files

When processing large files, frequent read/write operations using normal FileInputStream, FileOutputStream, or RandomAccessFile will lead to slow down the process due to frequent read/write. The following is a comparative experiment.[Java]Package test;Import java. io. BufferedInputStream;Import java. io. FileInputStream;Import java. io. FileNotFoundException;Import java. io. IOException;Import java. io. RandomAccessFile;Import java. nio. MappedByteBuf

// Remember the data type that is used for output, // For example, DOS. writeint (100); write, read: DIS. readutf () sometimes has unexpected errors, so you must always remember what data type is used for data type output reading. // Datainputstream (binary input stream) Public class datainputstreamdemo { // Binary stream (read operation) Public static void main (string [] ARGs ){ Fileinputstream FCM = NULL; Datainputstream Dis = NULL; Try {

() checkbox whether to select FileOutputStream fos = new FileOutputStream (save, cbPush. isChecked (); fos. write (text. getBytes ("UTF-8"); fos. flush (); fos. close (); // whether it is a folder // save. isDirectory (); // whether it is a file // save. isFile (); // whether the file name is hidden. starting File // save. isHidden (); // get the object name array of all sub-files // save. list (); // get the array of all sub-

Java reads Excel files without dependency, and java reads excel files with dependencySpeaking of Java reading Excel files, it is of course a lot of use POI or jxls, but when I read a book today, it is mentioned that the JdbcOdbcDriver driver class can also be used to read Excel files without relying on third-party libr

Php reads zip files (delete files, extract files, and add files) instances. The following small series will show you several examples of php zip files. we can read the specified files in the zip package and delete the specified

Restore non-critical Oracle files, redo, temporary files, index files, and password files Restore non-critical Oracle files, redo, temporary files, index files, and password

Environment: WIN10 64-bit python3.7Single *.py file packagingPython GUI: program packaged as EXEFirst, install Pyinstaller, command pip install Pyinstaller, (uppercase P, knocking on the blackboard, to test)Second, packaging EXE steps:CMD enters the PY program project directory, executes the command: Pyinstaller-f-w--icon=xxx.ico main.py--noconsole. Where-F is the generation of a single EXE executable file, and-W represents the form program,--icon is to set the EXE's display icon, ' main.py ' is

Php reads zip files (delete files, Extract files, and add files) instances,

// Filereader. Java Package com. Xie. Tencent; Import java. Io. file;Import java. util. arraylist;Import java. util. hashmap;Import java. util. iterator;Import java. util. List;Import java. util. Set;Import java. util. RegEx. pattern; /*** This is the last question of the tencent2010-10-10's Java test.* Read the *. txt file of a folder and Its subfolders, and output all file names.* At the same time, you need to read the words that appear in the file and count the number of words that appear,* S

. Skip (size-128 ); // Tag: 3 byte FS. Read (BUF ); String tag = new string (BUF, 0, 3 ); System. Out. println ("id3v1:" + tag ); // Song name 30 byte FS. Read (BUF ); String songname = new string (BUF, 0, 30 ); System. Out. println ("song name:" + songname ); // Singer name 30 byte Int Len = FCM. Read (BUF ); String songername = new string (BUF, 0, Len ); System. Out. println ("songer name:" + songername ); // Album name 30 byte Len =

parameter file: all parameter files are usually under $ORACLE _home/dbsSqlplus query statement: show parameter spfile;Network connection files: $ORACLE the _home/dbs/network/admin directoryControl file: SELECT * from V$controlfile;Data files: typically recorded in oracledata/instancesSelect file_name from Dba_data_files;Log f