Oracle
docs.oracle.com › javase › 8 › docs › api › java › io › File.html
File (Java Platform SE 8 )
April 21, 2026 - Java™ Platform Standard Ed. 8 ... An abstract representation of file and directory pathnames.
W3Schools
w3schools.com › java › java_files.asp
Java Files
The File class from the java.io package, allows us to work with files.
Videos
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How to Easily Read and Write to Files in Java (File I/O) - Java ...
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File IO in Java with Input and Output Streams and Writers - YouTube
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How to WRITE FILES with Java in 8 minutes! ✍ - YouTube
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How to READ FILES with Java in 8 minutes! 📖 - YouTube
Oracle
docs.oracle.com › javase › tutorial › essential › io
Lesson: Basic I/O (The Java™ Tutorials > Essential Java Classes)
Most of the classes covered in the File I/O section are in the java.nio.file package.
Oracle
docs.oracle.com › en › java › javase › 22 › docs › api › java.base › java › io › File.html
File (Java SE 22 & JDK 22)
July 16, 2024 - If the directory argument is null then the system-dependent default temporary-file directory will be used. The default temporary-file directory is specified by the system property java.io.tmpdir. On UNIX systems the default value of this property is typically "/tmp" or "/var/tmp"; on Microsoft Windows systems it is typically "C:\\WINNT\\TEMP".
Upenn
engineering.upenn.edu › ~cis1xx › resources › java › fileIO › introToFileIO.html
Intro to File I/O
A line terminator can be a carriage-return/line-feed sequence ("\r\n"), a single carriage-return ("\r"), or a single line-feed ("\n"). Supporting all possible line terminators allows programs to read text files created on any of the widely used operating systems. Let's modify the copyCharacters example to use line-oriented I/O. To do this, we have to use two classes we haven't seen before, BufferedReader and PrintWriter. The copyLines method example invokes BufferedReader.readLine and PrintWriter.println to do input and output one line at a time. import java.io.FileReader; import java.io.FileW
GeeksforGeeks
geeksforgeeks.org › java › java-io-input-output-in-java-with-examples
Input/Output in Java with Examples - GeeksforGeeks
Example: Java Program illustrating the Byte Stream to copy contents of one file to another file. ... import java.io.*; public class Geeks { public static void main( String[] args) throws IOException { FileInputStream sourceStream = null; FileOutputStream targetStream = null; try { sourceStream = new FileInputStream("sourcefile.txt"); targetStream = new FileOutputStream("targetfile.txt"); // Reading source file and writing content to target file byte by byte int temp; while (( temp = sourceStream.read()) != -1) targetStream.write((byte)temp); } finally { if (sourceStream != null) sourceStream.close(); if (targetStream != null) targetStream.close(); } } }
Published December 10, 2025
Microsoft Learn
learn.microsoft.com › en-us › dotnet › api › java.io.file
File Class (Java.IO) | Microsoft Learn
An abstract representation of file and directory pathnames. [Android.Runtime.Register("java/io/File", DoNotGenerateAcw=true)] public class File : Java.Lang.Object, IDisposable, Java.Interop.IJavaPeerable, Java.IO.ISerializable, Java.Lang.IComparable
Tutorialspoint
tutorialspoint.com › java › java_files_io.htm
Java - Files and I/O
Failure indicates that the path specified in the File object already exists, or that the directory cannot be created because the entire path does not exist yet. The mkdirs() method creates both a directory and all the parents of the directory. Following example creates "/tmp/user/java/bin" directory − ... import java.io.File; public class CreateDir { public static void main(String args[]) { String dirname = "/tmp/user/java/bin"; File d = new File(dirname); // Create directory now.
Oracle
docs.oracle.com › en › java › javase › 17 › docs › api › java.base › java › io › File.html
File (Java SE 17 & JDK 17)
April 21, 2026 - Marks the file or directory named by this abstract pathname so that only read operations are allowed. ... A convenience method to set the owner's write permission for this abstract pathname. ... Sets the owner's or everybody's write permission for this abstract pathname. ... Returns a java.nio.file.Path object constructed from this abstract path.
Tutorialspoint
tutorialspoint.com › java › io › java_io_file.htm
Java - File Class
August 17, 2020 - To work with a file in Java, you first create a File object by passing the file name or path as a string. The File object represents the actual file/directory on the disk. import java.io.File; // Import the File class File myObj = new File("filename.txt"); // Specify the filename
Baeldung
baeldung.com › home › java › java io › the java file class
The Java File Class | Baeldung
February 8, 2025 - @Test public void givenDir_whenMkdir_thenDirIsDeleted() { File directory = new File("dir"); assertTrue(directory.mkdir()); assertTrue(directory.delete()); } @Test public void givenFile_whenCreateNewFile_thenFileIsDeleted() { File file = new File("file.txt"); try { assertTrue(file.createNewFile()); } catch (IOException e) { fail("Could not create " + "file.txt"); } assertTrue(file.delete()); }
CodeGym
codegym.cc › java blog › java io & nio › java.io.file class
Java.io.File Class
June 6, 2022 - In many cases, the program needs to access certain files in its work. For example, user data can be recorded in some external file, and in order to read it, the program needs to be able to work with it — open, read data, possibly edit and close. For these purposes, the Java programming language has the Java.io.File Class.
Oracle
docs.oracle.com › javase › 7 › docs › api › java › io › File.html
File (Java Platform SE 7 )
Java™ Platform Standard Ed. 7 ... An abstract representation of file and directory pathnames.
Jenkov
jenkov.com › tutorials › java-io › file.html
Java File
The Java File class, java.io.File in the Java IO API gives you access to the underlying file system.
Jenkov
jenkov.com › tutorials › java-io › files.html
Java IO: Files
If you need to read a file from one end to the other you can use a FileInputStream or a FileReader depending on whether you want to read the file as binary or textual data. These two classes lets you read a file one byte or character at a time from the start to the end of the file, or read the bytes into an array of byte or char, again from start towards the end of the file.
ZetCode
zetcode.com › java › io-file
Java File Class - Complete Tutorial with Examples
The java.io.File class represents file and directory pathnames in Java. It provides methods for file system operations like creating, deleting, and renaming files.
Oracle
docs.oracle.com › javase › tutorial › essential › io › file.html
Reading, Writing, and Creating Files (The Java™ Tutorials > Essential Java Classes > Basic I/O)
import static java.nio.file.StandardOpenOption.*; import java.nio.file.*; import java.io.*; public class LogFileTest { public static void main(String[] args) { // Convert the string to a // byte array. String s = "Hello World!
MIT
web.mit.edu › java_v1.0.2 › www › javadoc › java.io.File.html
Class java.io.File
java.lang.Object | +----java.io.File · public class File · extends Object This class represents a file name of the host file system. The file name can be relative or absolute. It must use the file name conventions of the host platform. The intention is to provide an abstraction that deals ...
DigitalOcean
digitalocean.com › community › tutorials › java-files-nio-files-class
Java Files - java.nio.file.Files Class | DigitalOcean
August 4, 2022 - This class is used for basic file operations like create, read, write, copy and delete the files or directories of the file system. Before move ahead let’s have a look at the below terms first: Path: This is the interface that replaces java.io.File class as the representation of a file or ...