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Java Encapsulation

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Java Date

Java ArrayList

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Java Wrapper Classes

Java Exceptions

Java RegEx

Java Threads

Java Lambda

Java File Handling

Java Files

Java Create/Write Files

Java Read Files

Java Delete Files

Java Files

File management is an integral part of any application.

Java has several ways to create, read, update and delete files.

Java File Handling

File class from the java.io package, allows us to work with files.

To use a file class, create a class object, and specify a file name or directory name:

Example

import java.io.File;  // Import the File class

File myObj = new File("filename.txt"); // Specify the filename

The file category has many useful ways to create and retrieve information about files. For example:

Method	Type	Description
`canRead()`	Boolean	Tests whether the file is readable or not
`canWrite()`	Boolean	Tests whether the file is writable or not
`createNewFile()`	Boolean	Creates an empty file
`delete()`	Boolean	Deletes a file
`exists()`	Boolean	Tests whether the file exists
`getName()`	String	Returns the name of the file
`getAbsolutePath()`	String	Returns the absolute pathname of the file
`length()`	Long	Returns the size of the file in bytes
`list()`	String[]	Returns an array of the files in the directory
`mkdir()`	Boolean	Creates a directory

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