setWritable(boolean writable)


On this document we will be showing a java example on how to use the setWritable(boolean writable) method of File Class. This method is a convenience method to set the owner’s write permission for this abstract pathname. On some platforms it may be possible to start the Java virtual machine with special privileges that allow it to modify files that disallow write operations.

An invocation of this method of the form file.setWritable(arg) behaves in exactly the same way as the invocation


  • SecurityException – If a security manager exists and its SecurityManager.checkWrite(java.lang.String) method denies write access to the file.

Method Syntax

public boolean setWritable(boolean writable)

Method Argument

Data Type Parameter Description
boolean writable If true, sets the access permission to allow write operations; if false to disallow write operations

Method Returns

This method returns boolean, true if and only if the operation succeeded. The operation will fail if the user does not have permission to change the access permissions of this abstract pathname.


Requires Java 1.6 and up

Java File setWritable(boolean writable) Example

Below is a java code demonstrates the use of setWritable(boolean writable) method of File class. The example presented might be simple however it shows the behaviour of this method.



 * This example source code demonstrates the use of  
 * setWritable(boolean writable) method of File class.

public class FileSetWritableExample2 {

	public static void main(String[] args) {
		// initialize File object
		File file = new File("C:javatutorialhqinputtest_file.txt");		
		// check first if file exist
			// set file as writable
			boolean result = file.setWritable(true);			
			// evaluate the result
				System.out.println("Operation succeeded");
				System.out.println("Operation failed");
			System.out.println("File does not exist");

Sample Output

Below is the sample output when you run the above example.

java lang File setWritable(boolean writable) example output