java.io.File setWritable(boolean writable)
Description
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
Throws:
- 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.
Compatibility
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.
package com.javatutorialhq.java.examples;
import java.io.File;
/*
* 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
if(file.exists()){
// set file as writable
boolean result = file.setWritable(true);
// evaluate the result
if(result){
System.out.println("Operation succeeded");
}else{
System.out.println("Operation failed");
}
}else{
System.out.println("File does not exist");
}
}
}
Sample Output
Below is the sample output when you run the above example.
