java.io.File setReadable(boolean readable)
Description
An invocation of this method of the form file.setReadable(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 setReadable(boolean readable)
Method Argument
| Data Type | Parameter | Description |
|---|---|---|
| boolean | readable | If true, sets the access permission to allow read operations; if false to disallow read 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. If readable is false and the underlying file system does not implement a read permission, then the operation will fail.
Compatibility
Requires Java 1.6 and up
Java File setReadable(boolean readable) Example
Below is a java code demonstrates the use of setReadable(boolean readable) method of File class. The example presented might be simple however it shows the behaviour of the setReadable(boolean readable) method of File class.
Basically we basically set a file as readable and we put a check if the operation succeeded or not.
package com.javatutorialhq.java.examples;
import java.io.File;
/*
* This example source code demonstrates the use of
* setReadable(boolean readable) method of File class.
*
*/
public class FileSetReadableExample2 {
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 readable if the user is the owner
boolean result = file.setReadable(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.
