java.io.File setReadable(boolean readable, boolean ownerOnly)
Description
The Files class defines methods that operate on file attributes including file permissions. This may be used when finer manipulation of file permissions is required.
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, boolean ownerOnly)
Method Argument
| Data Type | Parameter | Description |
|---|---|---|
| boolean | readable | If true, sets the access permission to allow read operations; if false to disallow read operations |
| boolean | ownerOnly | If true, the read permission applies only to the owner’s read permission; otherwise, it applies to everybody. If the underlying file system can not distinguish the owner’s read permission from that of others, then the permission will apply to everybody, regardless of this value. |
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, boolean ownerOnly) Example
Below is a java code demonstrates the use of setReadable(boolean readable, boolean ownerOnly) method of File class. The example presented might be simple however it shows the behaviour of the setReadable(boolean readable, boolean ownerOnly) 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, boolean ownerOnly) method of File class.
*
*/
public class FileSetReadableExample1 {
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 considering if the user is the owner or not
boolean result = file.setReadable(true, false);
// 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.
