How can I change a file attribute to read only?
Category: java.io, viewed: 1532 time(s).
This code demonstrate how we can modify file attribute to be read only. File class has a setReadOnly() method to make file read only and a canWrite() method to know whether it is writable or not.
package org.kodejava.example.io;
import java.io.File;
public class FileReadOnlyExample
{
public static void main(String[] args) throws Exception
{
File file = new File("ReadOnly.txt");
// Create a file only if it doesn't exist.
file.createNewFile();
// Set file attribute to read only so that it cannot be written
file.setReadOnly();
// We are using the canWrite() method to check whether we can
// modified file content.
if (file.canWrite())
{
System.out.println("File is writable!");
} else
{
System.out.println("File is in read only mode!");
}
}
}
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