Kode Java

 
package org.kodejava.example.io;
 
import java.io.File;
 
public class WritableExample
{
    public static void main(String[] args) throws Exception
    {
        File file = new File("Writable.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!");
        }
        
        // Now make our file writable
        file.setWritable(true);
 
        // re-check the read-write status of file 
        if (file.canWrite()) {
            System.out.println("File is writable!");
        } else {
            System.out.println("File is in read only mode!");
        }
    }
}
 
 

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