Java Program to change a file attribute to writable

import java.io.File;
public class Demo {
	public static void main(String[] args) throws Exception {
		File myFile = new File("input.txt");
		myFile.createNewFile();
		myFile.setReadOnly();
		if (myFile.canWrite()) {
			System.out.println("Writable!");
		} else {
			System.out.println("Read only mode!");
		}
		// set file to writable
		myFile.setWritable(true);
		if (myFile.canWrite()) {
			System.out.println("Writable!");
		} else {
			System.out.println("Read only mode!");
		}
	}
}