package com.tutorialspoint;

import java.io.File;

public class FileDemo {
   public static void main(String[] args) {
      File f = null;
      boolean bool = false;

      try {
         // create new File object
         f = new File("C:/test.txt");

         // returns true if file exists
         bool = f.exists();

         // if file exists
         if(bool) {

            // set file access to writable for everybody
            bool = f.setWritable(true, false);

            // print
            System.out.println("setWritable() succeeded?: "+bool);

            // checks whether the file is writable
            bool  = f.canWrite();

            // prints
            System.out.print("Is file writable?: "+bool);
         }

      } catch(Exception e) {
         // if any error occurs
         e.printStackTrace();
      }
   }
}