File Permission-Java I/O package

Lets discuss the file permission concept in java i/o package

Below are the list of permission related functions in File Class
 booleancanExecute()
          Tests whether the application can execute the file denoted by this abstract pathname.
 booleancanRead()
          Tests whether the application can read the file denoted by this abstract pathname.
 booleancanWrite()
          Tests whether the application can modify the file denoted by this abstract pathname.

Lets understand this with the example below

package com.java.everythingaboutselenium;
import java.io.File;
import java.io.IOException;
 
public class FilePermission
{
    public static void main( String[] args )
    {
     try {
 
      File f = new File("/selenium/execute.sh");
 
      if(f.exists()){
      System.out.println("Is Execute allow : " + f.canExecute());
  System.out.println("Is Write allow : " + f.canWrite());
  System.out.println("Is Read allow : " + f.canRead());
      }
 
      f.setExecutable(false);
      f.setReadable(false);
      f.setWritable(false);
 
      System.out.println("Is Execute allow : " + f.canExecute());
      System.out.println("Is Write allow : " + f.canWrite());
      System.out.println("Is Read allow : " + f.canRead());
 
      if (f.createNewFile()){
        System.out.println("File is created!");
      }else{
        System.out.println("File already exists.");
      }
 
     } catch (IOException e) {
      e.printStackTrace();
    }
    }
}

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