INPUT A LOCATION OF A FILE AND PRINT THE PATH , NAME AND EXTENSION OF THE FILE

/* eg : INPUT --> "C:/program files/new program/path/show path/example.prg"
  ----------------------------------------------------------------------------
  OUTPUT:
  PATH --> C:/program files/new program/path/show path/
  FILE NAME --> example
  EXTENSION --> prg 
  */

import java.util.*;//I am using Scanner class to take the input
class location
{
    Scanner in = new Scanner(System.in);
    void main()
    {
        System.out.println("Enter the Location of a file");
        String p = in.next();//to input the location
        int index_file = p.lastIndexOf('/');//to store the last index of '/' in the location
        String file_with_extention = p.substring(index_file+1);//to store the file and extention  
        int index_dot = file_with_extention.lastIndexOf('.');//to sore the last index of '.' in order to find the extention
        String path = p.substring(0,index_file+1);//to take out the path of the file
        String extension = file_with_extention.substring(index_dot+1);//to sore the extension of the file
        String file = file_with_extention.substring(0,index_dot);//to store the name of file
      System.out.println("Path: "+path);
    System.out.println("File Name: "+file);
    System.out.println("Extension: "+extension);
    }
}

My Computation