4.c. display the characters, lines and words in a FILE

c) Write a Java program that displays the number of characters, lines and words in a text file.

import javax.swing.*;

import java.io.*;

import java.util.*;

public class Count

{

public static void main(String args[])

{

try

{

String s=JOptionPane.showInputDialog("Enter the file name : ");

FileInputStream f=new FileInputStream(s);

DataInputStream d=new DataInputStream(f);

String data;

StringTokenizer st;

int words=0,chars=0,i=0;

while((data=d.readLine())!=null)

{

i++;

st=new StringTokenizer(data);

words+=st.countTokens();

chars+=data.length();

}

System.out.println("total words \n" +words);

System.out.println("total chras \n" +chars);

System.out.println("total lines \n" +i );

f.close();

}

catch(Exception)

System.out.println("err"+e);

}

}

}