Number of characters, lines, and words in a text file.

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

Program Code in JAVA:

import java.io.*;

import java.util.*;

class FileCount

{

public static void main(String[] args) throws Exception

{

String fname;

System.out.println("Enter a filename:");

DataInputStream dis=new DataInputStream(System.in);

fname=dis.readLine();

FileReader f=new FileReader(fname);

BufferedReader br=new BufferedReader(f);

String str;

int words=0,lines=0,chars=0;

while((str=br.readLine())!=null)

{

StringTokenizer st=new StringTokenizer(str);

lines++;

words+=st.countTokens();

int i=0,n;

n=str.length();

for(i=0;i<n;i++)

{

char ch=str.charAt(i);

if(ch!=' ')

chars++;

}

}

System.out.println("the number of lines in the file are = "+lines);

System.out.println("the number of words in the file are = "+words);

System.out.println("the number of characters in the file are = "+chars);

}

}

Program Output:

c:\java>javac FileCount.java

c:\java>java FileCount

Enter a filename:

FileCount.java

the number of lines in the file are = 34

the number of words in the file are = 85

the number of characters in the file are = 749