Word, Character And Line Count Program In Java

Alagunila Meganathan
5y
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Blog

WordCount.rar

Introduction

In this blog, I am going to explain the program for word, character and line count in Java.

Software Requirements

Java, Notepad.

Program

import java.io.*;
public class WordCount {
private static void linecount(String fName, BufferedReader in ) throws IOException {
long numChar = 0;
long numLine = 0;
long numWords = 0;
String line;
do {
line = in .readLine();
if (line != null) {
numChar += line.length();
numWords += wordcount(line);
numLine++;
}
} while (line != null);
System.out.println("File Name: " + fName);
System.out.println("Number of characters: " + numChar);
System.out.println("Number of words: " + numWords);
System.out.println("Number of Lines: " + numLine);
}
private static void linecount(String fileName) {
BufferedReader in = null;
try {
FileReader fileReader = new FileReader(fileName); in = new BufferedReader(fileReader);
linecount(fileName, in );
} catch (IOException e) {
e.printStackTrace();
}
}
private static long wordcount(String line) {
long numWords = 0;
int index = 0;
boolean prevWhiteSpace = true;
while (index < line.length()) {
char c = line.charAt(index++);
boolean currWhiteSpace = Character.isWhitespace(c);
if (prevWhiteSpace && !currWhiteSpace) {
numWords++;
}
prevWhiteSpace = currWhiteSpace;
}
return numWords;
}
public static void main(String[] args) {
long numChar = 0;
long numLine = 0;
String line;
try {
if (args.length == 0) {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
line = in .readLine();
numChar = line.length();
if (numChar != 0) {
numLine = 1;
}
System.out.println("Number of characters: " + numChar);
System.out.println("Number of words: " + wordcount(line));
System.out.println("Number of lines: " + numLine);
} else {
for (int i = 0; i < args.length; i++) {
linecount(args[i]);
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
}