Java program to display the number of characters lines and words in a text file

In this article we will learn to implement a Java program to display the number of characters lines and words in a text file. A Java program is provided below that displays the number of characters, lines and words in a text file.

import java.io.*;
class FileDemo
{
	public static void main(String args[])
	{
		try
		{
			int lines=0,chars=0,words=0;
			int code=0;
			FileInputStream fis = new FileInputStream("sample.txt");
			while(fis.available()!=0)
			{
				code = fis.read();
				if(code!=10)
				chars++;
				if(code==32)
				words++;
				if(code==13)
				{
					lines++;
					words++;
				}
			}
			System.out.println("No.of characters = "+chars);
			System.out.println("No.of words = "+(words+1));
			System.out.println("No.of lines = "+(lines+1));
			fis.close();
		}
		catch(FileNotFoundException e)
		{
			System.out.println("Cannot find the specified file...");
		}
		catch(IOException i)
		{
			System.out.println("Cannot read file...");
		}
	}
}

Content in sample.txt file is:

He is
a good
boy

Input and output for the above program is as follows:

No.of characters = 16
No.of words = 5
No.of lines = 3

Suryateja Pericherla

Suryateja Pericherla, at present is a Research Scholar (full-time Ph.D.) in the Dept. of Computer Science & Systems Engineering at Andhra University, Visakhapatnam. Previously worked as an Associate Professor in the Dept. of CSE at Vishnu Institute of Technology, India.

He has 11+ years of teaching experience and is an individual researcher whose research interests are Cloud Computing, Internet of Things, Computer Security, Network Security and Blockchain.

He is a member of professional societies like IEEE, ACM, CSI and ISCA. He published several research papers which are indexed by SCIE, WoS, Scopus, Springer and others.