BCA and B.Sc Programs - Programming in Java Lab - Bharathiar University - Practical Program 4- Write a Java Program which open an existing file and append text to that file.

 

Bharathiar University

Programming Java Lab

Java Program 4

Write a Java Program which open an existing file and append text to that file.

Source Code

import java.io.BufferedWriter;

import java.io.FileWriter;

import java.io.IOException;

import java.util.*;

public class AppendFile {

    public static void main(String[] args) {

        String filePath;

        // The text you want to append

        String text;

        

        try {

            Scanner in =new Scanner(System.in);

             // Specify the file path you want to append to

            System.out.println("Enter File Path (use double slash):");

            filePath=in.nextLine();

            // Create a FileWriter in append mode

            FileWriter fw = new FileWriter(filePath, true);

            // Create a BufferedWriter for efficient writing

            BufferedWriter bw = new BufferedWriter(fw);

             // The text you want to append

            System.out.println("Enter text to append the File:");

            text=in.nextLine();

            bw.newLine(); 

            // Append the text to the file

            bw.write(text);

            bw.newLine(); // Add a newline for clarity

            // Close the BufferedWriter to flush and release resources

            bw.close();

            System.out.println("Text appended to the file successfully.");

        } catch (IOException e) {

            System.err.println("An error occurred: " + e.getMessage());

        }

    }

}

OUTPUT

sample.txt file before appending text

sample.txt file after appending text