In Java, BufferedWriter is a character streams class to handle the character data. Unlike bytes stream (convert data into bytes), you can just write the strings, arrays or characters data directly to file.


package com.mkyong;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

public class WriteToFileExample {
	public static void main(String[] args) {
		try {

			String content = "This is the content to write into file";

			File file = new File("/users/mkyong/filename.txt");

			// if file doesnt exists, then create it
			if (!file.exists()) {
				file.createNewFile();
			}

			FileWriter fw = new FileWriter(file.getAbsoluteFile());
			BufferedWriter bw = new BufferedWriter(fw);
			bw.write(content);
			bw.close();

			System.out.println("Done");

		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}

Reference

  1. BufferedWriter documentation