Write File Java Using Buffered Streams IO

Write File Java Using Buffered Streams IO

In this sample java class you will see how to read data from file and write to another file. We will use Buffered Streams IO to write data into file as shown below:

Java Class:

package com.javahonk;

import java.io.BufferedWriter;
import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

import org.apache.commons.io.FileUtils;

public class WriteUsingBufferedStreamIO {
	
	private final static String WRITE_TO_FILE_NAME = "C:\\JavaHonk\\File\\WriteToFile.txt";
	private final static String READ_TO_FILE_NAME = "C:\\JavaHonk\\File\\JavaHonk.txt";	

	public static void main(String args[]) throws IOException {

		File writeToFile = new File(WRITE_TO_FILE_NAME);
		File readFromFile = new File(READ_TO_FILE_NAME);
		Path writeFilePath = Paths.get(WRITE_TO_FILE_NAME);
		String inputFileStringRepresentation = FileUtils.readFileToString(readFromFile, "UTF-8");
		
		if (!writeToFile.exists()) {
			writeToFile.createNewFile();
		}
		
		Charset charset = Charset.forName("US-ASCII");
		try (BufferedWriter writer = Files.newBufferedWriter(writeFilePath,charset)) {
			writer.write(inputFileStringRepresentation, 0,inputFileStringRepresentation.length());
		} catch (IOException ioException) {
			System.err.format("IOException:", ioException);
		}		
		
	}	

}

Output:

For more information how to use Buffered Streams IO please read this oracle tutorial