Java : Read and Write to a file

The code below show you how you can read a file using Java:

	Path path = Paths.get("myFile.txt");
	if(Files.exists(path)){
	File file = path.toFile();
	try(BufferedReader in = new BufferedReader(
	new FileReader(file))){
	String line = in.readLine();
	while(line != null){
	System.out.println(line);
	line = in.readLine();
	}
	} catch(IOException ex){
	//do something with exception
	}
	}

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Code for Writing to a file:

	Path path = Paths.get("myFile.txt");
	if(Files.exists(path)){
	File file = path.toFile();
	try(PrintWriter out = new PrintWriter(
	new BufferedWriter(
	new FileWriter(file)))){
	out.print("something interesting...");
	} catch(IOException ex){
	//do something with exception
	}
	}

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By using a buffered stream, you can dramatically improve the performance of I/O operations. We also use the try-with-resources for automatically closes the object and releases its resources.