Lesson 14. BufferedReader, PrintWriter, FileReader, FileWriter

FileManager.java

import java.io.FileReader;
import java.io.FileWriter;
import java.io.BufferedReader;
import java.io.PrintWriter;
import java.io.IOException;

public class FileManager {

    public static void main(String[] args) throws Exception {
        try (
            BufferedReader br = new BufferedReader(new FileReader("first.txt"));
            PrintWriter pw = new PrintWriter(new FileWriter("second.txt"));
        ) {
            int line;
            while ((line = br.read()) != -1) {
                pw.write(line);
            }
        }
        System.out.println("Check your file second.txt, all done");
    }
}