... import java.io.*; class TestRead { public static void main(String[] args) throws Exception{ BufferedReader r = new BufferedReader( new FileReader("rfile.txt")); String str; while ((str = r.readLine()) != null) { System.out.println(str); } } } (загрузить программу и тестовый файл) . ... import java.io.*; class TestWrite { public static void main(String[] args) throws Exception{ BufferedWriter w = new BufferedWriter( new FileWriter("wfile.txt")); int i = 10; String str1 = "Строка 1. ...