java例程练习（转换流）

import java.io.*; public class Test { public static void main(String[] args) { try { OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream("C:/java/char.txt")); osw.write("microsoftibssunapplehp"); System.out.println(osw.getEncoding());//文本编码 osw.close(); //加了true 可以再文件末尾添加 osw = new OutputStreamWriter(new FileOutputStream("C:/java/char.txt", true),"ISO8859_1"); osw.write("microsoftibssunapplehp"); System.out.println(osw.getEncoding());//文本编码 osw.close(); } catch (IOException e) { } } }

import java.io.*; public class Test { public static void main(String[] args) { InputStreamReader isr = new InputStreamReader(System.in); BufferedReader br = new BufferedReader(isr); String s = null; try { s = br.readLine(); while(s != null) { if(s.equalsIgnoreCase("exit")) break; System.out.println(s.toUpperCase()); s = br.readLine(); } br.close(); } catch (IOException e) { e.printStackTrace(); } } }