java中缓冲读写buffer基础程序

package com.buffered; import java.io.*; public class TestBufferedIO public static void main(String args) String path = “d:/SQLHelp.java“; TestBufferedIO t = new TestBufferedIO(); try / t.read2(path); /t.read3(); /PrintStream ps = System.out; PrintStream ps = new PrintStream(new File(“d:/SQLHelp1.java“); t.list(path, ps); catch (IOException e) e.printStackTrace(); /* * 测试字节流的处理流 * * param path * throws IOException */ public void read1(String path) throws IOException File f = new File(path); InputStream is = new FileInputStream(f); BufferedInputStream bis = new BufferedInputStream(is); byte bs = new byte20; int flag = -1; while (flag = bis.read(bs) != -1) String msg = new String(bs); System.out.print(msg); bis.close(); is.close(); /* * 测试打印流 * * param f * param fs */ public static void list(String f, PrintStream fs) throws IOException try BufferedReader br = new BufferedReader(new FileReader(f); String s = null; while (s = br.readLine() != null) fs.println(s); br.close(); catch (IOException e) fs.println(“无法读取文件 “); /* * 测试字符流的处理流 * * param path * throws IOException */ public void read2(String path) throws IOException File f = new File(path); Reader reader = new FileReader(f); BufferedReader br = new BufferedReader(reader); String msg = null; while (msg = br.readLine() != null) System.out.println(msg); br.close(); reader.close(); /* * 接收键盘输入 */ public void read3() throws IOException System.out.println(“用户请输入内容：“); InputStream is = System.in; BufferedReader reader = new BufferedReader(new InputStreamReader(is); String msg = null; while (msg