字符缓冲流

 

package com.io.liushuaishuai;

import java.io.*;

public class BufferedStreamDemo01 {
    public static void main(String[] args) throws IOException {
//        FileWriter fw = new FileWriter("myIOstream\\fos.txt");
//        BufferedWriter bw = new BufferedWriter(new FileWriter("myIOstream\\fos.txt"));
//        bw.write("hello\r\n");
//        bw.write("world\r\n");

        BufferedReader br = new BufferedReader(new FileReader("myIOstream\\fos.txt"));
//一次读取一个字符的数据
        //        int i;
//        while ((i = br.read()) != -1) {
//            System.out.print((char) i);
//        }
        //一次读取一个字符数组的数据
        char[] ch = new char[1024];
        int len;
        while ((len = br.read(ch)) != -1) {
            System.out.print(new String(ch, 0, len));
        }


        //bw.close();
        br.close();

    }
}