BufferedWriter的简单实例

import java.io.BufferedWriter;import java.io.FileWriter;import java.io.IOException;public class BufferedWriterDemo {    public static void main(String[] args) throws IOException {        FileWriter fw = new FileWriter("buf.txt");        // 缓冲，将流对象传递给缓冲区        BufferedWriter bufw = new BufferedWriter(fw);        for (int i = 0; i < 4; i++) {            bufw.write("abcde" + i);            bufw.newLine(); // 跨平台的换行            bufw.flush(); // 刷新        }        // 关闭缓冲区，就已经将流对象一起关闭了        bufw.close();    }}