BufferedWriter

　　带有默认缓冲的字符输出流。

使用：

　　构造：BufferedWriter bf = new BufferedWriter("outFilePath");

　　写入：write("thing");

　　换行：newLine();

　　刷新缓冲区，会将内容写进目标文件：flush();

　　关闭该流的操作：close();

import java.io.BufferedWriter;  
import java.io.FileWriter; 
import java.io.IOException;  

public class BufferedWriterT {
    public static void main (String[] args) throws IOException {
        String path = "E:\\WriteTxt.txt";
        FileWriter fw = new FileWriter(path);
        BufferedWriter bufw = new BufferedWriter(fw);  
        bufw.write("hello world");
        bufw.newLine();
        bufw.write("hello world !!!");
        bufw.flush();
        bufw.close();
    }
}

 

学习链接：http://blog.csdn.net/liuhenghui5201/article/details/8279557