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();
}
}