java学习笔记之IO一（）

public class BrAndBwOrPwDemo {
public static void main(String[] args) throws IOException{
//对文件进行读写操作
BufferedReader br = new BufferedReader(
new InputStreamReader(
new FileInputStream("e:\\javaio\\imooc.txt")));
/*BufferedWriter bw = new BufferedWriter(
new OutputStreamWriter(
new FileOutputStream("e:\\javaio\\imooc3.txt")));*/

PrintWriter pw = new PrintWriter("e:\\javaio\\imooc4.txt");//
//PrintWriter pw1 = new PrintWriter(outputStream,boolean autoFlush);
String line ;
while((line = br.readLine())!=null){
System.out.println(line);//一次读一行，并不能识别换行
/*bw.write(line);
//单独写出换行操作
bw.newLine();//换行操作
bw.flush();*/
pw.println(line);
pw.flush();
}
br.close();
//bw.close();
pw.close();
}

}