InputStreamReader和FileReader的区别

/*
    BufferedReader

    InputStreamReader 转换流
*/
import java.io.*;

public class BufferedReaderTest02
{
    public static void main(String[] args) throws Exception{
        
        /*
        //创建带有缓冲区的字符输入流
        FileInputStream fis = new FileInputStream("BufferedReaderTest02.java"); //文件字节输入流
        
        //转换流(将字节流转换成字符流)
        InputStreamReader isr = new InputStreamReader(fis); //isr是字符流

        BufferedReader br = new BufferedReader(isr);
        */

        BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream("BufferedReaderTest02.java")));

        //开始读
        String temp = null;
        while((temp=br.readLine())!=null){
            System.out.println(temp);
        }

        //关闭,关闭最外层的流即可. (装饰者模式)
        br.close();
    }
}