Java 输入输出流

package com.practise.test;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.io.OutputStreamWriter;
import java.io.BufferedWriter;
//所有以 Stream 结尾的类都是面向字节如 FileInputStream/FileOutputStream
//以 Reader/Writer 结尾的类是面向字符
//以 File 开头的类是面向外存
//以 Buffered 开头的类是面向缓冲区
public class ReadAndWrite 
{
    public static void main (String[] args)
    {
        String path = "D:\\Coding\\Java\\TestJava\\testdata\\";
        try {
            File inFile = new File(path + "in.txt");
            File outFile = new File(path + "out.txt");
            InputStreamReader inSr = new InputStreamReader( new FileInputStream(inFile));
            BufferedReader inBr = new BufferedReader(inSr);
            
            OutputStreamWriter outSw = new OutputStreamWriter( new FileOutputStream(outFile));
            BufferedWriter outBw = new BufferedWriter(outSw); 
            
            String line = "";
            while ((line = inBr.readLine()) != null)
            {
                outBw.write(line + "\r\n");
            }
            outBw.close();
            outSw.close();
            inBr.close();
            inSr.close();            
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }        
    }
}