javai/o流内存流

package com.demo1;import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
//内存流
public class Test2 {public static void main(String[] args) {String path &＃61;"c:\\c.txt";String path1 &＃61;"c:\\d.txt";File file &＃61; new File(path);File file1 &＃61; new File(path1);FileInputStream stream &＃61; null;//读文件FileOutputStream fos &＃61; null;ByteArrayOutputStream bos &＃61; null;//写入内存try {bos &＃61; new ByteArrayOutputStream();fos&＃61; new FileOutputStream(file1);stream &＃61; new FileInputStream(file);byte []b &＃61; new byte[20];int len &＃61; 0;while((len&＃61;stream.read(b))!&＃61;-1){bos.write(b);//写入内存bos.flush();}//byte [] b2 &＃61; new byte[20];//int len2 &＃61;0;//while((len&＃61;bis.read(b2))!&＃61;-1){
// fos.write(b2,0,len2);
// fos.flush();//}bos.writeTo(fos);//从内存写入到文件bos.close();stream.close();fos.close();} catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}
}
}