文件内容的输出io

package bbb;
import java.io.*;
public class ccc {public static void main(String[]args) throws IOException{
File file=new File("d:/1data.txt");
FileOutputStream out=new FileOutputStream(file);
byte buy[]="12345abcdef@#%&*软件工程".getBytes();
out.write(buy);
out.close();
BufferedReader fin =  new BufferedReader(new FileReader("d:/1data.txt")   );
String ss=fin.readLine();
while(ss!=null){System.out.println(ss);ss=fin.readLine();}
}
}