bifiledemo.java

java经典的源代码 我非常喜欢这个源代码 对于编程很有好处

//biFileDemo.Java
import java.io.*;
public class biFileDemo{
  public static void main(String args[]){
FileInputStream in =new FileInputStream("c:\\java\\delttsul.exe");
     FileOutputStream out=new FileOutputStream("c:\\java\\my.exe");
     System.out.println("file size:"+in.available());
     byte b[]=new byte[in.available()];
     in.read(b);
     out.write(b);
     System.out.println("file copyed and renamed");
     in.close();;
     out.close();
   }
}