字节流复制

package TestFile;
import java.io.*;


public class TestFilezijieliufuzhi2 {


public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub


FileInputStream f1=new FileInputStream("D:\\HelloWorld.java");
FileOutputStream f2=new FileOutputStream("D:\\HW.java");
int i;
while((i=f1.read())!=-1){         
f2.write(i);
}
f1.close();
f2.close();


}