文件的复制粘贴
public class demo03 {
public static void main(String[] args) throws IOException {
double start = System.nanoTime();
FileInputStream fis = new FileInputStream("09_IOAndProperties\\src\\com\\itheima\\demo02\\InputStream\\Demo02InputStream.java");
FileOutputStream fos = new FileOutputStream("09_IOAndProperties\\src\\com\\itheima\\demo02\\InputStream\\x.java");
byte[] bytes= new byte[1024];
int read = fis.read(bytes);
fos.write(bytes,0,read);
double end = System.nanoTime();
System.out.println("共"+(end-start)+"毫秒");
fis.clse();
fos.close();
}
}