public class MyTest {
	public static void main(String[] args) {
		try {
			test();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	public static void test() throws Exception {
		String name="G:"+File.separator+"1.txt";
		String name1="H:"+File.separator+"2.txt";
		BufferedInputStream bis=new BufferedInputStream(new FileInputStream(name));
		BufferedOutputStream bos=new BufferedOutputStream(new FileOutputStream(name1));
		int b=0;
		while ((b = bis.read()) != -1) {
			bos.write(b);
		}
		bos.close();
		bis.close();
 	}
}