利用IO实现文件复制--一行代码

利用jdk1.7的工具类 

Files Paths StandarCopyOption

完成

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;

public class testnion {
	public static void main(String[] args) throws IOException {
		Files.copy(Paths.get("D:\\Nio.txt"), Paths.get("E:\\NIO2.txt"), StandardCopyOption.REPLACE_EXISTING);
	}

}