Java I/O - 如何读取文件到字节数组，并使用java.nio.file.Files保存

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;

public class Main {

  public static void main(String[] args) throws IOException {
    Path path = Paths.get("/users.txt");
    byte[] contents = Files.readAllBytes(path);

    Path newPath = Paths.get("/newUsers.txt");

    Files.write(newPath, contents, StandardOpenOption.CREATE);

  }
}