执行windows命令行命令后,如何在Java中获取返回码

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class CommandExecution {
    public static void main(String[] args) {
        try {
            // 执行命令
            Process process = Runtime.getRuntime().exec("cmd /c <command>");

            // 获取命令执行后的返回码
            int exitCode = process.waitFor();

            // 打印返回码
            System.out.println("返回码：" + exitCode);
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}