如何使用java类选择和写入外部windows控制台

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

ProcessBuilder processBuilder = new ProcessBuilder("cmd.exe");

Process process = processBuilder.start();
BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));

Scanner scanner = new Scanner(System.in);
System.out.print("请输入命令：");
String command = scanner.nextLine();

process.getOutputStream().write(command.getBytes());
process.getOutputStream().flush();

String line;
while ((line = reader.readLine()) != null) {
    System.out.println(line);
}

reader.close();
process.getOutputStream().close();
process.destroy();

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

public class ExternalConsole {
    public static void main(String[] args) {
        try {
            ProcessBuilder processBuilder = new ProcessBuilder("cmd.exe");
            Process process = processBuilder.start();
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));

            Scanner scanner = new Scanner(System.in);
            System.out.print("请输入命令：");
            String command = scanner.nextLine();

            process.getOutputStream().write(command.getBytes());
            process.getOutputStream().flush();

            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }

            reader.close();
            process.getOutputStream().close();
            process.destroy();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}