Java聚合类场景下用户输入存入ArrayList时构造方法参数不匹配问题求解

• 参数数量不匹配：你定义的treatment类构造方法仅接收3个入参，依次为String treatment_type、String treatment_procedure、booking bookings，调用时你传入了6个String参数，数量不匹配触发第一次报错。
• 参数类型与顺序错误：你尝试传3个参数时，直接将患者姓名、就诊日期这类String类型变量传入了要求booking类型的参数位，触发类型转换报错；同时你搞错了treatment构造方法的入参顺序，前两个参数是诊疗类信息，患者、医生、预约时间都属于booking类的属性，不能直接传给treatment的构造。

你需要先把收集到的患者名、医生名、预约日期、预约时间四个参数实例化为booking对象，再按treatment构造方法要求的参数顺序传入即可，修正后的驱动类代码如下：

public static void treatments(){
    Scanner sc = new Scanner(System.in);
    System.out.println("Please provide treatment information");
    System.out.println("Enter the Patient's name :");
    String pname = sc.next();
    System.out.println("Enter the doctors name :");
    String dname = sc.next();
    System.out.println("Enter the date of the appointment :");
    String date = sc.next();
    System.out.println("Enter your time of appointment :");
    String time = sc.next();
    System.out.println("Enter the type of treatment :");
    String treattype = sc.next();
    System.out.println("Enter the specifics of the procedure :");
    String specifics = sc.next();
    // 先实例化booking对象
    booking newBooking = new booking(pname, dname, date, time);
    // 按构造方法要求的参数顺序实例化treatment对象
    treatment newtreatment = new treatment(treattype, specifics, newBooking);
    treatmentlist.add(newtreatment);
    System.out.println("The dentist has been registered Successfully");
}

补充优化建议：Java编码规范要求类名采用大驼峰格式，建议将treatment改为Treatment、booking改为Booking，避免和变量名、属性名混淆。

内容的提问来源于stack exchange，提问作者chicken nuggets