我创建了一个用户定义的类Date,包含3个属性,day,month,year,然后我将Date类调用到我的Appointment类中,它变成了私有Date日期..现在我需要使用setter和getters ..我知道如何为单个属性创建setter和getter但是对于像setDate这样的整个类,我调用了我的Appointment类,我不知道该怎么做..这是我试图做的但值不是改变
ArrayList<Appointment> ai= new ArrayList();
Appointment ap= new Appointment(date,time);
ap.setDoctor_id("1");
ap.setMedication("w");
ap.setPatient_id("3");
ap.setProblem("pro");
ap.setRoom("ss");
ai.add(ap);
Appointment o=null;
try
{
//Creating a deep clone of ap and assigning it to o
o = (Appointment) ap.clone1();
}
catch (CloneNotSupportedException e)
{
e.printStackTrace();
}
date.setDay(4);
date.setMonth(9);
date.setYear(2000);
o.setDate(date);
o.setRoom("pp");
o.setProblem("Happiness");
o.setMedication("Anti-Happiness pills");
ai.add(o);
Appointment t= (Appointment) o.clone1();
date.setDay(1);
date.setMonth(12);
date.setYear(18);
t.setDate(date);
t.setRoom("p");
t.setProblem("depressin");
t.setMedication("Anti-depression pills");
ai.add(t);
答案 0 :(得分:0)
嗯,你知道如何使用setter作为整数,你可以这样做:
private int setDay(int day) {
this.day = day
}
您还知道如何创建新对象:
Appointment ap= new Appointment(date,time);
对于可能看起来像的构造函数:
public Appointment(Date date, Time time) {
this.date = date;
this.time = time;
}
所以如果你的日期构造函数看起来像:
public Date(int day, int month, int year) {
this.day = day;
this.month = month;
this.year = year;
}
您可以采用与新约会类似的方式创建新日期:
Date newDate = new Date(day, month, year)
你可以用同样的方式制作一个制定者!它看起来像是:
private setDate(int day, int month, int year) {
this.date = new Date(day, month, year);
}
或:
private setDate(Date date) {
this.date = date;
}
对于上述内容,您必须先将日期设为首字母,以便将其称为:
Date newDate = new Date(day,month,year);
setDate(newDate);