Question

尝试将Name类从Name类调用到我的Type类，但我不知道该怎么做。我这样做是因为后来我想为每个对象增加价格，这就是我这样做的原因

    public class Name {

        public static void main(String [] args) {
            NameS hotel = new NameS();
            hotel.setName("1. Shangri-La");
            NameS hotel1 = new NameS();
            hotel1.setName("2. Pullman");
            NameS hotel2 = new NameS();
            hotel2.setName("3. Royal Chulan");

            NameS[]hotellist = new NameS [3];
            hotellist[0] = hotel;
            hotellist[1] = hotel1;
            hotellist[2] = hotel2;

            for (int i=0;i<hotellist.length;i++)
            {
                hotellist[i].print();
            }


            NameS mall = new NameS();
            mall.setName("1. 1Utama");
            NameS mall1 = new NameS();
            mall1.setName("2. Paradigm");
            NameS mall2 = new NameS();
            mall2.setName("3. Curve");

            NameS[]malllist = new NameS [3];
            malllist[0] = mall;
            malllist[1] = mall1;
            malllist[2] = mall2;

            for (int i=0;i<malllist.length;i++)
            {
                malllist[i].print();
            }

            NameS restaurant = new NameS();
            restaurant.setName("1. Nandos");
            NameS restaurant1 = new NameS();
            restaurant1.setName("2. Kura");
            NameS restaurant2 = new NameS();
            restaurant2.setName("3. Dining at Sky");

            NameS[]restaurantlist = new NameS [3];
            restaurantlist[0] = restaurant;
            restaurantlist[1] = restaurant1;
            restaurantlist[2] = restaurant2;

            for (int i=0;i<restaurantlist.length;i++)
            {
                restaurantlist[i].print();
            }


        }
   }

Type类

public class Type extends Homepage {

     public static void main(String [] args) {
            ArrayList<ReviewArrayList> list = new ArrayList <ReviewArrayList>();

            String mall;
            String restaurant;
            Scanner input = new Scanner(System.in);
            int choice = 0;
            System.out.println("==============================");
            System.out.println("      Type of Facilities      ");
            System.out.println("==============================");
            System.out.println("1. Hotel");
            System.out.println("2. Shopping Mall");
            System.out.println("3. Restaurant");
            System.out.println("Choice > ");
            choice = input.nextInt();
            if(choice == 1) {

                System.out.println(hotel.getName());
                System.out.println(hotel1.getName());
                System.out.println(hotel2.getName());
        }   
    }
 }

Answer 1

说完

private Name name = new Name();

void() {
    /*name.objectName; calls the Object objectName that is inside the class Name*/
}

Answer 2

在main课程的Name方法中，您创建Array hotellist个NameS个hotellist个对象，然后忽略这些对象。

我的建议是制作malllist，restaurantlist和type公共静态类字段。这意味着您的public class Name { public static NameS[] hotelList = new NameS[3]; public static NameS[] mallList = new NameS[3]; public static NameS[] restaurantList = new NameS[3]; public static void main(String[] args) { NameS hotel = new NameS(); hotel.setName("1. Shangri-La"); NameS hotel1 = new NameS(); hotel1.setName("2. Pullman"); NameS hotel2 = new NameS(); hotel2.setName("3. Royal Chulan"); hotelList[0] = hotel; hotelList[1] = hotel1; hotelList[2] = hotel2; for (int i=0;i<hotelList.length;i++) { hotelList[i].print(); } NameS mall = new NameS(); mall.setName("1. 1Utama"); NameS mall1 = new NameS(); mall1.setName("2. Paradigm"); NameS mall2 = new NameS(); mall2.setName("3. Curve"); mallList[0] = mall; mallList[1] = mall1; mallList[2] = mall2; for (int i=0;i<mallList.length;i++) { mallList[i].print(); } NameS restaurant = new NameS(); restaurant.setName("1. Nandos"); NameS restaurant1 = new NameS(); restaurant1.setName("2. Kura"); NameS restaurant2 = new NameS(); restaurant2.setName("3. Dining at Sky"); restaurantList[0] = restaurant; restaurantList[1] = restaurant1; restaurantList[2] = restaurant2; for (int i=0;i<restaurantList.length;i++) { restaurantList[i].print(); }课程可以访问它们。例如：

Type

现在，在public static void main(String [] args) { ArrayList<ReviewArrayList> list = new ArrayList <ReviewArrayList>(); String mall; String restaurant; Scanner input = new Scanner(System.in); int choice = 0; System.out.println("=============================="); System.out.println(" Type of Facilities "); System.out.println("=============================="); System.out.println("1. Hotel"); System.out.println("2. Shopping Mall"); System.out.println("3. Restaurant"); System.out.println("Choice > "); choice = input.nextInt(); if(choice == 1) { System.out.println(Name.hotelList[0].getName()); System.out.println(Name.hotelList[1].getName()); System.out.println(Name.hotelList[2].getName()); } }课程中，您可以简单地说

test.prototype = { 
  constructor: test,
  myMethod: function() {
    this.myArray.push("ok");
  }
};

Answer 3

这是你从当前班级调用一个对象的方法...... 通过制作公共方法，您可以从其他类到达您的字段。但如果我是你，我只会从一开始就建立一个构造函数来申请名称：）

public class Name
{
    private String name;

    public void setName(String name)
    {
        this.name = name;
    }
}

public class Main
{
    Name myName = new Name();

    public static void main(String[] args)
    {
        myName.setName("Marc");
    }

}

从另一个类调用一个对象

3 个答案: