个人中心
gpt4 book ai didi

java - 创建一个组合来自两个对象的字段的 ArrayList？

转载 作者：行者123 更新时间：2023-11-29 04:24:32 25 4
gpt4 key购买 nike

<分区>

我是 Java 新手，正在使用 BlueJ。

项目背景概述。

我正在尝试创建一个俱乐部数据库(数组列表，而不是实际数据库)，用户可以在其中将新登山者(姓名、年龄、性别)和他们攀登的山峰(姓名、高度)添加到数组列表中。

我已经创建了 Climber 类和 mountain 类。我还为登山者创建了一个 ArrayList 并可以添加到这个数组中。我的问题是.. 如何将登山者添加到登山者 ArrayList，并能够同时添加他们攀登的山峰及其高度？

添加登山者的方法需要同时访问Climber和Mountain类？我是否需要将 Mountain 类的字段传递给 Climber？

虽然解决问题的代码值得赞赏，但如果向我展示正确的方向会有所帮助，这样我就能更多地理解它!

谢谢。

 import java.util.ArrayList;
import java.util.Scanner;
/**
 * Write a description of class ClubStats here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class ClubStats
{
    // An ArrayList for storing climber details.
    private ArrayList<Climber> climbers;

    /**
    * Constructor for objects of class ClubStats
    */
    public ClubStats()
   {
       // Initialise instance variables.
       climbers = new ArrayList<Climber>();
    }

    public void addClimber(Climber newName)
    {
        climbers.add(newName);
    }

   public Climber getClimber(String name)
   {
       Climber foundClimber = null;
       int index = 0;
       boolean searching = true;

       while(searching && index < climbers.size()) {
           Climber climber = climbers.get(index);
           if(climber.getName().equals(name)) {
                   searching = false;
                   foundClimber = climber;
                }
                else {
                    System.out.println(name + " not found");
                    index++;
                }
            }
            return foundClimber;
        }

    public void displayList()
    {
        for (int item = 0; item<climbers.size();
        item++) {
            Climber climber = climbers.get(item);
            System.out.println(climber.getName() + (" ") + climber.getAge() + (" ") 
            + climber.getGender());
        }
    }
}


public class Climber
{
    // Instance variables.
    // The climber name.
    private String name;
    // The climber age
    private int age;
    // The climber gender.
    private String gender;


    /**
     * Constructor for objects of class Climber
     */
    public Climber (String newName, int newAge, String newGender)
    {
        // Initialise instance variables.
        name = newName;
        age = newAge;
        gender = newGender;

    }

    /**
     * Accessor method for climber's name.
     */
    public String getName()
    {
        return name;
    }

    /**
     * Set the climber's name.
     */
    public void setName(String newName)
    {
        name = newName;
    }

    /**
     * Accessor method for climber's age.
     */
    public int getAge()
    {
        return age;

    }

    /**
     * Set the climber's age.
     */
    public void setAge(int newAge)
    {
        age = newAge;

    }

     /**
     * Set the climer's gender.
     */
   public String getGender()
   {
       return gender;
   } 

   /**
     * Accessor method for climber's gender.
     */
    public void getGender(String newGender)
    {
        gender = newGender;

    }


}

public class Mountain
{
    // Instance variables.
    private double height;
    private String name;

    /**
     * Constructor for objects of class Mountain
     */
    public Mountain(String mName, double mHeight)
    {
        // Initialise instance variables
        name = mName;
        height = mHeight;
    }

    /**
     * Accessor method for mountain name.
     */
    public String getName()
    {
        return name;
    }

    /**
     * Set the mountain name.
     */
    public void setName(String newName)
    {
        name = newName;
    }

    /**
     * Accessor method for mountain height.
     */
    public double getHeight()
    {
        // put your code here
        return height;
    }

    /**
     * Set the mountain height.
     */
    public void setHeight(double newHeight)
    {
        height = newHeight;
    }
}

25 4 0
文章推荐： java - 如何在 iText 7 中创建/设置表格单元格和边框的自定义颜色？
文章推荐： php - 无法使用 codeigniter 查询计算有条件的结果
文章推荐： python - MySQLdb : Operand should contain 1 column(s)
文章推荐： java - Log4j2/slf4j - 是否应该从类路径中删除 commons-logging.jar？
行者123
个人简介

我是一名优秀的程序员,十分优秀！

滴滴打车优惠券免费领取
滴滴打车优惠券
全站热门文章
Copyright 2021 - 2024 cfsdn All Rights Reserved 蜀ICP备2022000587号
广告合作:1813099741@qq.com 6ren.com