java - 父类(super class)重置已经激活的对象

这有点困难，但我会尽力解释我的问题。我创建了一个程序，它有一个父类(super class) (RichIndustrialist) 两个子类(PredecessorRichIndustrialist 和另一个我没有添加的)和这些子类的 4 个子类(CrazyRichIndustrialist 和另外 3 个)。现在，程序太难解释了，但问题其实很简单。我的构造函数在父类(super class)中，每个子类都使用它来初始化。每次我创建一个像 CrazyRichIndustrialist 这样的新子类对象时，它都会将所有已经存在的子类(来自任何子类)重置为新对象的值。我不知道如何解决这个问题。先感谢您...
RichIndustrialist :

package Mortal;

import java.util.Random;

public class RichIndustrialist implements Mortal {

    private static String Name;
    private static double holdings;
    private static int Alive;

    public RichIndustrialist(String Rich_Name, double Rich_holdings) {
        this.Name = Rich_Name;
        this.holdings = Rich_holdings;
        this.Alive = 1;
    }

    public int isAlive() {
        return (this.Alive);
    }

    public void setHoldings(double new_holdings) {
        this.holdings = new_holdings;
    }

    public double getHoldings() {
        return (this.holdings);
    }

    public String getName() {
        return (this.Name);
    }

    public void die() {
        this.Alive = 0;
    }

    public void getHeritage(double heritage) {
        this.holdings = this.holdings + heritage;
    }
}

PredecessorRichIndustrialist :

package Mortal;

import java.util.Arrays;

public class PredecessorRichIndustrialist extends RichIndustrialist {

    private static String Name;
    private static double holdings;
    private RichIndustrialist[] successors = {};
    private static int Alive;

    public PredecessorRichIndustrialist(String Rich_Name, double Rich_holdings) {
        super(Rich_Name,Rich_holdings);
    }

    public void die() {
        super.die();
    }

    public void Inheritance(double holdings, RichIndustrialist[] successors) {
        int i = 0;
        while (i < successors.length) {
            int Alive = successors[i].isAlive();
            System.out.println(Alive);
            if (Alive == 0) {
                removeSuccessor(successors[i]);
                i++;
            } else {
                i++;
            }
        }
    }

    public void addSuccessor(RichIndustrialist new_successor) {
        RichIndustrialist[] new_successors = new RichIndustrialist[successors.length + 1];
        if (successors.length == 0) {
            new_successors[0] = new_successor;
            successors = new_successors;
        } else {
            for (int i = 0; i < successors.length; i++) {
                new_successors[i] = successors[i];
            }
            new_successors[new_successors.length - 1] = new_successor;
        }
        this.successors = new_successors;
    }

    public void removeSuccessor(RichIndustrialist removed_successor) {
        RichIndustrialist[] new_successors = new RichIndustrialist[this.successors.length - 1];
        int j = 0;
        for (int i = 0; i < this.successors.length; i++) {
            if (!this.successors[i].equals(removed_successor)) {
                new_successors[j] = this.successors[i];
            } else {
                j--;
            }
            j++;
        }
    }

    public RichIndustrialist[] getSuccessors() {
        return successors;
    }
}

CrazyRichIndustrialist :

package Mortal;

import java.util.Random;

public class CrazyRichIndustrialist extends PredecessorRichIndustrialist {

    private RichIndustrialist[] successors = {};
    private static String Name;
    private static double holdings;
    private static int Alive;

    public CrazyRichIndustrialist(String Rich_Name, double Rich_holdings) {
        super(Rich_Name,Rich_holdings);
    }
    public void die() {
        super.die();
        Inheritance(getHoldings(),getSuccessors());
    }

    public void addSuccessor(RichIndustrialist new_successor) {
        super.addSuccessor(new_successor);
    }

    public void removeSuccessor(RichIndustrialist removed_successor) {
        super.removeSuccessor(removed_successor);
    }

    public void Inheritance (double holdings , RichIndustrialist[] successors) {
        super.Inheritance(holdings, successors);
        for (int i=0; i<successors.length-1; i++)
        {
            double random = new Random().nextDouble();
            double amount = this.holdings * random;
            successors[i].getHeritage(amount);
            holdings = this.holdings - amount;
        }
        successors[successors.length-1].getHeritage(this.holdings);
        this.holdings = 0;
    }

    public String getName(){
        return super.getName();
    }
    public double getHoldings(){
        return super.getHoldings();
    }
    public RichIndustrialist[] getSuccessors(){
        return super.getSuccessors();
    }
    public void setHoldings(double new_holdings){
        super.setHoldings(new_holdings);
    }
    public int isAlive() {
        return super.isAlive();
    }
    public void getHeritage(double heritage) {
        super.getHeritage(heritage);
    }

}

最佳答案

您的大部分字段都是 static 。这意味着您的类的所有实例共享相同的值。当您调用构造函数时，会修改静态字段，这会影响所有现有实例。

例如:

this.Name = Rich_Name;

实际上应该写成:

RichIndustrialist.Name = Rich_Name;

您可以在 this tutorial 中阅读实例和类(或静态)成员之间的区别。

关于java - 父类(super class)重置已经激活的对象，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/13969580/