原型模式

用原型实例指定创建对象的种类，并且通过拷贝这些原型创建新的对象。
就是从一个对象再创建另外一个可定制的对象，而且不需知道任何创造的细节。

浅复制

public class WorkExperience{

    private String timeArea, compary;


    public String getTimeArea() {
        return timeArea;
    }

    public void setTimeArea(String timeArea) {
        this.timeArea = timeArea;
    }

    public String getCompary() {
        return compary;
    }

    public void setCompary(String compary) {
        this.compary = compary;
    }

   
}



/**
 * super.clone()，
 * 如果字段是值类型，则对该字段执行逐位复制
 * 如果字段是引用类型，则复制引用但不复制引用对象
 * 因此，原始对象及其复本引用同一对象
 * 浅复制指向的还是同一对象。所有的对其他对象的引用都仍然指向原来的对象。
 */
public class Resume implements Cloneable {

    private String name, sex, age;

    private WorkExperience experience;

    /**
     * 无参构造方法
     */
    public Resume() {

    }

    /**
     * 有参构造方法
     *
     * @param name
     */
    public Resume(String name) {
        this.name = name;
        experience = new WorkExperience();
    }

    public String getSex() {
        return sex;
    }

    /**
     * 设置个人信息
     *
     * @param sex
     * @param age
     */
    public void SetPersonalInfo(String sex, String age) {
        this.sex = sex;
        this.age = age;
    }

    public WorkExperience getExperience() {
        return experience;
    }

    /**
     * 设置工作经历
     *
     * @param timeArea
     * @param compary
     */
    public void SetWorkExperience(String timeArea, String compary) {
        experience.setCompary(compary);
        experience.setTimeArea(timeArea);
    }

    public void Display() {
        System.out.println(name + " " + sex + " " + age);
        System.out.println("工作经历 " + experience.getTimeArea() + " " + experience.getCompary());
    }

    @Override
    public Object clone() throws CloneNotSupportedException {
       
        return super.clone();
    }
}

/**
 *  通过R1和R2的getExperience()、R1和R3的getExperience()对象比较可以看出，R1、R2、R3尽管显示了不同的数据，但是还是只想同一个对象
 *  通过R1和R2的getSex()、R1和R3的getSex()对象比较可以看出，R2在设置新值后显示与R1指向不同的对象，R3没有设置新的值则还是显示同一个对象。
 */
public class TestUtil {

    public static void main(String[] args) throws CloneNotSupportedException {
        
        Resume r1 = new Resume("rabbit1");
        r1.SetPersonalInfo("女", "18");
        r1.SetWorkExperience("2001", "柠檬客");
        r1.Display();

        Resume r2 = (Resume) r1.clone();
        r2.SetPersonalInfo("男", "19");
        r2.SetWorkExperience("2003", "柠檬客1");
        r2.Display();

        System.out.println("R1和R2比较：" + (r1.getExperience() == r2.getExperience()));
        System.out.println("R1和R2的name比较：" + (r1.getSex() == r2.getSex()));

        Resume r3 = (Resume) r1.clone();
        r2.SetPersonalInfo("女", "18");
        r2.SetWorkExperience("2004", "柠檬客2");
        r2.Display();
        System.out.println("R1和R2比较：" + (r1.getExperience() == r3.getExperience()));
        System.out.println("R1和R2的name比较：" + (r1.getSex() == r2.getSex()));



    }
}

深复制

public class WorkExperience implements Cloneable {

    private String timeArea, compary;


    public String getTimeArea() {
        return timeArea;
    }

    public void setTimeArea(String timeArea) {
        this.timeArea = timeArea;
    }

    public String getCompary() {
        return compary;
    }

    public void setCompary(String compary) {
        this.compary = compary;
    }

    @Override
    public Object clone() throws CloneNotSupportedException {
        return super.clone();
    }
}


/**
 * 实现原型模式的深复制
 */
public class Resume implements Cloneable {

    private String name, sex, age;

    private WorkExperience experience;

    /**
     * 无参构造方法
     */
    public Resume() {

    }

    /**
     * 有参构造方法
     *
     * @param name
     */
    public Resume(String name) {
        this.name = name;
        experience = new WorkExperience();
    }


    private Resume(WorkExperience experience) throws CloneNotSupportedException {
        this.experience = (WorkExperience) experience.clone();
    }


    public String getSex() {
        return sex;
    }

    /**
     * 设置个人信息
     *
     * @param sex
     * @param age
     */
    public void SetPersonalInfo(String sex, String age) {
        this.sex = sex;
        this.age = age;
    }

    public WorkExperience getExperience() {
        return experience;
    }

    /**
     * 设置工作经历
     *
     * @param timeArea
     * @param compary
     */
    public void SetWorkExperience(String timeArea, String compary) {
        experience.setCompary(compary);
        experience.setTimeArea(timeArea);
    }

    public void Display() {
        System.out.println(name + " " + sex + " " + age);
        System.out.println("工作经历 " + experience.getTimeArea() + " " + experience.getCompary());
    }

    @Override
    public Object clone() throws CloneNotSupportedException {
        Resume r = new Resume(this.experience);
        r.name = this.name;
        r.sex = this.sex;
        r.age = this.age;
        return r;
    }
}



/**
 *
 */
public class TestUtil {

    public static void main(String[] args) throws CloneNotSupportedException {
      
        Resume r1 = new Resume("rabbit1");
        r1.SetPersonalInfo("女", "18");
        r1.SetWorkExperience("2001", "柠檬客");
        r1.Display();

        Resume r2 = (Resume) r1.clone();
        r2.SetPersonalInfo("男", "19");
        r2.SetWorkExperience("2003", "柠檬客1");
        r2.Display();

        System.out.println("R1和R2比较：" + (r1.getExperience() == r2.getExperience()));
        System.out.println("R1和R2的name比较：" + (r1.getSex() == r2.getSex()));

        Resume r3 = (Resume) r1.clone();
        r2.SetPersonalInfo("女", "18");
        r2.SetWorkExperience("2004", "柠檬客2");
        r2.Display();
        System.out.println("R1和R2比较：" + (r1.getExperience() == r3.getExperience()));
        System.out.println("R1和R2的name比较：" + (r1.getSex() == r2.getSex()));



    }
}