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 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。

/** * 原型接口 * */public  interface Prototype extends Cloneable{			public abstract Prototype copy();		}

/** * 地址类，定义为具体类型（拷贝时只复制引用） * */public class Address {		private String id;	private String telephone;	private String address;		public String getId() {		return id;	}	public void setId(String id) {		this.id = id;	}	public String getTelephone() {		return telephone;	}	public void setTelephone(String telephone) {		this.telephone = telephone;	}	public String getAddress() {		return address;	}	public void setAddress(String address) {		this.address = address;	}}

/** * 部门类（实现原型类方法，提供深拷贝） * */public class Department implements Prototype{			private String id;	// 部门名称	private String name;	public Prototype copy() {				Department department = null;		try {			department = (Department)this.clone();		} catch (CloneNotSupportedException e) {			e.printStackTrace();		}		return department;	}	public String getId() {		return id;	}	public void setId(String id) {		this.id = id;	}	public String getName() {		return name;	}	public void setName(String name) {		this.name = name;	}}

/** * 具体的原型类1 * */public class ConcretePrototype1 implements Prototype {		// 姓名	private String name;		// 地址	private Address address;		// 部门	private Department department;	public Prototype copy() {					Prototype prototype = null;		try {						// 调用clone()方法时，必须实现java.lang.Cloneable接口			prototype = (Prototype)this.clone();		} catch (CloneNotSupportedException e) {			e.printStackTrace();		}		return prototype;	}	public void setName(String name) {		this.name = name;			}	public String getName() {		return name;	}	public Address getAddress() {		return address;	}	public void setAddress(Address address) {		this.address = address;	}	public Department getDepartment() {		return department;	}	public void setDepartment(Department department) {				// 此处为引用类型department的深拷贝		this.department = (Department)department.copy();	}}

public class Main {	public static void main(String[] args) {				ConcretePrototype1 c1 = new ConcretePrototype1();		c1.setName("C1");		Address address = new Address();		address.setTelephone("1359978768");		address.setAddress("厦门");		c1.setAddress(address);		Department department = new Department();		department.setName("开发部");		c1.setDepartment(department);				ConcretePrototype1 copyC1 =(ConcretePrototype1) c1.copy();		System.out.println(copyC1.getName());		System.out.println(copyC1.getAddress().getAddress());				// c1的改变不会影响copyC1的变化		c1.setName("C2");			System.out.println(copyC1.getName());//输出仍为C1				// 此时c1的改变会影响copyC1的变化，因为clone()实现的是浅拷贝，address为引用类型，只复制引用		address.setAddress("北京");		c1.setAddress(address);		System.out.println(copyC1.getAddress().getAddress());//输出变为北京				//此时c1的改变不会影响copyC1的变化，因为Department引用类型实现了深拷贝。		department.setName("总经理室");		c1.setDepartment(department);		System.out.println(copyC1.getDepartment().getName());//输出仍为开发部			}}

输出结果为：

C1厦门C1北京开发部

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