软件设计模式————(装饰模式)
[实验任务一]:手机功能的升级
用装饰模式模拟手机功能的升级过程:简单的手机(SimplePhone)在接收来电时,会发出声音提醒主人;而JarPhone除了声音还能振动;更高级的手机(ComplexPhone)除了声音、振动外,还有灯光闪烁提示。
实验要求:
1.提交类图;
2.提交源代码;
package test11; public abstract class Phone { public void serviceCall() { } } package test11; public class ComplexPhone extends PhoneDecoration { public ComplexPhone(Phone phone) { super(phone); } @Override public void serviceCall() { super.serviceCall(); System.out.println("ComplexPhone:发出声音、震动并灯光闪烁提醒主人电话来了"); } } package test11; public class PhoneDecoration extends Phone { private Phone phone = null; public PhoneDecoration(Phone phone) { if (phone != null) { this.phone = phone; } else { this.phone = new SimplePhone(); } } @Override public void serviceCall() { phone.serviceCall(); } } package test11; public class Client { public static void main(String[] args) { Phone p1 = new SimplePhone(); System.out.println("生产简单手机"); p1.serviceCall(); System.out.println("***********************"); Phone p2 = new JarPhone(p1); System.out.println("升级为JarPhone手机"); p2.serviceCall(); System.out.println("***********************"); Phone p3 = new ComplexPhone(p2); System.out.println("升级为ComplexPhone手机"); p3.serviceCall(); } } package test11; public class JarPhone extends PhoneDecoration { public JarPhone(Phone phone) { super(phone); } @Override public void serviceCall() { super.serviceCall(); System.out.println("JarPhone:发出声音并震动提醒主人电话来了"); } } package test11; public class SimplePhone extends Phone { public void serviceCall() { System.out.println("SimplePhone:发出声音提醒主人电话来了"); } }