可以给人搭配嘻哈服或白领装的程序。
我要评论/**
* 人类
* created by callmedevil on 2019/6/23.
*/
public class person {
private string name;
public person(string name) {
this.name = name;
}
public void weartshirts(){
system.out.print("大t恤 ");
}
public void wearbigtrouser(){
system.out.print("垮裤 ");
}
public void wearsneakers(){
system.out.print("破球鞋 ");
}
public void wearsuit(){
system.out.print("西装 ");
}
public void weartie(){
system.out.print("领带 ");
}
public void wearleathershoes(){
system.out.print("皮鞋 ");
}
public void show(){
system.out.println("装扮的" + name);
}
}
/**
* 装扮测试类
* created by callmedevil on 2019/6/23.
*/
public class test {
public static void main(string[] args) {
person devil = new person("devil");
system.out.println("第一种装扮：");
devil.weartshirts();
devil.wearbigtrouser();
devil.wearsneakers();
devil.show();
system.out.println("\n第二种装扮：");
devil.wearsuit();
devil.weartie();
devil.wearleathershoes();
devil.show();
}
}
第一种装扮： 大t恤 垮裤 破球鞋 装扮的devil 第二种装扮： 西装 领带 皮鞋 装扮的devil
如果需要增加“超人”装扮，会导致需要修改“person”类，违背了开放-封闭原则
/**
* 人类
* created by callmedevil on 2019/6/23.
*/
public class person {
private string name;
public person(string name){
this.name = name;
}
public void show(){
system.out.print("装扮的" + name);
}
}
/**
* 服装抽象类
* created by callmedevil on 2019/6/23.
*/
public abstract class finery {
public abstract void show();
}
/**
* t恤 类
* created by callmedevil on 2019/6/23.
*/
public class tshirts extends finery {
@override
public void show() {
system.out.print("大t恤 ");
}
}
/**
* 垮裤 类
* created by callmedevil on 2019/6/23.
*/
public class bigtrouser extends finery {
@override
public void show() {
system.out.print("垮裤 ");
}
}
// 其余子类相似，此处省略
/**
* 装饰升级版测试
* created by callmedevil on 2019/6/23.
*/
public class test {
public static void main(string[] args) {
person devil = new person("devil");
system.out.println("第一种装扮：");
finery tshirts = new tshirts();
finery bigtrouser = new bigtrouser();
finery sneakers = new sneakers();
tshirts.show();
bigtrouser.show();
sneakers.show();
devil.show();
system.out.println("\n第二种装扮：");
finery suit = new suit();
finery tie = new tie();
finery leathershoes = new leathershoes();
suit.show();
tie.show();
leathershoes.show();
devil.show();
}
}
第一种装扮： 大t恤 垮裤 破球鞋 装扮的devil 第二种装扮： 西装 领带 皮鞋 装扮的devil
现在如果要加超人装扮，只要增加子类就可以了，但是这么做虽然把“服装”类和“人”类分离开了，仍然是存在问题的。把“大t恤”、“垮裤”、“破球鞋”和“装扮的devil”一个词一个词显示出来，就好比：你光着身子，当着大家的面，先穿t恤，再穿裤子，再穿鞋，仿佛在跳穿衣舞。。。因此需要一个房间（组合类）来换衣服，同时这个穿的顺序对每个人来说是不固定的，有的人喜欢先穿裤子，再穿鞋，最后穿t恤。。只需要把所需的功能按正确的顺序串联起来进行控制即可。
动态地给一个对象添加一些额外的职责，就增加来说，装饰模式比生成子类更为灵活
/**
* 究极进化人类（concretecomponent）
* created by callmedevil on 2019/6/23.
*/
public class person {
private string name;
public person(){}
public person(string name){
this.name = name;
}
public void show(){
system.out.println("装扮的" + name);
}
}
/**
* 究极进化 服饰类（decorator）
* created by callmedevil on 2019/6/23.
*/
public abstract class finery extends person{
protected person component;
/**
* 装扮
* @param component
*/
public void decorate(person component) {
this.component = component;
}
@override
public void show() {
if (component != null) {
component.show();
}
}
}
/**
* 究极进化 t恤（concretedecorator）
* created by callmedevil on 2019/6/23.
*/
public class tshirts extends finery{
@override
public void show() {
system.out.print("大t恤 ");
super.show();
}
}
/**
* 究极进化 垮裤（concretedecorator）
* created by callmedevil on 2019/6/23.
*/
public class bigtrouser extends finery {
@override
public void show() {
system.out.print("垮裤 ");
super.show();
}
}
// 其余子类相似，此处省略
/**
* 装饰模式测试
* created by callmedevil on 2019/6/23.
*/
public class test {
public static void main(string[] args) {
person devil = new person("devil");
system.out.println("第一种装扮：");
sneakers sneakers = new sneakers();
bigtrouser bigtrouser = new bigtrouser();
tshirts tshirts = new tshirts();
// 装饰
sneakers.decorate(devil);
bigtrouser.decorate(sneakers);
tshirts.decorate(bigtrouser);
tshirts.show();
system.out.println("\n第二种装扮：");
leathershoes leathershoes = new leathershoes();
tie tie = new tie();
suit suit = new suit();
// 装饰
leathershoes.decorate(devil);
tie.decorate(leathershoes);
suit.decorate(tie);
suit.show();
}
}
第一种装扮： 大t恤 垮裤 破球鞋 装扮的devil 第二种装扮： 西装 领带 皮鞋 装扮的devil
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