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Facade.java
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36 lines (30 loc) · 791 Bytes
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package designpattern.facade;
/**
* 外观类，它需要了解所有的子系统的方法或属性，进行组合，以备外界调用
*
* @author liu yuning
*
*/
public class Facade {
SubSystemOne subSystemOne;
SubSystemTwo subSystemTwo;
SubSystemThree subSystemThree;
SubSystemFour subSystemFour;
public Facade() {
subSystemOne = new SubSystemOne();
subSystemTwo = new SubSystemTwo();
subSystemThree = new SubSystemThree();
subSystemFour = new SubSystemFour();
}
public void methodA() {
System.out.println("方法组A:");
subSystemOne.methodOne();
subSystemTwo.methodTwo();
subSystemFour.methodFour();
}
public void methodB() {
System.out.println("方法组B:");
subSystemThree.methodThree();
subSystemFour.methodFour();
}
}