关于Java 设计模式 门面模式 Facade

1、Facade.java

package com.ssm.cts.pattern.facade;

public class Facade {

  private ClassA a = new ClassA();
  private ClassB b = new ClassB();
  private ClassC c = new ClassC();
  
  public void methodA(){
    this.a.doSomethingA();
  }
  
  public void methodB(){
    this.b.doSomethingB();
  }
  
  public void methodC(){
    this.b.doSomethingB();
    this.c.doSomethingC();
  }
}

2、ClassA.java

package com.ssm.cts.pattern.facade;

public class ClassA {

  public void doSomethingA() {
    System.out.println("doSomethingA");
  }
}

3、ClassB.java

package com.ssm.cts.pattern.facade;

public class ClassB {
  
  public void doSomethingB(){
    System.out.println("doSomethingB");
  }
}

4、ClassC.java

package com.ssm.cts.pattern.facade;

public class ClassC {
  
  public void doSomethingC(){
    System.out.println("doSomethingC");
  }
}

5、Demo.java

package com.ssm.cts.pattern.facade;

public class Demo {

  public static void main(String[] args) {
    Facade f = new Facade();
    f.methodC();	
  }

}