OnJava8-Examples/patterns/Facade.java

// patterns/Facade.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.

class A { public A(int x) {} }
class B { public B(long x) {} }
class C { public C(double x) {} }

// Other classes that aren't exposed by the
// facade go here ...

public class Facade {
  static A makeA(int x) { return new A(x); }
  static B makeB(long x) { return new B(x); }
  static C makeC(double x) { return new C(x); }
  public static void main(String[] args) {
    // The client programmer gets the objects
    // by calling the static methods:
    A a = Facade.makeA(1);
    B b = Facade.makeB(1);
    C c = Facade.makeC(1.0);
  }
}