25 lines
708 B
Java

// patterns/Facade.java
// (c)2021 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 { A(int x) {} }
class B { B(long x) {} }
class C { 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);
}
}