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  1. // Abstract Factory
  2. interface AbstractFactory {
  3.     AbstractProduct createProduct();
  4. }
  5.  
  6. // Concrete Factory 1
  7. class ConcreteFactory1 implements AbstractFactory {
  8.     public AbstractProduct createProduct() {
  9.         return new ConcreteProduct1();
  10.     }
  11. }
  12.  
  13. // Concrete Factory 2
  14. class ConcreteFactory2 implements AbstractFactory {
  15.     public AbstractProduct createProduct() {
  16.         return new ConcreteProduct2();
  17.     }
  18. }
  19.  
  20. // Abstract Product
  21. interface AbstractProduct {
  22.     void operation();
  23. }
  24.  
  25. // Concrete Product 1
  26. class ConcreteProduct1 implements AbstractProduct {
  27.     public void operation() {
  28.         System.out.println("ConcreteProduct1 operation");
  29.     }
  30. }
  31.  
  32. // Concrete Product 2
  33. class ConcreteProduct2 implements AbstractProduct {
  34.     public void operation() {
  35.         System.out.println("ConcreteProduct2 operation");
  36.     }
  37. }
  38.  
  39. // Client
  40. class Client {
  41.     private AbstractFactory factory;
  42.  
  43.     public Client(AbstractFactory factory) {
  44.         this.factory = factory;
  45.     }
  46.  
  47.     public void executeOperation() {
  48.         AbstractProduct product = factory.createProduct();
  49.         product.operation();
  50.     }
  51. }
  52.  
  53. // Usage
  54. public class Main {
  55.     public static void main(String[] args) {
  56.         AbstractFactory factory1 = new ConcreteFactory1();
  57.         Client client1 = new Client(factory1);
  58.         client1.executeOperation();
  59.  
  60.         AbstractFactory factory2 = new ConcreteFactory2();
  61.         Client client2 = new Client(factory2);
  62.         client2.executeOperation();
  63.     }
  64. }
  65.  
Success #stdin #stdout 0.09s 44828KB
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ConcreteProduct1 operation
ConcreteProduct2 operation
https://ideone.com/kONJQ7
language:
Java (HotSpot 12)
created:
1 year ago
visibility:
secret

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