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  1.  
  2. import java.util.*;
  3. import java.lang.*;
  4. import java.io.*;
  5.  
  6. class Main
  7. {
  8. 	public static void main (String[] args) throws java.lang.Exception
  9. 	{
  10. 		Pizza myPizza = new PizzaBuilder()
  11. 			.setDough(Dough.WHITE)
  12. 			.setCheese(Cheese.WHITE)
  13. 			.addTopping(Topping.Kittens)
  14. 			.addTopping(Topping.Salami)
  15. 			.buildPizza();
  16. 	}
  17.  
  18. 	static enum Dough{
  19. 		WHITE, BROWN
  20. 	}
  21. 	static enum Cheese{
  22. 		WHITE, BROWN
  23. 	}
  24. 	static enum Topping{
  25. 		Kittens, Onions, Salami
  26. 	}
  27.  
  28. 	static class Pizza{
  29.  
  30. 		private Dough dough;
  31. 		private Cheese cheese;
  32. 		private HashSet<Topping> toppings;
  33.  
  34. 		private Pizza(Dough dough, Cheese cheese, HashSet<Topping> toppings){
  35. 			this.dough = dough;
  36. 			this.cheese = cheese;
  37. 			this.toppings = toppings;
  38. 		}
  39.  
  40. 		//add some getters
  41.  
  42. 	}
  43.  
  44. 	static class PizzaBuilder{
  45.  
  46. 		private Dough dough;
  47. 		private Cheese cheese;
  48. 		private HashSet<Topping> toppings = new HashSet<Topping>();
  49.  
  50. 		public PizzaBuilder(){
  51.  
  52. 		}
  53. 		public PizzaBuilder setDough(Dough dough){
  54. 			this.dough = dough;
  55. 			return this;
  56. 		}
  57. 		public PizzaBuilder setCheese(Cheese cheese){
  58. 			this.cheese = cheese;
  59. 			return this;
  60. 		}
  61. 		public PizzaBuilder addTopping(Topping topping){
  62. 			this.toppings.add(topping);
  63. 			return this;
  64. 		}
  65. 		public Pizza buildPizza(){
  66. 			return new Pizza(this.dough, this.cheese, this.toppings);
  67. 		}
  68.  
  69. 	}
  70.  
  71. }
  72.  
  73.  
  74.  
Success #stdin #stdout 0.1s 320576KB
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https://ideone.com/YeKYcp
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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