hjy30312_DesignPattern_30340_1747172353093.zip

package 抽象工厂; /** * 某地区的农产品市场分南方市场和北方市场，分别销售南方和北方的农产品。 * 其中农产品设计水果和素菜两大类，而水果有北方水果（如梨子）和南方水果（如香蕉）之分， * 蔬菜有北方素菜（如大蒜）和南方蔬菜（如黄瓜）之分。现有客户购买梨子、香蕉各五十斤，大蒜和黄瓜各二十斤， * 请用代码（基于抽象工厂模式）模拟。 * @author hjy * @create 2017/10/26 **/ //水果：抽象产品 interface Fruit { public void display(int i); } //南方水果：抽象产品 class SouthFruit implements Fruit { @Override public void display(int i) { } public Banana getBanana() { return new Banana(); } } //香蕉：南方水果具体产品 class Banana extends SouthFruit { @Override public void display(int i) { System.out.println("购买香蕉" + i + "斤"); } } //北方水果：抽象产品 class NorthFruit implements Fruit { public Pears getPears(){ return new Pears(); } @Override public void display(int i) { } } //梨子：北方水果具体产品 class Pears extends NorthFruit { @Override public void display(int i) { System.out.println("购买梨子" + i + "斤"); } } //蔬菜：抽象产品 interface Vegetables { public void display(int i); } //南方蔬菜：抽象产品 class SouthVegetables implements Vegetables { public Cucumber getCucumber() { return new Cucumber(); } @Override public void display(int i) { } } //黄瓜：具体产品 class Cucumber extends SouthVegetables { @Override public void display(int i) { System.out.println("购买黄瓜" + i + "斤"); } } //北方蔬菜：抽象产品 class NorthVegetables implements Vegetables { public Garlic getGarlic(){ return new Garlic(); } @Override public void display(int i) { } } //大蒜：具体产品 class Garlic extends NorthVegetables { @Override public void display(int i) { System.out.println("购买大蒜" + i + "斤"); } } //市场：抽象工厂 interface MarketFactory { public Fruit buyFruit(); public Vegetables buyVegetables(); } //南具体市场：具体工厂 class SouthMarketFactory implements MarketFactory { @Override public SouthFruit buyFruit() { return new SouthFruit(); } @Override public SouthVegetables buyVegetables() { return new SouthVegetables(); } } //北具体市场：具体工厂 class NorthMarketFactory implements MarketFactory { @Override public NorthFruit buyFruit() { return new NorthFruit(); } @Override public NorthVegetables buyVegetables() { return new NorthVegetables(); } } public class Test2 { public static void main(String[] args) { SouthMarketFactory southMarketFactory = new SouthMarketFactory(); NorthMarketFactory northMarketFactory = new NorthMarketFactory(); SouthFruit southFruit = southMarketFactory.buyFruit(); NorthFruit northFruit = northMarketFactory.buyFruit(); NorthVegetables northVegetables = northMarketFactory.buyVegetables(); SouthVegetables southVegetables = southMarketFactory.buyVegetables(); Pears pears = northFruit.getPears(); Banana banana = southFruit.getBanana(); Garlic garlic = northVegetables.getGarlic(); Cucumber cucumber = southVegetables.getCucumber(); pears.display(50); banana.display(50); garlic.display(20); cucumber.display(20); } }