软件设计之抽象工厂模式

package test;
import java.util.Scanner;
public class test3 {
    public static void main(String[] args)
    {
        Factorys factory=null;
        ProductA productA=null;
        ProductB productB=null;
        System.out.println("请输入你想要的产品");
        Scanner sc=new Scanner(System.in);
        String type=sc.next();
        switch (type)
        {
            case "A1":factory=new Factory1();productA=factory.createProductA();productA.info();break;
            case "A2":factory=new Factory2();productA=factory.createProductA();productA.info();break;
            case "B1":factory=new Factory1();productB=factory.createProductB();productB.info();break;
            case "B2":factory=new Factory2();productB=factory.createProductB();productB.info();break;
        }
    }

}
interface Factorys{
    public ProductA createProductA();
    public ProductB createProductB();
}
class Factory1 implements Factorys{
    @Override
    public ProductA createProductA()
    {
        return new ProductA1();
    }
    @Override
    public ProductB createProductB()
    {
        return new ProductB1();
    }
}
class Factory2 implements Factorys{
    @Override
    public ProductA createProductA()
    {
        return new ProductA2();
    }
    public ProductB createProductB()
    {
        return new ProductB2();
    }
}
interface ProductA{
    public void info();
}
class ProductA1 implements ProductA{
    @Override
    public void info()
    {
        System.out.println("这是产品A1");
    }
}
class ProductA2 implements ProductA{
    @Override
    public void info()
    {
        System.out.println("这是产品A2");
    }
}
interface ProductB{
    public void info();
}
class ProductB1 implements ProductB{
    @Override
    public void info()
    {
        System.out.println("这是产品B1");
    }
}
class ProductB2 implements ProductB{
    @Override
    public void info()
    {
        System.out.println("这是产品B2");
    }
}