4.抽象工厂模式

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package 抽象工厂模式;

//抽象用户
interface User{
public void InsertUser();
public void GetUser();
}

//Sqlserver用户
class SqlserverUser implements User{
public void InsertUser(){
System.out.println("在SQL Server中给User表增加一条记录");
}
public void GetUser(){
System.out.println("在SQL Server中根据ID得到User表中的一条记录");
}
}

//Oracle用户
class OracleUser implements User{
public void InsertUser(){
System.out.println("在Oracle中给User表增加一条记录");
}
public void GetUser(){
System.out.println("在Oracle中根据ID得到User表中的一条记录");
}
}

//抽象部门
interface Department{
    public void InsertDepartment();
    public void GetUserDepartment();
}

//Sqlserver部门
class SqlserverDepartment implements Department{
    public void InsertDepartment(){
  System.out.println("在SQL Server中给Department表增加一条记录");
    }
    public void GetUserDepartment(){
  System.out.println("在SQL Server中根据ID得到Department表中的一条记录");
    }
}

//Oracle部门
class OracleDepartment implements Department{
    public void InsertDepartment(){
  System.out.println("在Oracle中给Department表增加一条记录");
    }
    public void GetUserDepartment(){
  System.out.println("在Oracle中根据ID得到Department表中的一条记录");
    }
}

//抽象工厂
interface AbstractFactory{
public User CreateUser();
public Department CreateDepartment();
}

//Sqlserver工厂
class SqlserverFactory implements AbstractFactory{
public User CreateUser(){
   return new SqlserverUser();
}
public Department CreateDepartment(){
   return new SqlserverDepartment();
}

}

//Oracle工厂
class OracleFactory implements AbstractFactory{
public User CreateUser(){
   return new OracleUser();
}
public Department CreateDepartment(){
   return new OracleDepartment();
}

}
public class TestClass {
    public static void main(String[] args) {

  AbstractFactory a=new OracleFactory();//只需改这里new OracleFactory()

  User b=a.CreateUser();
  b.InsertUser();
  b.GetUser();

  Department c=a.CreateDepartment();
     c.InsertDepartment();
  c.GetUserDepartment();

}
}