Simple factory Mode

Introduction to simple factory Mode

Simple factory mode: Return instances of one of several possible classes based on the data provided to it. Generally, the classes returned by this method have a common parent class and a common method, but each method executes different tasks and is optimized based on different data.

Instance

Example: A name consists of a surname and a name. Assume that there are two input formats: "horse, Cloud" and "horse cloud". One is "," and the other is space. The first and last names must be retrieved.

Code implementation to create a parent class

 class SplitName    {        private string frName, lName;        public string LName        {            get { return lName; }            set { lName = value; }        }        public string FrName        {            get { return frName; }            set { frName = value; }        }    }

Create a comma-separated name class

 class CommaSplit:SplitName    {        public CommaSplit(string name)        {            int i = name.IndexOf("，");            if (i > 0)            {                FrName = name.Substring(0, i);                LName = name.Substring(i + 1);            }            else            {                FrName = name;                LName = "";            }        }    }

Create a space-separated name class

 class BlankSplit:SplitName    {        public BlankSplit(string name)        {            int i = name.IndexOf(" ");            if (i > 0)            {                FrName = name.Substring(0, i);                LName = name.Substring(i + 1);            }            else            {                FrName = name;                LName = "";            }        }    }

Create a factory

class NameFactory    {        public NameFactory()        { }        public SplitName getName(string name)        {            if (name.IndexOf("，") > 0)            {                return new CommaSplit(name);            }            else            {                return new BlankSplit(name);            }        }    }

Application factory Model

Class program {static void main (string [] ARGs) {console. writeline ("enter your name:"); string name = console. readline (); namefactory = new namefactory (); splitname spname = namefactory. getname (name); console. writeline ("Your surname is {0}", spname. frname); console. writeline ("Your name {0}", spname. lname); console. readkey (true );}}

Summary:

A good programming mode makes the program highly available and easy to maintain in the future, learning programming at 1.1 points. Note: The comma in the program is a comma in Chinese.

Simple factory Mode