add readme for factory method

saadati944 · Apr 25, 2021 · 99d895b · 99d895b
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diff --git a/README.md b/README.md
@@ -47,6 +47,7 @@ Also if you know another algorithm or data structure that was not in here, creat
  - [Creational patterns](./design_patterns/creational_patterns)
  - [Abstract factory pattern](./design_patterns/creational_patterns/abstract_factory_pattern)
  - [Builder pattern](./design_patterns/creational_patterns/builder_pattern)
+ - [Builder pattern](./design_patterns/creational_patterns/factory_method)
 
 # Contributing
 

diff --git a/design_patterns/creational_patterns/factory_method/README.md b/design_patterns/creational_patterns/factory_method/README.md
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+# Factory method
+
+![factory1](https://upload.wikimedia.org/wikipedia/commons/4/43/W3sDesign_Factory_Method_Design_Pattern_UML.jpg)
+
+[read more in wikipedia](https://en.wikipedia.org/wiki/Factory_method_pattern)
+
+In class-based programming, the factory method pattern is a creational pattern that uses factory methods to deal with the problem of creating objects without having to specify the exact class of the object that will be created. This is done by creating objects by calling a factory method—either specified in an interface and implemented by child classes, or implemented in a base class and optionally overridden by derived classes—rather than by calling a constructor.