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Template pattern

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Fahim Fana
Fahim Fana

The template method pattern defines the steps of an algorithm in a template method that subclasses can inherit. Subclasses are allowed to override individual steps but not change the overall sequence of steps. For example, a template method for building a house defines steps like laying the foundation, adding pillars, and installing walls and windows, with concrete and wooden house subclasses implementing specific versions of each step while keeping the overall order. Similarly, a car template method defines steps like building the skeleton, installing the engine, and adding doors for subclasses like BMW and Ferrari cars.

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TEMPLATEPATTERN
Introduction Take a look at the definition of a template Template is a preset format, used as a starting point for a particular application so that the format does not have to be recreated each time it is used. Template Method Pattern defines a sequence of steps of an algorithm. The subclasses are allowed to override the steps but not allowed to change the sequence.
RealTimeExample-01 Template Method [Build a House] 1)Building Foundation 2)Building Pillars 3)Building Walls 4)Building Windows Concrete House Wooden House Foundation Pillars Walls Windows
RealTimeExample-02 Car Skeleton Car Engine Car Door BMW Car Ferrari Car Template Method[Build Car] 1)Build Car Skeleton 2)Install Engine 3)Install Door
Template pattern

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Template pattern

  • 2. Introduction Take a look at the definition of a template Template is a preset format, used as a starting point for a particular application so that the format does not have to be recreated each time it is used. Template Method Pattern defines a sequence of steps of an algorithm. The subclasses are allowed to override the steps but not allowed to change the sequence.
  • 3. RealTimeExample-01 Template Method [Build a House] 1)Building Foundation 2)Building Pillars 3)Building Walls 4)Building Windows Concrete House Wooden House Foundation Pillars Walls Windows
  • 4. RealTimeExample-02 Car Skeleton Car Engine Car Door BMW Car Ferrari Car Template Method[Build Car] 1)Build Car Skeleton 2)Install Engine 3)Install Door

Editor's Notes

  • #3: template is a preset format, used as a starting point for a particular application so that the format does not have to be recreated each time it is used.