LLD-8:Pizza Topping System
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Pizza Topping System - Decorator Pattern Implementation This is an implementation of the...
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Title: LLD-8:Pizza Topping System
URL Source: https://dev.to/_noob/lld-8pizza-topping-system-2ihc
Published Time: 2026-02-16T05:18:05Z
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Posted on Feb 16 • Edited on Jun 24
# LLD-8:Pizza Topping System
[#beginners](https://dev.to/t/beginners)[#lld](https://dev.to/t/lld)[#systemdesign](https://dev.to/t/systemdesign)[#java](https://dev.to/t/java)
# [](https://dev.to/_noob/lld-8pizza-topping-system-2ihc#pizza-topping-system-decorator-pattern-implementation) Pizza Topping System - Decorator Pattern Implementation
This is an implementation of the Decorator design pattern for a pizza shop billing system demonstrating how to stack multiple decorators of the same type for customizable orders.
## [](https://dev.to/_noob/lld-8pizza-topping-system-2ihc#problem-statement) Problem Statement
Building a billing system for a Pizza shop where customers can add multiple toppings, including multiple instances of the same topping. The challenge is handling orders like "Double Cheese Paneer Margherita" where the same decorator (Cheese) is applied twice.
Scenario:
* You are building the billing system for a Pizza shop.
* Base Pizza: Margherita costs ₹100.Toppings
* (Decorators):ExtraCheese: Costs ₹20.Paneer:
* Costs ₹60.
* The Challenge:
* A customer wants a "Double Cheese Paneer Margherita".
* This means: Margherita + ExtraCheese + ExtraCheese + Paneer.
* Total Cost: $100 + 20 + 20 + 60 = 200.
**Key Ch
URL Source: https://dev.to/_noob/lld-8pizza-topping-system-2ihc
Published Time: 2026-02-16T05:18:05Z
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Posted on Feb 16 • Edited on Jun 24
# LLD-8:Pizza Topping System
[#beginners](https://dev.to/t/beginners)[#lld](https://dev.to/t/lld)[#systemdesign](https://dev.to/t/systemdesign)[#java](https://dev.to/t/java)
# [](https://dev.to/_noob/lld-8pizza-topping-system-2ihc#pizza-topping-system-decorator-pattern-implementation) Pizza Topping System - Decorator Pattern Implementation
This is an implementation of the Decorator design pattern for a pizza shop billing system demonstrating how to stack multiple decorators of the same type for customizable orders.
## [](https://dev.to/_noob/lld-8pizza-topping-system-2ihc#problem-statement) Problem Statement
Building a billing system for a Pizza shop where customers can add multiple toppings, including multiple instances of the same topping. The challenge is handling orders like "Double Cheese Paneer Margherita" where the same decorator (Cheese) is applied twice.
Scenario:
* You are building the billing system for a Pizza shop.
* Base Pizza: Margherita costs ₹100.Toppings
* (Decorators):ExtraCheese: Costs ₹20.Paneer:
* Costs ₹60.
* The Challenge:
* A customer wants a "Double Cheese Paneer Margherita".
* This means: Margherita + ExtraCheese + ExtraCheese + Paneer.
* Total Cost: $100 + 20 + 20 + 60 = 200.
**Key Ch
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