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CODE TOPOLOGY NOTATION

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Kettle components (objects) small dudes == objects

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Objects with methods! hands == methods

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A method number of fi ngers == number of arguments

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Instance variables Stored inside the brain

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Instance variables Can be reused later

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Returning results

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Private methods

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Exception

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Anti-patterns

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Too many arguments

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Too many methods

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Too long methods

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Too many instance variables

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Too much conditional logic in methods Swallen arms

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Too much of everything!!!

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Classes A spawning platform

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Classes A spawning platform

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same topology Object & classes have the

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Dependencies have to remember about classes to use them

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Dependency Injection Instead of remembering thing we pass them as arguments

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Visual representation of code complexity

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