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Classes & Objects
Last Updated: June 2, 2026
High Priority
22 min read
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On this page
A Class Is a Blueprint
An Object Is an Instance
Class vs Object: Keep the Distinction Clear
Fields: What an Object Holds
Methods: What an Object Can Do
Multiple Objects, Independent Fields
References: Two Variables Can Point at One Object...
The null Reference
Memory: Stack and Heap, in Brief
A Slightly Larger Example: Cart Items
Looking Ahead
Summary
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Exercise: Pass by Va...
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Exercise: Classes & ...
