https://codeinstances.com/tags/explainer/ Recent content in Explainer on CodeInstances.com Hugo en-us Sun, 18 Oct 2026 00:00:00 +0000 https://codeinstances.com/what-a-code-instance-is-and-why-program-runs-should-be-kept-like-code/ Sun, 18 Oct 2026 00:00:00 +0000 https://codeinstances.com/what-a-code-instance-is-and-why-program-runs-should-be-kept-like-code/ <p>If you&rsquo;ve written object-oriented code, you already know the idea. A class is a blueprint. Each object you make from it is an instance of that class, with its own state. One <code>Order</code> class, thousands of orders.</p> <p>Your program works the same way. The code is the blueprint, and every time it runs, that run is an instance of it. Same code, different day, different answers from the servers it talks to, different clock, different random numbers. Each run is its own thing.</p>