New Video Release: AP Computer Science A – CodeHS 1.1 (2025 Revisions – Cortado) Overview
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New Video Release: AP Computer Science A – CodeHS 1.1 (2025 Revisions – Cortado) Overview
📢 Watch now: AP CS Exam Prep – CodeHS 1.1 (2025 Revisions – Cortado)
I’m excited to announce the release of my latest AP Computer Science A tutorial on my YouTube channel, AP CS Exam Prep. In this new video, I walk you through CodeHS Lesson 1.1 (Cortado), updated for the 2025 AP CSA curriculum. Whether you’re brand new to Java or looking for a refresher, this lesson gives you the foundation you need to succeed in the course and on the AP exam.
What’s in the Video
In the tutorial, I cover:
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What algorithms are and how they’re used to solve problems
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Java basics – writing your first program, including “Hello, World!”
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Program structure – understanding the main method and proper syntax
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Compilation & execution – how Java code runs
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Debugging – fixing syntax and runtime errors
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Real-world connections to software development
I also share tips for mastering these early concepts so you can avoid common beginner mistakes.
Why I Made This Video
As an AP Computer Science teacher, I know Lesson 1.1 is where everything starts. A solid understanding here will make it much easier when you get to:
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Object-Oriented Programming (OOP)
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Arrays and ArrayLists
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Recursion
This is why I wanted to create a clear, step-by-step walkthrough for AP CSA students, so you can follow along and start coding with confidence.
Tips I Share in the Lesson
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Practice coding every day — even short sessions matter.
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Pay attention to error messages — they guide you toward the fix.
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Modify sample code to see how changes affect the output.
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Use comments to explain your thought process.
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Think through the algorithm before writing code.
Watch and Learn
🎥 Watch the full lesson here on YouTube
📌 Subscribe to AP CS Exam Prep for weekly AP CSA lessons and exam tips: AP CS Exam Prep YouTube Channel
By the end of the video, you’ll understand how Java programs are written, compiled, and run — and you’ll be ready for the rest of the AP CSA curriculum.