This looks like a tiny example… but it exposes one of the most common AP CS mistakes. Changing a parameter feels like it should update your variable — until the output proves otherwise. Once you understand the difference between sending a value and receiving it, methods stop feeling unpredictable. Follow for more AP CS clarity, and DM for AP Computer Science help. 💻⚡️ | Daniel Finley - The AP Computer Science Tutor

That variable didn’t change — your scope did. 🚫 What trips students up: • Creating a new variable instead of updating the original • Losing values when a block ends • Assuming methods share local variables AP exam strategy: If a variable is declared inside { }, its life ends there. Trace scope before tracing values. Follow for more AP CS clarity. DM for AP Computer Science help!💻⚡ | Daniel Finley - The AP Computer Science Tutor

AP Computer Science A

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