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AP Computer Science a Flashcards: Casting And Range Of Variables

Study Casting And Range Of Variables in AP Computer Science a with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What is overflow in the context of variable casting?

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ANSWER

Overflow is exceeding the maximum range of a data type. Value wraps around when exceeding maximum.

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AP Computer Science a: Using Objects and Methods

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What this deck covers

This deck focuses on Casting And Range Of Variables, giving you a quick way to review the definitions, rules, and examples that matter most for AP Computer Science a.

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Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 16Practice questions for this set
A physics renderer stores pixels in a short: 
class MotionRenderer {
  public static short packPixels(int pixels) {
    return (short) pixels; // narrowing conversion
  }
}
Considering the given scenario, what error will occur if the value of pixels exceeds its type range?
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