AP CSA Unit 1 Day 9: Substringlength 3 Last 3 Chars
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Advanced Practice Question
String s = "computer";
System.out.println(s.substring(s.length() - 3));This question tests your understanding of negative offset pattern. The correct answer demonstrates precise knowledge of how Java handles substring(length-3) last 3 chars.
Students often make errors with substring(length-3) last 3 chars by not carefully tracing execution or understanding the underlying concept.
This Cycle 2 HARD question requires careful attention to detail and understanding of how Java behaves in this scenario.
For questions testing substring(length-3) last 3 chars, always trace execution step-by-step. Write down intermediate values. Don't skip steps - the AP exam rewards precise understanding of Java behavior.
Master This Topic
This Cycle 2 HARD question tests substring(length-3) last 3 chars. Review Unit 1 concepts to build mastery of primitive types, objects, and String manipulation.
- Understanding negative offset pattern
- Tracing code execution accurately
- Avoiding common pitfalls
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Cycle 2 questions prepare you for the hardest AP CSA exam questions.
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