AP CSA Unit 1 Day 12: Substring Pieces Concatenation
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Advanced Practice Question
String s = "computer";
String result = s.substring(0, 3) + s.substring(5);
System.out.println(result);This question tests your understanding of building new string. The correct answer demonstrates precise knowledge of how Java handles substring pieces concatenation.
Students often make errors with substring pieces concatenation 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 pieces concatenation, 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 pieces concatenation. Review Unit 1 concepts to build mastery of primitive types, objects, and String manipulation.
- Understanding building new string
- 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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