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Unit 6: Array
Quick questions on Array creation and access - AP Computer Science A Unit 6
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
What is the last valid index of an array created with new int[10]? [1 point]
What is q2?Show answer
Write one statement that declares and creates a double array named temps holding exactly 7 elements, all starting at 0.0. [2 points]
What is off-by-one indexing?Show answer
The last index is length - 1, not length. A loop condition of i <= a.length runs one element too far and throws an ArrayIndexOutOfBoundsException.
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