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Unit 2: Using Objects
Quick questions on Creating and storing objects (instantiation) - AP Computer Science A Unit 2
2short 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
Write a statement that creates a Circle object with radius 7 using a constructor Circle(int radius) and stores it in c. [1 point]
What is q2?Show answer
Explain what happens at run time if you call a method on a reference variable that is null. [2 points]
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