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What is a NullPointerException and how do I fix it?

coursera quiz answers

Problem: What is a NullPointerException and how do I fix it? What are Null Pointer Exceptions (java.lang.NullPointerException) and what causes them? What methods/tools can be used to determine the cause so that you stop the exception from causing the program to terminate prematurely? Solution: There are two overarching types of variables in Java: Primitives: variables […]

How would you best describe your experience with product design?

Question: How would you best describe your experience with product design? Advanced with many physical products produced. Intermediate with a few physical products produced. Novice with many digital designs but no physical products. Not presently experienced in this type of design. Answer: Advanced with many physical products produced. More Coursera Quiz Answers >> Materials Science: […]

Are you familiar with the concepts of a multi-rotor flying machine?

Home All Questions Are you familiar with the concepts of a multi-rotor flying machine? Question: Are you familiar with the concepts of a multi-rotor flying machine? I am familiar with the concept and the principles. I have heard the term but I am not certain what it means. I think I have heard of this […]

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