Apple Java Developer Mock Interview
Master 20 Apple Java Developer interview questions covering system design, backend architecture, and Apple's technical standards.
Question 7 of 20
How is a volatile keyword used in Java?
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
This technical question asks you to first define the concept and then describe some features of its use. This is a common format for technical questions that a Apple interviewer will ask you. When answering a question during an interview, you should anticipate follow-up questions. These indicate that the interviewer needs additional information or has a strong interest in the topic they are asking about. It may also be an indicator that the topic is important to the operations of the organization.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"A volatile keyword is used in Java with variable and threads which read its value directly from its memory location. This ensures the value is read exactly as it is contained in the memory location, and that the threads or variables do not cache it in case it changes. Since some Apple applications are heavily dependent on the use of keywords, this concept is important to know."
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