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Which of these methods returns the total number of bytes of memory available to the program?

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Which of these methods returns the total number of bytes of memory available to the program?

(a) getMemory()

(b) TotalMemory()

(c) SystemMemory()

(d) getProcessMemory()

I had been asked this question during an internship interview.

My question comes from Java.lang in division Exploring java.lang & java.io of Java

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Right option is (b) TotalMemory()

To elaborate: TotalMemory() returns the total number of bytes available to the program.

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