Why does Java grow with ArrayList at 3/2?

Question

Why does Java produce a full array in 3/2 instead of 2?

"The choice of a depends on the library or application: some tutorials use a = 2, but the Java implementation of ArrayList uses a = 3/2 and the C implementation of the Python list data structure uses a = 9/8."

wikipedia source

Answer 1

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Answer 2

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