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What does mean "Lists (like Java arrays) are zero based."?

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Question: What does mean "Lists (like Java arrays) are zero based."? Does it mean that all elements when I create a new array are not nulls, but zeroes? Like for example in PHP?

Answer : No, when you create a new array, all elements, if they are not initialized are nulls, but index starts from zero. First element always will have index 0, not 1 like this:

myArray[] contains for example three elements. They are:

myArray[0]
myArray[1]
myArray[2]

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What does mean "Lists (like Java arrays) are zero based."?

Question: What does mean "Lists (like Java arrays) are zero based."? Does it mean that all elements when I create a new array are not nulls, but zeroes? Like for example in PHP?