COMPUTER SCIENCE AND ENGINEERING
DATA STRUCTURES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ask politely.
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songs[1]
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songs[0]
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None of the above
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Detailed explanation-1: -You can access an array element by referring to its index number. The indexes in NumPy arrays start with 0, meaning that the first element has index 0, and the second has index 1 etc.
Detailed explanation-2: -Get the first element of ArrayList with use of get(index) method by passing index = 0. Get the last element of ArrayList with use of get(index) method by passing index = size – 1.
Detailed explanation-3: -JavaScript arrays are zero-indexed: the first element of an array is at index 0, the second is at index 1, and so on-and the last element is at the value of the array’s length property minus 1 . JavaScript array-copy operations create shallow copies.
Detailed explanation-4: -Short Answer An array is a pointer, and the index is used as the offset. The first element of the array is precisely at the pointer’s memory location; therefore, the offset is zero.