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Array.size()

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AP Computer Science A

Definition

In this context, `array.size()` returns the number of elements currently stored in the ArrayList called 'array'.

"Array.size()" also found in:

Practice Questions (4)

What does the following code do? public static boolean codeBlock(ArrayList<Integer> array) { for (int i = 0; i < array.size() - 1; i++) { for (int j = i + 1; j < array.size(); j++) { if (array.get(j) == array.get(i)) { return true; } } } return false; }
What does the following code do? public static ArrayList<Integer> codeBlock(ArrayList<Integer> array) { int lastItem = array.get(array.size()- 1) for (int i = array.size() - 1; i > 0; i--) { array.set(i, array.get(i-1)); } array.set(0, lastItem); return array; }
What is returned by the following code if the ArrayList [5, 6, 3, 10] is passed in? public static int codeBlock(ArrayList<Integer> array) { int x = 0; for (int y: array) { x += y; } return (double) x / (array.size()); }
After calling the following method on the ArrayList [5, 1, 2, 3], what are its elements? public static void codeBlock(ArrayList<Integer> array) { for (int i = 0; i < array.size(); i++) { array.set(i, array.get(i) * array.get(i)); } }

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