gaurav.gupta@mq.edu.au arraylists > lastItem
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Define a function that when passed an ArrayList, returns the last item if any. Return null if the list is null or empty. IMPORTANT: Because we are returning null, the return type is Integer, not int. lastItem([10, 70, 20, 90]) → 90 lastItem([20, 20, 40]) → 40 lastItem([50]) → 50 Go...Save, Compile, Run (ctrl-enter) Integer lastItem(ArrayList<Integer> list) { } Go Editor font size %:75100125150 Shorter output

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