gaurav.gupta@mq.edu.au arraylists > firstItem
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Define a function that when passed an ArrayList, returns the first 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. firstItem([10, 70, 20, 90]) → 10 firstItem([]) → null firstItem(null) → null Go...Save, Compile, Run (ctrl-enter) Integer firstItem(ArrayList<Integer> list) { } Go Editor font size %:75100125150 Shorter output

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