Collections · interview question
Consider the following code snippet. What will be the output? ArrayList<Integer> list = new ArrayList<>(); list.add(1); list.add(2); list.add(1, 3); System.out.println(list);?
Multiple choiceHardchapter-4-curatedpremiumcollectionslist-interface-and-arraylist
ArrayList<Integer> list = new ArrayList<>();
list.add(1);
list.add(2);
list.add(1, 3);
System.out.println(list);Answer and explanation
Correct answer
B. [1, 3, 2]
Why
The add(int index, E element) method inserts the specified element at the specified position in the list. Here, 3 is inserted at index 1, resulting in [1, 3, 2].
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