ArrayList in AP Computer Science A
Which of the following loops is the correct way to iterate through an ArrayList<String> called names and print each name?
What happens when you attempt to modify the size of an ArrayList (e.g., adding or removing elements) while traversing it using a for-each loop?
What is the purpose of the size() method in the ArrayList class?
When is it NOT appropriate to use a for-each loop to traverse an ArrayList?
Given an ArrayList<String> called names, what will be the output of names.size() after the following operations?
names.add("Alice");
names.add("Bob");
names.remove(0);
Which of the following is NOT a recommended step for programmers to safeguard users' personal privacy?
Which of the following is the correct way to instantiate an ArrayList that holds Integer objects?
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Consider the following code snippet:
java
ArrayList<Integer> numbers = new ArrayList<>();
numbers.add(10);
numbers.add(20);
numbers.add(30);
numbers.set(1, 40);
numbers.remove(0);
System.out.println(numbers.get(1));
What will be printed to the console?
Which of the following code snippets correctly converts an ArrayList<Integer> called list to an Integer[] array?
What is the primary ethical concern related to the collection of user data using ArrayLists or other data structures?