Skip to main content
Code ScholarsCodeScholars

Java Topic Practice

ArrayList and Wrapper Classes

Practice mode with 15 Java-focused questions, immediate answer checks, and explanations.

All Java TopicsPractice Center

For practice use only.

ArrayList and Wrapper Classes MCQ Practice

ArrayList and Wrapper Classes Java practice with 15 questions, code tracing, and a worked explanation for every answer.

Question 1 of 15

Answered 0 of 15

Choose one answer.

Code Tracing 01 - ArrayList and Wrapper Classes: track the final printed value.

import java.util.ArrayList;
public class Main {
  public static void main(String[] args) {
    ArrayList<Integer> nums = new ArrayList<Integer>();
    nums.add(3);
    nums.add(7);
    nums.add(3);
    nums.add(9);
    nums.remove(1);
    System.out.print(nums);
  }
}
Choose one answer.