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AP CSA Unit-Level MCQ

Code Tracing: Object State and Encapsulation

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Code Tracing: Object State and Encapsulation MCQ Practice

Code Tracing: Object State and Encapsulation AP Computer Science A topic practice with 50 original Java MCQs and immediate explanations.

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What is printed by this Object State and Encapsulation code trace?

public class Main {
  public static void main(String[] args) {
    Tracker t = new Tracker(18);
    t.add(3);
    t.add(5);
    System.out.print(t.getValue());
  }
}
class Tracker {
  private int value;
  public Tracker(int start) { value = start; }
  public void add(int amount) { value += amount; }
  public int getValue() { return value; }
}