Java quiz 24: The ArrayList of car brands

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Here is an ArrayList of car brands. This program shows what happens if you add a new brand in a specific index.

Java quiz 24: The ArrayList of car brands

Level: Normal

What happens if the following code is compiled and run?

import java.util.ArrayList;
import java.util.Iterator;

public class CarBrands
{
  public static void main(String[] args)
  {
    ArrayList<String> carList = new ArrayList<String>();
    carList.add("Audi");
    carList.add("Opel");
    carList.add("Volvo");
    carList.add("Toyota");
    carList.add(3, "Ford");
    Iterator<String> iter = carList.iterator();
    while(iter.hasNext())
    {
      System.out.print(" " + iter.next());
    }
  }
}
Author: Sar Maroof

Select the correct answer.


Answer explanation

  1. The statement carList.add(3, “Ford”); adds the brand Ford at the third index to the list.
  2. Remember that the index of the ArrayList starts from 0. Therefore the brand Ford will be added after Volvo.

The correct answer is: f.

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Sar Maroof is a professional software development teacher, gives master classes and publishes technical articles. He is also an expert software developer and worked for several big as well as small companies and later as a freelancer.

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