How do I implement an ArrayList in Java?

How do I implement an ArrayList in Java?

To implement an ArrayList in Java, you can use the ArrayList class from the java.util package. Here's a simple example:

import java.util.ArrayList;

public class Main {
    public static void main(String[] args) {
        ArrayList<String> list = new ArrayList<>();
        list.add("Apple");
        list.add("Banana");
        list.add("Cherry");
        System.out.println(list);
    }
}

What are the advantages of using ArrayList over arrays?

ArrayLists offer dynamic sizing, easier manipulation of elements, and built-in methods for common operations, unlike arrays.

Can you explain how to iterate through an ArrayList?

Certainly! You can iterate through an ArrayList using a for loop or an enhanced for loop. Here's an example:

for (String fruit : list) {
    System.out.println(fruit);
}

What happens if I try to access an index that doesn't exist?

If you try to access an index that doesn't exist in an ArrayList, it will throw an IndexOutOfBoundsException.