How to define dynamic array?

In Java, a dynamic array is one that can grow or shrink in size during runtime—unlike a traditional array with a fixed size. To create one, we typically use ArrayList, which belongs to Java’s java.util package.

✅ Basic Example Using ArrayList:

import java.util.ArrayList;

public class DynamicArrayExample {
public static void main(String[] args) {
ArrayList fruits = new ArrayList<>();

    // Adding elements
    fruits.add("Apple");
    fruits.add("Banana");
    fruits.add("Mango");

    // Accessing elements
    System.out.println(fruits.get(1));  // Output: Banana

    // Removing an element
    fruits.remove("Apple");

    // Size of the list
    System.out.println("Size: " + fruits.size());
}

}

🧠 Why Use ArrayList for Dynamic Arrays?

• You don’t need to know the size in advance
• It automatically resizes as elements are added or removed
• It provides convenient methods: add(), remove(), contains(), clear(), etc.