Dynamic Array Assignment in Java
Process Overview
| Step | Description | Code Example |
|---|---|---|
| Initiailze Dynamic Array | Create a ArrayList instance to store elemetns dynamically | List<String> flexibleList = new ArrayList<>(); |
| Populate Elements | Use the add() method to insert values into the dynamic array | flexibleList.add("Element1"); |
Implementation Details
Initialize Dynamic Array
List<Integer> numberList = new ArrayList<>();
This code initializes an empty ArrayList capable of storing Integer objects. The ArrayList automatically handles resizing as elements are added.
Populate Elements
numberList.add(25);
numberList.add(50);
numberList.add(75);
The add() method appends elements to the end of the list. The ArrayList's capacity expands automatically when needed.
Complete Example
import java.util.ArrayList;
import java.util.List;
public class DynamicArrayExample {
public static void main(String[] args) {
List<String> items = new ArrayList<>();
items.add("First Item");
items.add("Second Item");
items.add("Third Item");
System.out.println("Array contents: " + items);
System.out.println("Array size: " + items.size());
}
}
This example demonstrates creating a dynamic array, adding multiple elements, and accessing array properties.