Types of Arrays

📊 Types of Arrays in Java Arrays in Java can be classified into two types: Single-Dimensional Arrays and Multidimensional Arrays. Both types store elements of the same data type, but their structure differs. 🧑‍🏫 1. Single-Dimensional Arrays A single-dimensional array is a linear list of elements, where each element is accessed via its index. 🔹 Example int[] numbers = {10, 20, 30, 40, 50}; System.out.println("Element at index 2: " + numbers[2]); // Output: 30 🔹 Declaring and Initializing int[] arr = new int[5]; // Declaring with fixed size arr[0] = 1; // Assigning values 📐 2. Multidimensional Arrays Multidimensional arrays are arrays of arrays. A 2D array is the most common, where each element is itself an array. ...

May 8, 2025 · 2 min · Rohan

Arrays

🧑‍💻 Arrays in Java An array is a data structure in Java that stores multiple values of the same type in a single variable. It provides a way to group variables under a single name, making it easier to manage and manipulate data. 🌱 Declaring and Initializing Arrays Declaring an Array Syntax: dataType[] arrayName; int[] arr; // Declaration 2. **Initializing an Array** * **Static Initialization**: Assigning values at the time of declaration. ```java int[] arr = {1, 2, 3, 4, 5}; // Initialization Dynamic Initialization: Assigning values later. int[] arr = new int[5]; // Creates an array of size 5 arr[0] = 1; // Assign values arr[1] = 2; 🚀 Example: Using Arrays public class ArraysExample { public static void main(String[] args) { int[] numbers = {10, 20, 30, 40, 50}; // Accessing array elements System.out.println("First Element: " + numbers[0]); // Iterating over array for (int i = 0; i < numbers.length; i++) { System.out.println("Element at index " + i + ": " + numbers[i]); } } } 🔍 Multidimensional Arrays Java also supports arrays with multiple dimensions, like 2D arrays. ...

May 8, 2025 · 2 min · Rohan