Module 14: Arrays

📚 What is an Array?

An array is a collection of similar types of data stored in a contiguous memory location. Arrays are used to store multiple values in a single variable, instead of declaring separate variables for each value.

🔢 Declaring and Initializing Arrays

                    int[] numbers = new int[5]; // Declaration with size
                    numbers[0] = 10;
                    numbers[1] = 20;
                    numbers[2] = 30;
                    numbers[3] = 40;
                    numbers[4] = 50;
                    
                    // Or directly initialize
                    int[] scores = {90, 85, 70, 60};
                    

🔁 Traversing Arrays

                    for (int i = 0; i < scores.length; i++) {
                        System.out.println("Score: " + scores[i]);
                    }
                    
                    // Enhanced for loop
                    for (int score : scores) {
                        System.out.println("Score: " + score);
                    }
                    

📦 Multidimensional Arrays

                    int[][] matrix = {
                      {1, 2},
                      {3, 4},
                      {5, 6}
                    };
                    
                    for (int i = 0; i < matrix.length; i++) {
                      for (int j = 0; j < matrix[i].length; j++) {
                        System.out.print(matrix[i][j] + " ");
                      }
                      System.out.println();
                    }