Array1¶
Introduction to Java Arrays¶
In Java, an array is a collection of elements of the same data type, stored in a contiguous block of memory. Arrays are used to store multiple values in a single variable, instead of declaring separate variables for each value. You can access elements using an index, where the index starts from 0 for the first element.
Array Basics¶
Declaration and Initialization:
int[] numbers = new int[5]; // declares an array of 5 integers
numbers[0] = 10; // assigns 10 to the first element
Accessing Elements:
You can access and modify elements in the array using their index.
int firstNumber = numbers[0]; // gets the first element
numbers[1] = 20; // sets the second element to 20
Array Length:
Arrays have a fixed size, which is determined when they are created. You can find the length of an array using the .length attribute.
Short Video Lecture¶
(Video here)
VisualCodeChat Tutoring (Exercise: Find Max)¶
Interact and Learn with VisualCodeChat!
After-class Exercises¶
(Exercises here)