Java Arrays

Declaring an Array

Arrays are used to store multiple values in a single variable instead of declaring separate variables for each value.

String[] cars;

To insert values, use curly braces:

String[] cars = {"Volvo", "BMW", "Ford", "Mazda"};
int[] myNum = {10, 20, 30, 40};

Accessing Elements

Access an element using its index:

String[] cars = {"Volvo", "BMW", "Ford", "Mazda"};
System.out.println(cars[0]); // Outputs Volvo

Modifying Elements

Modify an array element by its index:

cars[0] = "Opel";

Finding Array Length

Use the length property to get the number of elements:

System.out.println(cars.length); // Outputs 4