Question

In Java, a data structure is a particular way of organizing data so that it can be used efficiently. An array is a Java data structure. Define an Array and why you would use one. Provide an example

Answer 1

An Array in Java is a fixed-size collection that allows you to store and access multiple values efficiently. It is commonly used for organizing and manipulating data.

Step-by-step explanation:

An Array in Java is a data structure that allows you to store multiple values of the same type in a single variable. It is a fixed-size collection and each element is identified by its index, which starts from 0. Arrays are commonly used in programming because they provide a convenient way to store and access data efficiently.

For example, let's say you want to store a list of 10 numbers. Instead of creating separate variables for each number, you can use an array. Here's how you can declare and initialize an array in Java:

int[] numbers = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

Now you can access individual elements of the array using their index. For example, to access the first number in the array, you would use numbers[0]. Arrays are also useful for performing operations on a collection of data, such as sorting or searching.