Overview

In this tutorial, we will learn how to create an array in the Java programming language. An array is a collection of elements. We specify the size of the array at runtime. All the array elements are of the same data type. The array elements are commonly referred to using a single name, and individual elements are accessed using the index.

Declare an Array

The syntax to declare an integer array is as follows:

int  numbers[];            //declare an integer array

int   [] marks;          // another syntax to declare an array

Create an array

Create an array of 10 elements

int numbers  = new int[10];

Alternatively, you can declare and allocate memory in two steps.

//Declare an array

int  numbers[]; 

//Create an array

numbers =new int[10];

We can also provide a variable in the array size declaration.

/* Create an array where the size of the array is determined by the value of variable num */

int arr[] =new int[num];

 

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Java Tutorials

Java Tutorial on this website:

https://www.testingdocs.com/java-tutorial/

For more information on Java, visit the official website :

https://www.oracle.com/java/