Introduction

In this tutorial, we’ll take a look at how to declare and initialize arrays in Java.

We declare an array in Java as we do other variables, by providing a type and name:

int[] myArray;

To initialize or instantiate an array as we declare it, meaning we assign values as when we create the array, we can use the following shorthand syntax:

int[] myArray = {13, 14, 15};

Or, you could generate a stream of values and assign it back to the array:

int[] intArray = IntStream.range(1, 11).toArray();
int[] intArray = IntStream.rangeClosed(1, 10).toArray();
int[] intArray = IntStream.of(1, 2, 3, 4, 5, 6, 7, 8, 9, 10).toArray();

To understand how this works, read more to learn the ins and outs of array declaration and instantiation!

• Array Declaration in Java
• Array Initialization in Java
• IntStream.range()
• IntStream.rangeClosed()
• IntStream.of()
• Java Array Loop Initialization

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