Java One Dimensional Arrays

One dimensional array is a list of same typed variables. To create an array, first you must declare an array variable of required type, the syntax is given below:

Example:

To allocate memory or create array object the syntax is given below:

Example:

You must specify the size of the array during creating object.

After this statement, account_numbers will refer to 10 integers, and assigned to 0. You can access any element by index, array index starts with 0 and ends with (array length-1). We can assign array values as given below:

The below line displays the value stored at index 1.

We can combine declaration of an array with allocation of array as given below:

Arrays can be initialized when they are declaring as given below:

Other Java Array Examples

• Array declaration and initialization or One dimensional array
• Two dimensional array or Multi-dimensional arrays
• How to convert Array to List in java?
• How to find array elements by binary search?
• How to copy array and increase size dynamically?
• How to copy range of elements from an array?
• How to compare two arrays and confirm they are equal?
• How to fill an array with default values?
• How to sort an array?
• How to sort an array using comparator?