What does array mean in java

Arrays in Java

What are Arrays?

Arrays is a class in the Java standard library that implements the array function.

Using Arrays

In Java, an array is a sequence of elements with a fixed length. The Arrays class provides a variety of static methods for operating arrays, including:

Create an array

int[] numbers = new int[10];

Get the array length

int length = numbers.length;

Accessing array elements

System.out.println(numbers[0]);

Traversing the array

for (int number : numbers) {
    System.out.println(number);
}

Sort the array

Arrays.sort(numbers);

Binary search array

int index = Arrays.binarySearch(numbers, 5);

Filled array

Arrays.fill(numbers, 0);

Multidimensional array

Java also Supports multidimensional arrays where the elements are the arrays themselves. For example, a two-dimensional array is an array of elements consisting of rows and columns.

Note

• The array length is determined when it is created and cannot be changed.
• Array elements are initialized by default to the default value (0 for numeric types).
• Be careful when indexing an array, an index out of range will cause an array out-of-bounds exception.

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