What is the usage of arrays in Java?
In Java, the Arrays class is a utility class used to manipulate arrays. It offers a range of static methods to operate on arrays, such as creating, sorting, searching, and filling arrays.
Here are some common methods of the Arrays class:
- sort method: sorts an array in natural order or using a custom comparator.
- binarySearch method: perform a binary search on a sorted array to find the index of a specified element.
- The toString method converts an array into a string, making it easier to print or display.
- Equals method: Compares two arrays to check if they are the same, with both the order and content of the elements being exactly identical.
- The CopyOf method copies an array, allowing to specify the length of the copy, with any excess length beyond the original array to be filled with default values.
- fill method: set all elements of the array to a specified value.
- asList method: Converts the specified elements into a fixed-size list, allowing elements to be modified.
- toString method: converts the array into a string in the format of “[element1, element2, …]”.
These methods can simplify the operations on arrays, making it easier for developers to handle array data.