Final answer:
The static int Arrays.binarySearch(anArray, keyValue) method is used to search for a specific value in a sorted array in Java.
Step-by-step explanation:
The static int Arrays.binarySearch(anArray, keyValue) method is a built-in method in the Arrays class in Java. It is used to search for a specific value (keyValue) in a sorted array (anArray) and returns the index of the value if found, or a negative value if not found.
The method uses the binary search algorithm, which is an efficient algorithm for searching in a sorted array. It compares the keyValue with the middle element of the array. If they match, it returns the index. If the keyValue is less than the middle element, it narrows down the search to the lower half of the array. If the keyValue is greater, it narrows down the search to the upper half. This process is repeated until the value is found or the search range becomes empty.
Here's an example:
int[] numbers = {1, 3, 5, 7, 9};
int key = 7;
int index = Arrays.binarySearch(numbers, key);
// index will be 3, as 7 is found at index 3 in the array