Jun 13, 2022 · Given an array arr[] of n elements, write a recursive function to search for a given element x in the given array arr[]. If the element is found, return its index otherwise, return -1. Input/Output Example: Input : arr[] = {25, 60, 18, 3, 10}, Element to be searched x …

Sep 10, 2024 · Step 1: Find the middle element of the search interval. It is done by calculating the average of the first and last elements in the search interval. Step 2: Compare the target value to the middle element. If the target value is equal to the middle element, then the search is successful and the index of the target element is returned.

Apr 11, 2025 · Methods for Java Binary Search. There are three methods in Java to implement Binary Search in Java are mentioned below: Iterative Method; Recursive Method; Inbuild Method; 1. Iterative Method for Binary Search in Java. Example: …

Apr 29, 2025 · In Java, the Arrays.binarySearch() method searches the specified array of the given data type for the specified value using the binary search algorithm. The array must be sorted by the Arrays.sort() method before making this call.

Jul 4, 2020 · Learn how to implement binary search using recursion in Java with this comprehensive guide and example code.

public static boolean recursive(int[] input, int valueToFind) { if (input.length == 0) { return false; } int mid = input.length / 2; if (input[mid] == valueToFind) { return true; } else if (input[mid] > valueToFind) { int[] smallerInput = Arrays.copyOfRange(input, 0, mid); return recursive(smallerInput, valueToFind); } else if (input[mid ...

Oct 15, 2020 · In this article, you'll see how to implement a binary search in Java with recursive, iterative, and Java collections with real code examples

Here is our complete Java solution to implement a recursive binary search. I have a public method recursiveBinarySearch(int[] input, int key) , which takes an integer array and a number as a key which we need to search in the array.

Feb 2, 2024 · If X is less than mid, search the lower half of the array by recursively calling binarysearch(arr, lo, mid-1). Else if X is greater than mid, search the upper half of the array by recursively calling binarysearch(arr, mid+1, hi).

In this post, we'll dive into one of the most fundamental algorithms in computer science - Binary Search. We will implement binary search in Java using both iterative and recursive approaches. This algorithm is essential for efficiently searching a target element in a sorted array.