Apr 9, 2025 · Given a sorted array of Strings arr and a string x, The task is to find the index of x in the array using the Binary Search algorithm. If x is not present, return -1.

Apr 11, 2025 · Binary search is a highly efficient searching algorithm used when the input is sorted. It works by repeatedly dividing the search range in half, reducing the number of comparisons needed compared to a linear search.

Aug 27, 2015 · You should use complementing check/removal methods such as in.hasNext() with in.next(). Check out the Scanner API. 3: The binarySearch(String[], String) method uses String.compareTo(String). This is determines a lexicographical ordering of this String to the parameter String.

Nov 21, 2009 · Of all the overloaded versions of binarySearch in Java, there is no such a version which takes an argument of String. However, there are three types of binarySearch that might be helpful to your situation:

Nov 25, 2024 · 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.

Jun 17, 2018 · Here we will see how we can do this in Binary Search. Input: String [] a = { “AAA”, “BBB”, “CCC”, “DDD”, “EEE”, “FFF”, “GGG” }; Element to find: String key = “CCC”; mid = (min + max) / 2; if (a [mid].compareTo(key) < 0) { min = mid + 1; } else if (a [mid].compareTo(key) > 0) { . max = mid - 1; } else { return mid; } } return -1; } }

Jan 5, 2025 · Binary Search is an efficient algorithm for finding an element in a sorted array or collection. It works by repeatedly dividing the search interval in half and comparing the target value (key) with the middle element.

Here, we have used the Java Scanner Class to take input from the user. Based on the input from user, we used the binary search to check if the element is present in the array. We can also …

Dec 27, 2014 · For those who are new to Binary Search Tree, note that Binary Search Tree is defined as tree that satisfy some of the following criteria: Key in left children is less than the parent node and key in the right node is greater. Each node is in itself a binary search tree.

Jun 6, 2024 · In this article, we’ll cover advantages of a binary search over a simple linear search and walk through its implementation in Java. 2. Need for Efficient Search