Archives: Logical Programs

Fibonacci Search in Java with Examples

Fibonacci Search is a divide-and-conquer algorithm similar to Binary Search, but it uses Fibonacci numbers to divide the array into search segments. It is particularly efficient for sorted arrays when the dataset size is large and the cost of accessing elements is high (e.g., accessing memory hierarchies or disk storage). How Fibonacci Search Works? Fibonacci …

Fibonacci Search in Java with Examples Read More »

Reverse an Array in Java

Reverse an array is a common and fundamental problem in programming, often used to build a strong understanding of array manipulation and algorithm design. This article explores different methods in Java, from simple approaches like using temporary arrays to advanced techniques like recursion and inbuilt methods, catering to learners at all levels. 1. Reverse Array …

Reverse an Array in Java Read More »

Binary Search in Java with Examples

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. This article shows you how the Binary search algorithm works, and gives two examples (basic, and advanced) to demonstrate …

Binary Search in Java with Examples Read More »

Arrays.sort() in Java with Examples

Arrays.sort() is a built-in method in Java’s java.util package that provides an efficient and convenient way to sort arrays. This method uses the Dual-Pivot Quicksort algorithm for primitive types and TimSort for objects. Arrays.sort() Key Points Arrays.sort() Method Signature Arrays.sort() method Examples in Java 1. Sorting Primitive Arrays Demonstrates sorting an integer array in ascending …

Arrays.sort() in Java with Examples Read More »

Heap Sort in Java

Heap Sort is a comparison-based sorting algorithm that uses a binary heap data structure. It is an efficient algorithm with a worst-case time complexity of O(n log⁡ n). How Does Heap Sort Work? Heap Sort works by leveraging the properties of a binary heap to sort an array. Here’s how it works step by step: …

Heap Sort in Java Read More »

Quick Sort in Java

Quick Sort is a highly efficient divide-and-conquer sorting algorithm. It works by selecting a “pivot” element, partitioning the array such that elements smaller than the pivot are placed to its left and elements larger are placed to its right, and then recursively sorting the subarrays. How Quick Sort Works? Steps of the Quick Sort Algorithm: …

Quick Sort in Java Read More »

Merge Sort in Java

Merge Sort is a divide-and-conquer sorting algorithm that splits an array into smaller subarrays, sorts each subarray, and then merges them back together to form a single sorted array. It is one of the most efficient sorting algorithms, particularly for large datasets. How Merge Sort Works? Understand it with an Example: Input Array: [38, 27, …

Merge Sort in Java Read More »