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Selection Sort

Selection sort is an in-place comparison sort algorithm which has \( O(n^2) \) running time complexity in both best and worst case. Even though its logic is similar to insertion sort, it’s a very i...

Merge Sort

Merge sort is another comparison based sort algorithm. It closely follows divide-and-conquer paradigm, and provides \( O(n​lgn) \) run time complexity in worst and average cases, however, \( O(n) \...

Binary Search

Binary search is a searching algorithm which works on a sorted (ascending or descending) array. In each turn, the given key is compared with the key at the middle of the array, if it is equal to it...

Heaps

The binary heap data structure is an array object that represents a nearly complete binary tree. Thus, each element of the array corresponds to a node of the tree. Heaps are useful data structures ...

Binary Search Trees

A Binary Search Tree (BST) is a tree data structure that supports many dynamic operations includes ; Search Minimum Maximum Insert...

Insertion Sort

Insertion sort is an efficient algorithm for sorting a small number of elements, however, it is less efficient on large lists than more advanced sorting algorithms. On the other hand, it has severa...

Bubble Sort

Bubble sort is one of the simplest sorting algorithm which pairs are repeatedly compared and swapped if they are in wrong order. This process continues until no swaps are needed means that list is ...

Jersey Client Example with JSON Support

In this tutorial we will implement a Jersey client example with JSON support. The tools and technologies that I have used are; Eclipse 4.3.0 JBoss AS 7.1.1.Final ...

RESTEasy example without using a web.xml

In this tutorial we will implement a simple web service with RESTEasy implementation -it’s an implementation of the JAX-RS specification by JBoss- without using a web.xml file. I’ve used ...

mongoexport query with using date

Sometimes we might want to export only a specific part of our collection with query support of mongoexport. Suppose this is our notebook collection, and each document refers to a notebook with the...