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Bucket Sort in Java with Example

In recent years, one of the question I have increasingly seen in programming job interviews is about constant time sorting algorithms e.g. ...

You can use the same algorithm to count a number of leaf nodes in the binary tree which we have used in the last article, while printing all...

Write a program to calculate the square root of a number in Java or C++ is one of the popular coding interview questions from Programming jo...

This is the third article on tree traversal. In the last couple of articles, I have shown you how to implement preorder and inorder traver...

Can you write a Java program to check if two rectangles are overlapping with each other or not? is one of the frequently asked coding quest...

The quicksort algorithm is one of the important sorting algorithms. Similar to merge sort, quicksort also uses divide-and-conquer hence it...

Binary tree based questions are very common in Java or any other Programming job interviews. One of the frequently asked binary tree questio...

This is the second article about tree traversal algorithms using Java. In the first part , we have seen the pre-order algorithm for visiting...

The problem to find the 3rd element from the end in a singly linked list or nth node from the tail is one of the tricky but frequently asked...

Unlike linked list and array which can only be traversed linearly, there are several ways to traverse a binary tree. The tree traversal algo...

Hi Guys, Here is one of the classical programming questions asked to me first time on an interview with multinational Investment bank. After...

This Java tips is about, how to reverse array in Java, mostly primitive types e.g. int , long , double and String arrays. Despite of Java�...

There are multiple ways to generate the MD5 hash in Java program. Not only Java API provides a convenient method for generating MD5 hash, yo...

Data structures and algorithm questions are an important part of any programming job interview, be it a Java interview, C++ interview or any...

There are multiple ways to combine or join two arrays in Java, both for primitive like int array and Object e.g. String array. You can even ...