Tutorials

Video tutorials have the list of the videos that provide the solutions and explanations for most asked Java coding interview questions from Google, Amazon and Facebook etc. You can also watch them in my YouTube channel. If you have a request for making a video tutorial for any particular question or topic, please contact us.

5 ways to request and parse data from Internet

Internet is the great resource to get information. You can request and parse data for study, business or hobby. There ...
Read More

5 ways reduce image size to speed up website

Introduction When traveling, most people take picture using the smart phone. The pictures’ dimensions are 3600 x 2400 pixels or ...
Read More

10 Eclipse settings you must know for Java development

Top 10 eclipse settings are: 1. Open the Exiting Projects 2. Red sign on Project in Package Explorer 3. Change ...
Read More

Find shortest and 2nd shortest path using Dijkstra tutorial

Backstory: Find shortest and 2nd shortest path using Dijkstra tutorial extends the use of Dijkstra algorithm, and solve find the ...
Read More

Find K closest points to center tutorial

Backstory: Find K closest points to center tutorial explains how to use PriorityQueue to solve the question. There are multiple ...
Read More

Shortest path in matrix tutorial

Backstory: A matrix is a 2D array, an extension of an array. Meanwhile, matrix is one of the representation of ...
Read More

Convert prefix to postfix tutorial

Backstory: Convert prefix to postfix tutorial provides 2 solutions to convert – stack and recursion. The binary tree traversal in ...
Read More

Word break using memoization tutorial

Backstory: Word break tutorial explains how to use memoization to solve word break problem. Memoization is one of the dynamic ...
Read More

Autocomplete with trie tutorial

Backstory: Autocomplete with trie tutorial teaches how to implement trie and use it to solve automcomplete problem, a popular interview ...
Read More