A common algorithm question is “How to Reverse a Linked List”. Below the SimpleLinkedList (Java) class contains a simple example to follow. The class SimpleLinkedList contains one field, head, which…
Binary Search is a classic algorithm used to find an item in an ordered list/array of items. This list/array of items must be ordered for binary search to work. The…
Binary Search is a classic algorithm used to find an item in an ordered list/array of items. This list/array of items must be ordered for binary search to work. The…
JSON is a very common way to store data. But JSON can get messy and parsing it can get tricky. Here are a few examples of parsing nested data structures…
Needing to read and write JSON data is a common big data task. Thankfully this is very easy to do in Spark using Spark SQL DataFrames. Spark SQL can automatically…
There are a lot of great Java libraries for working with JSON. One of these is Google’s Gson, which has the goal of providing simple toJson() and fromJson() methods to…
There are a lot of great Java libraries for working with JSON. One of these is Google’s Gson, which has the goal of providing simple toJson() and fromJson() methods to…