Bubble sort is a sorting algorithm that repeatedly goes through an array and swaps adjacent elements if they are not in order. The algorithm is repeated until the list is sorted. Example Sort the given array {3, 2, 5, 1, 4}.

A binary search is an algorithm that finds a given target in a sorted array. The binary search algorithm compares the target to the middle element of the array. Assuming the target is not the middle element you will compare whether the target is larger or smaller than the middle…

Exceptions are problems that happen during the execution of a program that will result in the program abnormally ending. As you are creating your programs you will need to handle these exceptions if you want your code to work correctly. There are two different types of exceptions. The first are…

Binary is a numbering system with two possible values 1 or 0. Using the 1’s and 0’s the computer can represent numbers using different patterns. In this system 1 is considered true because it will have a value and 0 is false because it will not have a value.

Recursion is a concept in computer programming that means defining a problem in terms of itself. Another way of explaining recursion is to define a function or calculate a number by the repeated use of an algorithm. A good example of how to use recursion is if you are trying…

A dictionary is a generic collection that is used to store key-value pairs. They are similar to arrays but store two components. The first is the key and the second is the value. …

In my last article, I went over how I saved data for my app. With that data saved it is time to upload that data to Amazon Simple Storage Service (S3). Before uploading the saved data you need to create a bucket that will hold the data and create permissions…