How to “Dashatize It” in Java
The challenge
Given a variable n,
If n is an integer, Return a string with dash'-'marks before and after each odd integer, but do not begin or end the …
Technical Articles
In-depth guides, insights, and best practices for modern software engineering
How to create a Nickname Generator in Python
The challenge
Write a nickname generator function, nicknameGenerator that takes a string name as an argument and returns the first 3 or 4 letters as a …
Comparing Array Multiplicities in Java
The challenge
Given two arrays a and b write a function comp(a, b) (orcompSame(a, b)) that checks whether the two arrays have the “same” …
How to Find the Sum of Angles in Golang
The challenge
Find the total sum of internal angles (in degrees) in an n-sided simple polygon.
N will be greater than 2.
The solution in Golang
Option …
Read Article →How to Find the Max Tree Node Value in Java
The challenge
You are given a binary tree. Implement the method findMax which returns the maximal node value in the tree.
For example, the maximum in …
Read Article →How to String Search with a Wildcard in Java
The challenge
The method below is the most simple string search algorithm. It will find the first occurrence of a word in a text string.
haystack = …
How to get the AWS AccountID in Terraform
If you are automating AWS resources in Terraform, then you will want to not hardcode things as much as possible.
Terraform makes it possible to pull …
Read Article →Error creating AppStream Fleet – InvalidRoleException
If you get the following error when trying to run some Terraform:
error creating Appstream Fleet (): InvalidRoleException: AppStream 2.0 encountered …
How to Create AWS AppStream resources in Terraform
AWS AppStream has finally made its way into the Terraform AWS Provider.
If you are using hashicorp/aws version 3.67 or above, then you can do the …
How to Stop a Goroutine in Golang
It’s possible to stop a Goroutine by sending a value into it via a signal channel:
exit := make(chan bool)
go func() {
for {
select …How to Create an Empty Branch in Git
If you need to create an empty branch in git, you can follow one of the below options.
If you are using git version 2.27 or newer, then follow the …
Read Article →Get the Consonant Value in Java
The challenge
Given a lowercase string that has alphabetic characters only and no spaces, return the highest value of consonant substrings. Consonants …
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