How to Read a File Line by Line in Java
If you need to read a file line by line in Java, then you can use one of the following three (3) options.
Option 1
You can use the FileReader and …
Technical Articles
In-depth guides, insights, and best practices for modern software engineering
How can I clear or empty a StringBuilder
You can use Java’s StringBuilder to create and manipulate Strings as follows:
StringBuilder sb = new StringBuilder(); …How to Approve a SageMaker model in AWS CLI
Sometimes you will need to manually approve a SageMaker model package from the AWS CLI.
Step 1 – Get a list of the available packages
aws sagemaker …How to Assume Role across Accounts in AWS
If you need to assume role between AWS accounts, or allow an account to assume a role and use resources in another AWS account, then you need to …
Read Article →How to Style an Element using Javascript
If you need to style an element using Javascript then you can use the style object to support all your CSS needs.
<html>
<body> …How to Wait 1 Second in Javascript
If you need your Javascript code to wait one (1) second (or more) while executing, then there are a couple of ways to achieve this.
Option 1 – …
Read Article →How to use forEach method in Javascript
Arrays come with a useful forEach function that allows you to loop through the array.
var colors = ['red', 'blue', 'green']; …How to Remove an Element from an Array in Javascript
If you need to remove an element from an array in Javascript, then you can use one of the following five (5) options:
Option 1 – Use splice to remove …
Read Article →
How to get the Alphabet as Array in Javascript
If you need to get an array of alphabetical letters in Javascript then you can use one of the following:
Option 1 – Explicitly define the array first …
Read Article →The Power of Two (2) Table
With the Power of Two, you can ask the following:
- How do you find the powers of 2?
- What does the power of 2 stand for?
- How much is the power of 2? …
How to get the Screen Width in Javascript
Javascript gives a few options to determine the screen width.
When we say screen, we mean the browser window’s width itself.
Option 1 – Using …
Read Article →How to Read a File in Rust
If you need to read a file in Rust, then you can use the fs package from the standard library:
use std::fs;
fn main() {
let contents = …How to Convert Array to String in Java
If you need to convert an array to a string in Java, then you could look at a solution like this:
String stringArray[] = {"Hello ", " …How to Join Two Strings Together in Golang
If you need to join two (2) strings together in Golang, you can do the following, using the + concatenation operator:
package main
import ( …How to Recursively Delete all Files in an AWS S3 Bucket
If you need to recursively delete all files in an AWS S3 bucket, then you can do the following:
aws s3 rm --recursive s3://your-bucket-name/foo/bar/ …How to Execute Linux Commands in Golang
If you want to execute Linux commands in Golang, you can use exec.Command from the os/exec package:
cmd := exec.Command("echo", "hello …How to Check for Prime Numbers using Golang
If you need to check for Prime Numbers in Golang, then you can use the following method:
const n = 1212121
if big.NewInt(n).ProbablyPrime(0) { …How to Raise a Number to a Power in Golang
If you need to raise a number to a power in Golang, then you can use the math.Pow function:
package main
import (
"math"
)
func …How to get CPU Frequency in Linux
If you need to get the CPU frequency in Linux, you can run the following command:
watch -n.1 "grep \"^[c]pu MHz\" /proc/cpuinfo"
This …
Read Article →How to Disable Warning with Python Pandas
How can python pandas disable warnings?
If you need to disable warnings with Pandas on Python, then you can use the warnings module and ignore the …
How to Get all Caps Alphabet as List in Python
If we take the following list:
['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', …[Solved] Error creating RDS DB Instance: IAM role ARN value is not value or does not include the required permissions for: ENHANCED_MONITORING
When you are trying to create an RDS database and you get the dreaded error message:
IAM role ARN value is invalid or does not include the required …
How to create an AWS Lambda in Terraform
Step 1 – Lambda Code in Python
The following code expects a python file with the contents as follows in a file called python/script1.py:
def …[Solved] Instance Profile already exists in Terraform
If you get the Instance Profile already exists error when running your Terraform apply, then it is either because an instance profile with that name …