kristofer / WifiMacBookFreeBSD.md

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networking wireless.

kristofer / Spark/Docker Troubleshooting Guide

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Spark-Docker-SQL - Troubleshooting Guide

🚨 Quick Emergency Fixes

🔥 "Everything is Broken" - Nuclear Option

# Stop everything and restart fresh
docker-compose down -v --remove-orphans
docker system prune -f
docker volume prune -f

kristofer / Create Classroom assignment

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for GitHub classroom

1	#!/bin/bash
2
3	# GitHub Classroom Assignment Creator
4	# This script creates a new assignment in a GitHub Classroom using the GitHub CLI
5
6	set -e # Exit on any error
7
8	# Color codes for output
9	RED='\033[0;31m'
10	GREEN='\033[0;32m'

kristofer / millions.java

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experimentation in code is Good Idea

1	import java.time.Duration;
2	import java.time.Instant;
3	import java.util.ArrayList;
4
5	public class Millions {
6
7
8	private Integer[] aArray;
9	private ArrayList<Integer> aList;

kristofer / HTTP Server Java

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a very simple HTTP server in Java

1	package rocks.zipcode;
2
3	import java.io.IOException;
4	import java.io.OutputStream;
5	import java.net.InetSocketAddress;
6
7	import com.sun.net.httpserver.HttpExchange;
8	import com.sun.net.httpserver.HttpHandler;
9	import com.sun.net.httpserver.HttpServer;

kristofer / DTOs (java & python)

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Data Transfer Objects (DTOs) Explained for Beginners (Java, then Python)

Data Transfer Objects (DTOs) via Java; Explained for Beginners

What Are DTOs?

A Data Transfer Object (DTO) is a simple container for data that travels between different parts of your application. Think of a DTO like an envelope specifically designed to carry exactly what's needed—no more, no less.

public class OrderDTO {
    private Long id;
    private String customerName;

kristofer / gist:d3baa93bb0434570863f9306365bece1

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1	sjldjaslkdjalkjddlasjlkjsa.kmd

kristofer / Newbie and Git

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How to SSH keys etc and so for Newbies and Git

Adding a new SSH key to your GitHub account

As a newbie, you don't understand this, but...

when you're in a terminal and you're fussing with git and you push and oops it doesn't work.

Maybe you need to make sure your git account has keys on your Mac so that git push works right.

To configure your account on GitHub.com to use your new (or existing) SSH key, you'll also need to add the key to your account.

kristofer / Maven for Java Newbies

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Maven and POM.xml for Newbie Java Programmers

What is Maven?

Maven is a powerful build automation and project management tool primarily used for Java projects. Think of it as your project's organizer and assistant that handles several critical tasks:

Dependency Management: Automatically downloads and manages libraries your project needs
Project Building: Compiles your code, runs tests, and packages your application
Project Structure: Enforces a standard directory layout for consistent organization

kristofer / vscode and Maven

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Maven and POM.xml with VS Code: A Beginner's Guide

VS Code provides excellent support for Maven projects through extensions, making it a powerful environment for Java development. Here's how Maven and POM.xml work with VS Code:

Essential Extensions

First, you'll need to install these VS Code extensions: