After reading so many informative posts this morning (strokes, Sudoku, knitting, computer animation, shorthand, and many more), I thought I’d write my own. I’ll start with a poem:

Roses are red
Violets are blue
Java is awesome
And so are you!

I learnt Java through Kathy Sierra’s Head First Java:

The reason why I loved it so much was because of the poetry scattered throughout:

And another one:

Of course, I never realized this at the time. They were mere snippets of the book that really resonated with me (Wow, look at all this poetry, it is so cool, awesomeness). I would write all my own verses to match the ones I’d read.

So here’s a quick tutorial on a first Java program.

The following steps are how to get started with coding.

Install Java on any computer. And then follow the steps:

1. Create and save MyFirstApp.java (included below). For beginner purposes this can be done in a notepad and not an IDE. In fact, we never had the luxury of IDEs when I studied “so long ago”. In the days before Google.

2. Compile to create a class file (MyFirstApp.class) (google it if you need details)
javac MyFirstApp.java

3. Run the app from the console

And here is how a sample .java file looks like:

public class MyFirstApp {

public static void main(String[] args) {
System.out.println(“I Rule!”);
System.out.println(“The World”);
}
}

It’s been suggested I never go into teaching, so I’ll write poetry instead:

Roses are red
Violets are blue
I love coding
How about you?

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