OO Hello World - Golo

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The OO Hello World in Golo, "... Yet another one. A simple one.", is here!

Golo is a simple and lightweight dynamic language for the JVM.

You can see the OO Hello World series post here: http://carlosqt.blogspot.com/2010/06/oo-hello-world.html where I give some details on why these "oo hello world series" samples.

Version 1 (Minimal):

The minimum you need to type to get your program compiled and running.

module blog.series

function Greet = |name| ->
    DynamicObject(): 
    name(name: substring(0,1): toUpperCase() 
            + name: substring(1, name: length())): 
    define("salute", |this| -> println("Hello " + this: name() + "!"))

function main = |args| {
    let g = Greet("world")
    g: salute()
}

Version 2 (Verbose):

Explicitly adding instructions and keywords that are optional to the compiler.

module blog.series

local function Greet = |name| ->
    DynamicObject(): 
    name(name: substring(0,1): toUpperCase() 
            + name: substring(1, name: length())): 
    define("salute", |this| -> println("Hello " + this: name() + "!"))

function main = |args| {
    let g = Greet("world")
    g: salute()
}

The Program Output:

Golo Info:

Golo is a simple, dynamic and weakly-typed language that favours explicit over implicit and that runs on the Java Virtual Machine. It also supports the latest JVM features such as invokedynamic.

Appeared:	2013
Current Version:	0.1  (latest version in "Languages" page)
Developed by:	DynaMid research project members of the CITI Laboratory
Creator:	Julien Ponge
Influenced by:	Java (James Gosling)
Predecessor Language	N/A
Predecessor Appeared	N/A
Predecessor Creator	N/A
Runtime Target:	JVM
Latest Framework Target:	JDK 7
Mono Target:	No
Allows Unmanaged Code:	No
Source Code Extension:	“.golo”
Keywords:	33
Case Sensitive:	Yes
Free Version Available:	Yes
Open Source:	Yes
Standard:	N/A
Latest IDE Support:	http://golo-lang.org/documentation/next/#_editor_ide_support
Language Reference:	http://golo-lang.org/documentation/next/
Extra Info: