Sample document: Rice

The Greeter class

class Greeter
  def initialize(world)
    @world = world.capitalize
  end

  def salute
    puts "Hello #{@world}!"
  end
end

Create a new object

g = Greeter.new("world")

Output "Hello World!"

g.salute

print('Hello, World!')

class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, World!");
    }
}