Hello World Styled is the perfect cross-platform application for anyone looking to build an app with a single code base and a single UI. It uses one of the application styles available for FireMonkey, making it easy to create a consistent look and feel across all platforms. Hello World Styled is perfect for Android, iOS, macOS, Windows, and Linux systems.

Download the full cross-platform Hello World source code on Github.

This demo is part of over 100 cross-platform demos with everything from camera demos to emoji demos and painting demos.

What is a Hello World application in software development?

A “Hello World” program is a software program that prints out the phrase “Hello, world!” on a display device. It is typically used to introduce novice programmers to a programming language or system. The phrase itself is derived from an example program in the seminal 1978 book “The C Programming Language.” While the specific wording of the phrase varies depending on the programming language, the imports of a Hello World program remain the same: to provide a simple example that can be used to learn how to develop cross-platform applications. In recent years, Hello World programs have been used to introduce everything from mobile app development to quantum computing. As such, it remains an important part of the software development process.

Screenshot

What does the source code look like?

unit Unit1;

interface

uses
  System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
  FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs,
  FMX.Controls.Presentation, FMX.StdCtrls;

type
  TForm1 = class(TForm)
    Label1: TLabel;
    MaterialOxfordBlueSB: TStyleBook;
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.fmx}

end.

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