First Step

• Constructs the MacRuby Environment
• Creates a New Project
• Creates a Stopwatch Application
• Creates the stopwatch application (with Thread)
• Corresponding to resize the Window
• Changes an Application’s Icon
• Embeds the MacRuby into Application

Advanced

• Original Methods in MacRuby
• Original Constants in MacRuby
• Pointer Class
• Boxed Class
• Sandbox Class

• Using the DTrace