综述：特色应用袖珍星星是一个综合天文星图、星历、天文导航计算器。
Summary: Pocket Stars is an astronomy application featuring an integrated star chart, ephemeris, and celestial navigation calculator.
我将构建一个简单的计算器应用程序，逐步改进它的外观和感觉，修改它的结构来添加依赖性注入，以及实现JSF的导航机制。
You build a simple calculator application and, in subsequent iterations, improve its look and feel, modify its structure to add dependency injection, and implement JSF's navigation mechanism.
比如导航，记事本，上网，日历，闹钟，计算器，录音，播放器……多种功能见证着人类的进步。
Such as a navigation, notepad, Internet, calendar, clock, calculator, recording, player… A variety of functions witnesses the human progress.
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