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Create a working Swing application with a main window. This is the foundation of every Swing application you will ever build.

与传统的 Java IDE（如 Eclipse、NetBeans）相比，IntelliJ IDEA 最大的特色在于其“智能”二字。它不仅是一个代码编辑器，更是一个能够深入理解代码结构、预测开发者意图的智能助手。从智能代码补全、实时代码分析，到强大的重构引擎和深度集成的工具链，IntelliJ IDEA 重新定义了 Java 开发的效率标准。