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How can I set a window's caption on the Java SE platform?

I want my program to change its window's caption in response to various user actions. Does the Java SE platform offer a portable way to change the main window's caption at runtime, or do I have to resort to native API JNI calls?

你的意思是setTitle

JFrame有一个setTitle()方法,它将设置窗口的标题。

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