问一下java swing [英] ask about java swing

问题描述

如何在java swing中刷新JFrame或JPanel？

或者如何在java swing中刷新我的gui？

推荐答案

看看这个 Stack Overflow 问题：如何在Java中刷新GUI？ [ ^ ]。

Check out this Stack Overflow question: "how do I refresh a GUI in Java?"[^].

如果你检查JavaDoc for Swing / AWT，具体来说Component类的重绘方法（可在此处找到： http：/ /docs.oracle.com/javase/7/docs/api/java/awt/Component.html#repaint() [ ^ ]），您将看到调用此方法将告诉Java重新绘制组件在下一个机会。由于JFrame是一个组件，因此也可以在JFrame或任何其他扩展Component的Swing组件（例如JPanel）上调用此方法。

If you check the JavaDoc for Swing/AWT, specifically the repaint method of the Component class (found here: http://docs.oracle.com/javase/7/docs/api/java/awt/Component.html#repaint()[^]), you will see that calling this method will tell Java to repaint the component at its next opportunity. Since a JFrame is a component, this method can also be called on your JFrame, or any other Swing component that extends Component (such as JPanel).

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