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如何在JComponent上从paint方法绘制虚线?

[英]How do I draw a dotted line from the paint method on a JComponent?

I have to draw a dotted or dashed line In a JComponent. 我必须在JComponent中绘制虚线。 How do I do that? 我怎么做?

Get a hold of a Graphics2D , and use its setStroke() method to set a suitable stroke. 握住Graphics2D ,并使用其setStroke()方法设置合适的笔触。 It should be enough with a BasicStroke to get a dotted line, nothing fancy. BasicStroke应该足以得到虚线,没有花哨的地方。

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