java.lang.Object
|
+--java.awt.Component
|
+--java.awt.Container
|
+--javax.swing.JComponent
|
+--javax.swing.AbstractButton
|
+--javax.swing.JMenuItem
|
+--javax.swing.JMenu因此可以利用AbstractButton作文章,改变JMenu的观感
|
+--java.awt.Component
|
+--java.awt.Container
|
+--javax.swing.JComponent
|
+--javax.swing.AbstractButton
|
+--javax.swing.JMenuItem
|
+--javax.swing.JMenu因此可以利用AbstractButton作文章,改变JMenu的观感
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