在JFrame中添加背景图，可是JPanel会覆盖JFrame中的背景图，请问如何将JPanel设为透明 查到setOpaque方法，但不起作用，代码如下。 import java.awt.*; import javax.swing.*; add(new MyPanel(true), BorderLayout.SOUTH); add(new MyPanel(false), BorderLayout ...

Swing is an extension library to the AWT, includes new and improved components that enhance the look and functionality of GUIs. Swing can be used to build Standalone swing gui Apps as well as Servlets ...

The JDesktopPane class, first introduced in JDK 1.2 as a subsidiary to Swing’s GUI component series, lets you create a virtual desktop or Multiple Document Interface (MDI) in Java applications.