1JPaneljpanel=newJPanel();23jpanel.setBorder(BorderFactory.你需要的样式);45BorderFactory.createLineBorder(Color.red,3)//线边框67BorderFactory.createEtchedBorder()/...

1.JPanel默认布局是FlowLayout，如果不设置父JPanel的布局，则子JPanel自动填满父JPanel。JPaneljpanel=newJPanel();jpanel.setLayout(null)//将父JPanel的布局设置为绝对布局 2.通过setBounds(）属性设置子JPanel相...

publicclassJPanelTestextendsJFrame{publicJPanelTest(){//TODOAuto-generatedconstructorstubContainerc=getContentPane();setLayout(newGridLayout(2,2,10,10));JPanelp...