java项目中常用到的一些效果(皮肤包、树...).doc

右键(弹出)菜单 /为要添加右键菜的组件添加mouseClickedif(e.getButton()=e.BUTTON3) this.jPopupMenu1.show(this.jPanel1,e.getX(),e.getY(); this.jPopupMenu1.setVisible(true);消息框：1、提示框 JOptionPane.showMessageDialog(null,hello);2、选择框int i=JOptionPane.showConfirmDialog(null,确定要吧,提示,JOptionPane.YES_NO_OPTION);int i=JOptionPane.showConfirmDialog(null,确定要吧,提示,JOptionPane.OK_CANCEL_OPTION,JOptionPane.ERROR_MESSAGE); 3、输入框 String s= JOptionPane.showInputDialog(null, 请输入价格:);设置表头不可移动header = jTable1.getTableHeader(); /获是jTable1的表头header.setReorderingAllowed(false); /设置用户是否可以移动列头header.setResizingAllowed(false); /是否可以调整列的宽度/设置列的宽度TableColumnModel columnModel = jTable1.getColumnModel();columnModel .getColumn(2).setPreferredWidth(200);图片浏览 JFileChooser pic=new JFileChooser(); pic.showOpenDialog(this); File f=pic.getSelectedFile(); String path=f.getAbsolutePath(); ImageIcon img=new ImageIcon(path); jLabel1.setIcon(img);皮肤包import com.birosoft.liquid.LiquidLookAndFeel;改UIManager.setLookAndFeel(UIManager. getSystemLookAndFeelClassName();为javax.swing.UIManager.setLookAndFeel(com.birosoft.liquid.LiquidLookAndFeel);注：导入皮肤包设置窗口1、 居中窗口对象.setSize(800,600); Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); Dimension frameSize = 窗口.getSize(); 窗口.setLocation(screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2); 窗口.setVisible(true);2、 大小不可以改变m.setResizable(false);3、 Dialog4、 Jwindow往树上添加节点/获得选中的节点DefaultMutableTreeNode n=(DefaultMutableTreeNode) jTree1.getLastSelectedPathComponent();/如果节点为空，就返回if (n = null) return;/产生新的节点 DefaultMutableTreeNode newNode=new DefaultMutableTreeNode(this.txtValue.getText();model.insertNodeInto(newNode,n,n.getChildCount();/树模型.insertNodeInto(新节点,父节点,位置)/获得当前节到根节点的所有节点TreeNode nodes=model.getPathToRoot(newNode);TreePath path=new TreePath (nodes);/ 获得这些节点路径jTree1.scrollPathToVisible(path); /将这些节点设置可见往树上删除节点 /获得选中的树节点DefaultMutableTreeNode n = (DefaultMutableTreeNode) jTree1. getLastSelectedPathComponent();/如果没有选中节点，返回if (n = null) return;/如果节点不能空，且该节点有父节点（即不是根节点）就删除if (n != null & n.getParent() != null) model.removeNodeFromParent(n);附件：1、记事本try Process p = Runtime.getRuntime().exec(notepad.exe); catch (IOException ex) ex.printStackTrace(); 2、计算器 try Process p = Runtime.getRuntime().exec(calc.exe); catch (IOException ex) ex.printStackTrace(); 3、帮助try String command = C:Program FilesInternet ExplorerIEXPLORE.EXE E:/我的作业/4.0C语言答案大全/index.htm; Proces