操纵表格
public class ExanpleFrame_04 extends JFrame{ private static final long serialVersionUID = 1L; private JTable table ; public ExanpleFrame_04() { // TODO Auto-generated constructor stub super(); setTitle("操控表格"); setBounds(100,100,500,375); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); final JScrollPane scrollPane = new JScrollPane(); getContentPane().add(scrollPane,BorderLayout.CENTER); String[] columnNames = {"A","B","C","D","E","F","G"}; Vector<String> columnNameV = new Vector<>(); for(int i=0;i<columnNames.length;i++){ columnNameV.add(columnNames[i]); } Vector<Vector<String>> tableBalueV = new Vector<>(); for(int i=1;i<21;i++){ Vector<String>iV = new Vector<>(); for(int j=0;j<columnNames.length;j++){ iV.add(columnNames[j]+i); } tableBalueV.add(iV); } table = new JTable(tableBalueV,columnNameV); table.setRowSelectionInterval(1, 3); table.addRowSelectionInterval(5, 5); scrollPane.setViewportView(table); JPanel buttonpanel = new JPanel(); getContentPane().add(buttonpanel, BorderLayout.SOUTH); JButton selectALLButton = new JButton("全部选择"); selectALLButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub table.selectAll(); } }); buttonpanel.add(selectALLButton); JButton clearSelectionButton = new JButton("全部取消"); clearSelectionButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub table.clearSelection(); } }); buttonpanel.add(clearSelectionButton); System.out.println("表格共有" +table.getRowCount() + "行" + table.getColumnCount() + "列"); System.out.println("共有" + table.getSelectedColumnCount() +"行被选中"); System.out.println("第三行的选择状态为"+ table.isRowSelected(2)); System.out.println("第五行的选择状态为"+ table.isRowSelected(4)); System.out.println("被选中的第一行的引索是:" + table.getSelectedRow()); int[] selectedRows = table.getSelectedRows(); System.out.println("被选中所有行的引索是:"); for(int i=0;i<selectedRows.length;i++){ System.out.print(selectedRows[i] + " "); } System.out.println(); System.out.println("列移动前第二列的名称是:"+ table.getColumnName(1)); System.out.println("列移动前第二行第二列的值是:"+ table.getValueAt(1,1)); table.moveColumn(1, 5); System.out.println("列移动后第二列的名称是" + table.getColumnName(1)); System.out.println("列移动前第二行第二列的值是:"+ table.getValueAt(1,1)); } public static void main(String[] args) { // TODO Auto-generated method stub ExanpleFrame_04 exanpleFrame_04 = new ExanpleFrame_04(); exanpleFrame_04.setVisible(true); } }