jtable3.java

非常好的JAVA学习资料

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.table.*;
import javax.swing.event.*;

public class JTable3 extends JFrame
{
  JPanel cp=new JPanel();
  JPanel panel=new JPanel(new FlowLayout());
  JTable jtable1;
  JTextArea ta=new JTextArea("selected:",10,30);
  JScrollPane jscrp1=new JScrollPane();
  JScrollPane jscrp2=new JScrollPane();
  JButton jb=new JButton("show selected position");
  int SelectedRow=0;
  int SelectedColumn=0;

  public JTable3()
  {
   cp=(JPanel)this.getContentPane();
   this.setTitle("try to use table");
   this.setSize(500,500);
   cp.setLayout(new BorderLayout());

   Object[][] data=
   {{"Jenny","female","football",new Integer(20),"ENGLISH"},
    {"May","female","music",new Integer(20),"ENGLISH"},
    {"Lili","female","art",new Integer(20),"CHINESE"}
   };
   Object[] columnNames={"name","sex","hobby","age","nationality"};

   jtable1=new JTable(data,columnNames);
   jtable1.setRowHeight(20);

   //get table line
   ListSelectionModel rowSM = jtable1.getSelectionModel();

    rowSM.addListSelectionListener(new ListSelectionListener() {
      public void valueChanged(ListSelectionEvent e) {
        if (e.getValueIsAdjusting()) return;
        //one way to get selected line number
          // ListSelectionModel lsm = (ListSelectionModel)e.getSource();
          // SelectedRow = lsm.getMinSelectionIndex();
        //another way to get selected line number
        SelectedRow=jtable1.getSelectedRow();
        ta.append("row change to:" + SelectedRow +"\n");
      }
    });

    //get table column
    ListSelectionModel colSM =jtable1.getColumnModel()
                              .getSelectionModel();
    colSM.addListSelectionListener(new ListSelectionListener() {
      public void valueChanged(ListSelectionEvent e) {
        if (e.getValueIsAdjusting()) return;
        //one way to get selected column number
           //ListSelectionModel lsm = (ListSelectionModel)e.getSource();
           //SelectedColumn = lsm.getMinSelectionIndex();
        //another way to get selected column number
        SelectedColumn=jtable1.getSelectedColumn();
        ta.append("column change to:" + SelectedColumn+"\n");
      }
    });

    jb.addActionListener(new ActionListener()
    {
     public void actionPerformed(ActionEvent e)
     {
      ta.append("NOW AT row:" + SelectedRow + "column:" + SelectedColumn+"\n");
      }
    });

   jscrp1.getViewport().add(jtable1);
   jscrp2.getViewport().add(ta) ;
   panel.add(jscrp2);
   panel.add(jb);
   cp.add(jscrp1,BorderLayout.CENTER);
   cp.add(panel,BorderLayout.SOUTH);
  }

  public static void main(String[] args)
  {
    JTable3 JTable3 = new JTable3();
    JTable3.setVisible(true);
  }

  protected void processWindowEvent(WindowEvent e)
  {
   if(e.getID()==WindowEvent.WINDOW_CLOSING)
   {
    System.exit(0);
   }
  }
}