/**
     *选中某行，并返回信息到文本框
     */
    private void jTable1MouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jTable1MouseClicked
        int rr;
        String tt = null;
        rr = jTable1.getSelectedRow();
        String t = jTable1.getValueAt(rr,0).toString();
        String t1 = jTable1.getValueAt(rr,1).toString();
        String t2 = jTable1.getValueAt(rr,2).toString();
        String t3 = jTable1.getValueAt(rr,3).toString();
        jTextField1.setText(t);
        jTextField2.setText(t1);
        jTextField3.setText(t2);
        jTextField4.setText(t3);

import java.awt.*;
import javax.swing.*;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.table.*;
import java.util.*;

public class Frame1
    extends JFrame implements ActionListener {
  public Frame1() {
    try {
      jbInit();
    }
    catch (Exception exception) {
      exception.printStackTrace();
    }
  }

  JPanel jPanel1 = new JPanel();
  JButton jButton1 = new JButton();//add rows in the table
  DefaultTableModel dtm = new DefaultTableModel(0, 3);
  DefaultTableModel dtm1 = new DefaultTableModel(0, 3);
  JButton jButton2 = new JButton();//clear table
  JButton jButton3 = new JButton();//move table1 to table2 "<<"
  JPanel jPanel2 = new JPanel();
  JScrollPane jScrollPane1 = new JScrollPane();
  JTable jTable1 = new JTable(dtm);
  JScrollPane jScrollPane2 = new JScrollPane();
  JTable jTable2 = new JTable(dtm1);

  private void jbInit() throws Exception {
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    jButton2.setText("清空 ");
    jButton2.addActionListener(this);
    jButton3.setText(" < < ");
    this.getContentPane().add(jPanel1, java.awt.BorderLayout.SOUTH);
    jButton1.addActionListener(this);
    jPanel1.add(jButton1);
    jPanel1.add(jButton2);
    this.getContentPane().add(jPanel2, java.awt.BorderLayout.CENTER);
    jPanel2.add(jScrollPane2);
    jScrollPane2.getViewport().add(jTable2);
    jPanel2.add(jButton3);
    jPanel2.add(jScrollPane1);
    jScrollPane1.getViewport().add(jTable1);
    jButton3.addActionListener(this);
    jButton1.setText("添加一行 ");
    this.setBounds(0, 0, 1000, 700);
    this.setVisible(true);
  }


  public static void main(String[] args) {
    Frame1 f = new Frame1();
  }

  public void actionPerformed(ActionEvent e) {
    if (e.getSource().equals(jButton2)) { //清空
      while (dtm.getRowCount() > 0) {
        dtm.removeRow(0);
      }
    }
    else if (e.getSource().equals(jButton1)) { //添加一行
      String[] a = {
          String.valueOf(Math.random()), String.valueOf(Math.random()),
          String.valueOf(Math.random())};
      dtm.addRow(a);
    }
    else if (e.getSource().equals(jButton3)) {
      if (this.jTable1.getSelectedRow() >= 0) {
        //System.out.println(dtm.getDataVector().get(jTable1.getSelectedRow()).getClass());
        //dtm1.addRow((String[])dtm.getDataVector().get(jTable1.getSelectedRow()));
        dtm1.addRow( (Vector) dtm.getDataVector().get(jTable1.[b]getSelectedRow[/b]()));
      }
    }
  }
}