JTable 一个最好的例子，,import java.

JTable 一个最好的例子，,import java.

import java.awt.BorderLayout;import java.awt.Color;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.Vector;import javax.swing.DefaultCellEditor;import javax.swing.JButton;import javax.swing.JComboBox;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTable;import javax.swing.table.AbstractTableModel;import javax.swing.table.TableColumnModel;/*** JTable的实用小例子** @author 五斗米 <如转载请保留作者和出处>* @blog <a href="http://blog.csdn.net/mq612">http://blog.csdn.net/mq612*/public class Test {    private JFrame frame = null;    private JTable table = null;    private Table_Model model = null;    private JScrollPane s_pan = null;    private JButton button_1 = null, button_2 = null, button_3 = null;    private JPanel pane = null;    public Test() {        frame = new JFrame("JTableTest");        pane = new JPanel();        button_1 = new JButton("清除数据");        button_1.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                removeData();            }        });        button_2 = new JButton("添加数据");        button_2.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                addData();            }        });        button_3 = new JButton("保存数据");        button_3.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                saveData();            }        });        pane.add(button_1);        pane.add(button_2);        pane.add(button_3);        model = new Table_Model(20);        table = new JTable(model);        table.setBackground(Color.white);        String[] age = { "16", "17", "18", "19", "20", "21", "22" };        JComboBox com = new JComboBox(age);        TableColumnModel tcm = table.getColumnModel();        tcm.getColumn(3).setCellEditor(new DefaultCellEditor(com));        tcm.getColumn(0).setPreferredWidth(50);        tcm.getColumn(1).setPreferredWidth(100);        tcm.getColumn(2).setPreferredWidth(50);        s_pan = new JScrollPane(table);        frame.getContentPane().add(s_pan, BorderLayout.CENTER);        frame.getContentPane().add(pane, BorderLayout.NORTH);        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        frame.setSize(300, 200);        frame.setVisible(true);    }    private void addData() {        model.addRow("李逵", true, "19");        table.updateUI();    }    private void removeData() {        model.removeRows(0, model.getRowCount());        table.updateUI();    }    // 保存数据，暂时是将数据从控制台显示出来    private void saveData() {        int col = model.getColumnCount();        int row = model.getRowCount();        for (int i = 0; i < col; i++) {            System.out.print(model.getColumnName(i) + "\\t");        }        System.out.print("\\r\\n");        for (int i = 0; i < row; i++) {            for (int j = 0; j < col; j++) {                System.out.print(model.getValueAt(i, j) + "\\t");            }            System.out.print("\\r\\n");        }        System.out.println("------------------------------------");    }    public static void main(String args[]) {        new Test();        System.out                .println("按下保存按钮将会把JTable中的内容显示出来\\r\\n------------------------------------");    }}/*** TableModel类，继承了AbstractTableModel** @author 五斗米**/class Table_Model extends AbstractTableModel {    private static final long serialVersionUID = -7495940408592595397L;    private Vector content = null;    private String[] title_name = { "ID", "姓名", "性别", "年龄" };    public Table_Model() {        content = new Vector();    }    public Table_Model(int count) {        content = new Vector(count);    }    public void addRow(String name, boolean sex, String age) {        Vector v = new Vector(4);        v.add(0, new Integer(content.size()));        v.add(1, name);        v.add(2, new Boolean(sex));        v.add(3, age);        content.add(v);    }    public void removeRow(int row) {        content.remove(row);    }    public void removeRows(int row, int count) {        for (int i = 0; i < count; i++) {            if (content.size() > row) {                content.remove(row);            }        }    }    /**    * 让表格中某些值可修改，但需要setValueAt(Object value, int row, int col)方法配合才能使修改生效    */    public boolean isCellEditable(int rowIndex, int columnIndex) {        if (columnIndex == 0) {            return false;        }        return true;    }    /**    * 使修改的内容生效    */    public void setValueAt(Object value, int row, int col) {        ((Vector) content.get(row)).remove(col);        ((Vector) content.get(row)).add(col, value);        this.fireTableCellUpdated(row, col);    }    public String getColumnName(int col) {        return title_name[col];    }    public int getColumnCount() {        return title_name.length;    }    public int getRowCount() {        return content.size();    }    public Object getValueAt(int row, int col) {        return ((Vector) content.get(row)).get(col);    }    /**    * 返回数据类型    */    public Class getColumnClass(int col) {        return getValueAt(0, col).getClass();    }}//该片段来自于http://byrx.net