import javax.swing.JButton
import javax.swing.JFrame
public class c {
public static void main(String[] args) {
// 你懂的
JFrame jf = new JFrame()
// 你懂的
jf.setSize(300, 400)
// JFrame做为一个画板，他里面可以有控件，有控件就有控件布局的样式，样式为null可以理解为自由布局
jf.setLayout(null)
// JFrame的setVisible的默认值为false,值的意义是是否显示.
jf.setVisible(true)
// 按钮
JButton jb = new JButton("按钮")
// 添加按钮
jf.add(jb)
// 因为上面的布局样式，他设置了x50y80坐标和长100宽30
jb.setBounds(50, 80, 100, 30)
}
}
按照你的要求添加两个按钮的Java程序如下:
package com.sunshine.customerimport java.awt.*
import java.awt.event.*
import javax.swing.*
import javax.swing.table.DefaultTableModel
public class JTableDemo extends JFrame implements ActionListener{
private JPanel topPanel
private JTable table
private JButton addRoom=new JButton("添加房间")
private JButton removeRoom=new JButton("删除房间")
private DefaultTableModel dtm
public JTableDemo(){
setTitle( "Simple JTable Application" )
setSize(560, 400 )
setBackground( Color.gray )
topPanel = new JPanel()
topPanel.setLayout( new BorderLayout() )
getContentPane().add( topPanel )
String cols[] = {"房间号","是否预定","房间价格","房间类型","房间状态","卫生情况","剩余时间"}
String rowData[][] = {{ "", "", "","","","",""},
{ "", "", "","","","",""},{ "", "", "","","","",""},{ "", "", "","","","",""},
{ "", "", "","","","",""},{ "", "", "","","","",""},{ "", "", "","","","",""},
{ "", "", "","","","",""},{ "", "", "","","","",""},{ "", "", "","","","",""},
{ "", "", "","","","",""},{ "", "", "","","","",""},{ "", "", "","","","",""},}
dtm=new DefaultTableModel()
dtm.setDataVector(rowData, cols)
table = new JTable(dtm)
JScrollPane scrollPane = new JScrollPane(table)
topPanel.add( scrollPane, BorderLayout.CENTER )
addRoom.addActionListener(this)
removeRoom.addActionListener(this)
JPanel p=new JPanel()
p.add(addRoom)
p.add(removeRoom)
topPanel.add( p,BorderLayout.SOUTH )
}
public static void main( String args[] ) {
JTableDemo mainFrame = new JTableDemo()
mainFrame.setVisible( true )
}
@Override
public void actionPerformed(ActionEvent ae) {
if(ae.getSource()==addRoom){
String row[]={ "", "", "","","","",""}
dtm.addRow(row)
}
if(ae.getSource()==removeRoom){
dtm.removeRow(table.getSelectedRow())
}
}
}
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML>
<HEAD>
<TITLE>New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<script type="text/javascript">
/*
*增加模板行
*/
function addRow() {
var table = document.getElementById("addTable")
var tbody = document.getElementById("templeteTBody")
var newTBody = tbody.cloneNode(true)
newTBody.style.display=""
var footTBody = document.getElementById("footTbody")
return table.insertBefore(newTBody,footTBody)
}
/*
*删除模板行
*/
function deleteRow(obj) {
var tbody = obj.parentNode.parentNode.parentNode
var table = document.getElementById("addTable")
table.removeChild(tbody)
}
/**
*向模板中填充值
*/
function setValue(){
var tbody=addRow()
}
</script>
<BODY>
//页面代码
<input type="button" value="增加" onclick="setValue()">
<table id="addTable">
<tbody id="templeteTBody" style="display: none">
<tr>
<td><input type="button" value="删除" onclick="deleteRow(this)"/></td>
<td>a</td>
<td><input type="text" /></td>
<td>b</td>
<td><input type="text" /></td>
</tr>
</tbody>
<tbody id="footTbody">
</tbody>
</table>
</BODY>
</HTML>
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