Question

用java在文本框实现鼠标点击事件，一点文本框直接跳出新对话框

Answer 1

import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.JFrame;
import javax.swing.JTextField;

public class Exec1 extends JFrame {

public Exec1() {
JTextField txt = new JTextField();
txt.addMouseListener(new MouseListener() {
public void mouseClicked(MouseEvent e) {
new A().setVisible(true);
}
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
}
public void mouseEntered(MouseEvent e) {
}
public void mouseExited(MouseEvent e) {
}
});
add(txt);
setSize(100, 65);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

public static void main(String [] args) {
new Exec1().setVisible(true);
}
}

class A extends JFrame {
public A() {
setSize(400, 400);
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
}
}

Answer 2

这个简单易懂，丢进去就好了，open是打开新页面。alert是弹出一个提示框。
<input type="button" onclick="check()" />
<script>
check(){
open("#.html");
alert("hello world");
}
</script>

Answer 3

onblur 失去焦点响应事件
onfocus 获得焦点响应事件

<script type="text/javascript">
function fun() {
alert("ok");
}
</script>
<input type="text" name="input" onfocus="fun()"/>

Answer 4

<script>
function key_share_group(obj,act)
{
if(act==1)
{
if(obj.value=='关键字')
{
obj.value='';
obj.focus();
}
}else{
if(obj.value=='')
{
obj.value='关键字';
}
}
}
</script>
<input onmousemove="key_share_group(this,1)" onmouseout="key_share_group(this,2);this.disabled=true;" name="key" id="key" value="关键字" size="20" maxlength="20" />

Answer 5

<script>
function key_share_group(obj,act)
{
if(act==1)
{
if(obj.value=='关键字')
{
obj.value='';
obj.focus();
}
}else{
if(obj.value=='')
{
obj.value='关键字';
}
}
}
</script>
<input onmousemove="key_share_group(this,1)" onmouseout="key_share_group(this,2);this.disabled=true;" name="key" id="key" value="关键字" size="20" maxlength="20" />