当前位置: 技术问答>java相关
问一道SCJP的题目
来源: 互联网 发布时间:2015-02-02
本文导语: Which of the following operations will cause an ActionEvent to be generated. 1.Clicking a checkbox. 2.Selecting an option from a Choice box. 3.Scrolling a scroll bar. 4.Clicking a button. 5.Pressing "Enter" in a TextField 为什么答案只有4、5的? ...
Which of the following operations will cause an ActionEvent to be generated.
1.Clicking a checkbox.
2.Selecting an option from a Choice box.
3.Scrolling a scroll bar.
4.Clicking a button.
5.Pressing "Enter" in a TextField
为什么答案只有4、5的?
其他那些为什么会没有的?
1.Clicking a checkbox.
2.Selecting an option from a Choice box.
3.Scrolling a scroll bar.
4.Clicking a button.
5.Pressing "Enter" in a TextField
为什么答案只有4、5的?
其他那些为什么会没有的?
|
ActionEvent will generate if:
1.double click list item
2.select an option from toolbar list
3.Clicking a button
4.Pressing "Enter" in a TextField
1.double click list item
2.select an option from toolbar list
3.Clicking a button
4.Pressing "Enter" in a TextField
|
the others are state changed event