Which of the following is a valid Java event.
Which of the following is a valid Java event.
The correct option is D All of the above
All of the above are valid Java event.
In Java, events are handled in terms of event
sources and event listeners. An event source is an object that produces an
event, and an event listener is an object that wants to be informed when an
event occurs. For example, a button is an event source, and an animation object
might be an event listener.
A JavaScript can be executed when an event occurs,
like when a user clicks on an HTML element. To execute code when a user clicks
on an element, add JavaScript code to an HTML event attribute: onclick=JavaScript.
Examples of HTML events: When a user clicks the mouse.
HTML. The plain HTML way is to put it in a
<form> wherein you specify the desired target URL in the action
attribute. If necessary, set CSS display: inline; on the form to keep it in the
flow with the surrounding text. Instead of <input
type="submit"> in above example, you can also use <button
type="submit"> .
Usually, you handle radio button clicks using an
action listener. Below is the code from RadioButtonDemo.java that creates the
radio buttons in the previous example and reacts to clicks. For each group of
radio buttons, you need to create a ButtonGroup instance and add each radio
button to it.
All of the above are valid Java event.
In Java, events are handled in terms of event sources and event listeners. An event source is an object that produces an event, and an event listener is an object that wants to be informed when an event occurs. For example, a button is an event source, and an animation object might be an event listener.
A JavaScript can be executed when an event occurs, like when a user clicks on an HTML element. To execute code when a user clicks on an element, add JavaScript code to an HTML event attribute: onclick=JavaScript. Examples of HTML events: When a user clicks the mouse.
HTML. The plain HTML way is to put it in a <form> wherein you specify the desired target URL in the action attribute. If necessary, set CSS display: inline; on the form to keep it in the flow with the surrounding text. Instead of <input type="submit"> in above example, you can also use <button type="submit"> .
Usually, you handle radio button clicks using an action listener. Below is the code from RadioButtonDemo.java that creates the radio buttons in the previous example and reacts to clicks. For each group of radio buttons, you need to create a ButtonGroup instance and add each radio button to it.
