What is MouseListener explain with example?

Java MouseListener Interface The Java MouseListener is notified whenever you change the state of mouse. It is notified against MouseEvent. The MouseListener interface is found in java. awt.

What is mouse listener?

Interface MouseListener The listener interface for receiving “interesting” mouse events (press, release, click, enter, and exit) on a component. (To track mouse moves and mouse drags, use the MouseMotionListener .)

Which method is used to process mouse click public void?

public void mouseDragged(MouseEvent evt); public void mouseMoved(MouseEvent evt); The mouseDragged method is called if the mouse is moved while a button on the mouse is pressed. If the mouse is moved while no mouse button is down, then mouseMoved is called instead. The parameter, evt, is an object of type MouseEvent.

What does getButton () method return?

getButton. Returns which, if any, of the mouse buttons has changed state.

When clicking the OK button the program displays the OK button is clicked?

The message “The OK button is clicked” is displayed when you click the OK button. When clicking the Cancel button, the program displays The OK button is clicked. The program has a runtime error, because the handler is registered with more than one source.

What class of events do button clicks create?

action event
When the user clicks the onscreen button, the button fires an action event. This results in the invocation of the action listener’s actionPerformed method (the only method in the ActionListener interface). The single argument to the method is an ActionEvent object that gives information about the event and its source.

How does a MouseListener differ from a MouseMotionListener?

What are the differences between a MouseListener and a MouseMotionListener in Java? We can implement a MouseListener interface when the mouse is stable while handling the mouse event whereas we can implement a MouseMotionListener interface when the mouse is in motion while handling the mouse event.