Which action takes place while clicking a button in Java?

How do you add an action to a button in Java?

In short, to set action command for JButton one should follow these steps:

  1. Create a class that extends JFrame and implements ActionListener .
  2. Create a new JButton .
  3. Use JButton. addActionListener to add a specific ActionListener to this component.
  4. Use JButton. …
  5. Override actionPerformed method and use ActionEvent.

What is ActionEvent E in Java?

actionPerformed(ActionEvent e) Handles the actionPerformed event by invoking the actionPerformed methods on listener-a and listener-b. void. List.AccessibleAWTList. actionPerformed(ActionEvent event)

What is KeyListener in Java?

KeyListener in Java handles all events pertaining to any action with regards to keyboard. A method will be called whenever the user typed, pressed, or released a key in the keyboard.

What is the package for button in Java?

The JButton class is used to create a labeled button that has platform independent implementation. The application result in some action when the button is pushed. It inherits AbstractButton class.

Which get button method returns?

getButton. Returns which, if any, of the mouse buttons has changed state. The returned value is ranged from 0 to the MouseInfo.

How do you add action listeners to buttons?

In order to handle action events in JButton , all you have to do is:

  1. Create a class that extends JFrame and implements ActionListener .
  2. Create new JButtons .
  3. Override actionPerformed method of ActionListener interface.
  4. Use ActionEvent. …
  5. Use add to add JButtons to the frame.
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How do you add two action listeners in Java?

All you have to do to work with multiple listeners is:

  1. Create a class that extends JFrame and implements ActionListener .
  2. Create an number of these JFrames and put them in an array. …
  3. Create a master JFrame component that has a JButton as a field.
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