Table of Contents
What events does JComboBox generate?
JComboBox() : creates a new empty JComboBox . JComboBox(ComboBoxModel M) : creates a new JComboBox with items from specified ComboBoxModel. JComboBox(E [ ] i) : creates a new JComboBox with items from specified array. JComboBox(Vector items) : creates a new JComboBox with items from the specified vector.
What event does the JTextField generate?
When the user is typing in a JTextField and presses return, an ActionEvent is generated. If you want to respond to such events, you can register an ActionListener with the text field, using the text field’s addActionListener() method.
Which event is generated by list?
Listener
| Event Classes | Description |
|---|---|
| ActionEvent | ActionEvent is generated when a source such as a button is clicked, an item in the list is double-clicked or when a menu item is selected. |
| ItemEvent | ItemEvent is generated when a source such as a checkbox is clicked to check/uncheck it or when a list item is clicked. |
What is AWT event class?
It is the root class from which all event state objects shall be derived. All Events are constructed with a reference to the object, the source, that is logically deemed to be the object upon which the Event in question initially occurred upon.
What is a class event?
In ABL, class events are always defined as part of a class-based object definition, which can include one of the following object types: An ABL class or interface type. A . NET class or interface type.
What is a JPanel?
JPanel, a part of the Java Swing package, is a container that can store a group of components. The main task of JPanel is to organize components, various layouts can be set in JPanel which provide better organization of components, however, it does not have a title bar.
How to get the command string of action event in jtextfield?
JTextField has a method to establish the string used as the command string for the action event that gets fired. The java.awt.TextField used the text of the field as the command string for the ActionEvent . JTextField will use the command string set with the setActionCommand method if not null ,…
What is notifyaction in jtextfield?
The class JTextField is a component which allows the editing of a single line of text. static String notifyAction − Name of the action to send notification that the contents of the field have been accepted.
What is jtextfield class in Java?
public class JTextField extends JTextComponent implements SwingConstants JTextField is a lightweight component that allows the editing of a single line of text. For information on and examples of using text fields, see How to Use Text Fields in The Java Tutorial.
What is getactions in class jtextcomponent?
getActions in class JTextComponent Processes action events occurring on this textfield by dispatching them to any registered ActionListener objects. This is normally called by the controller registered with textfield. Gets the visibility of the text field.