What is the use of WindowListener?

The WindowListener interface defines methods that handle most window events, such as the events for opening and closing the window, activation and deactivation of the window, and iconification and deiconification of the window.

What are the different types of methods in WindowListener?

Methods of WindowListener interface

Sr. no.	Method signature
1.	public abstract void windowActivated (WindowEvent e);
2.	public abstract void windowClosed (WindowEvent e);
3.	public abstract void windowClosing (WindowEvent e);
4.	public abstract void windowDeactivated (WindowEvent e);

What is AWT container?

Containers are integral part of AWT GUI components. A container provides a space where a component can be located. A Container in AWT is a component itself and it adds the capability to add component to itself. Following are noticable points to be considered. Sub classes of Container are called as Containter.

What are the types of controls supported by the AWT?

To make an effective GUI, Java provides java. awt package that supports various AWT controls like Label, Button, CheckBox, CheckBox Group, List, Text Field, Text Area, Choice, Canvas, Image, Scrollbar, Dialog, File Dialog, etc that creates or draw various components on web and manage the GUI based application.

Which is not methods of Windowlistener interface?

The object can be registered using the addWindowListener() method….Interface methods.

S.N.	Method & Description
4	void windowDeactivated(WindowEvent e) Invoked when a Window is no longer the active Window.
5	void windowDeiconified(WindowEvent e) Invoked when a window is changed from a minimized to a normal state.

What is a windowlistener?

The listener interface for receiving window events. The class that is interested in processing a window event either implements this interface (and all the methods it contains) or extends the abstract WindowAdapter class (overriding only the methods of interest).

How to register a windowlistener object in Java?

The object can be registered using the addWindowListener () method. Following is the declaration for java.awt.event.WindowListener interface − Invoked when the Window is set to be the active Window. Invoked when a window has been closed as a result of calling dispose on the Window.

What is a JFrame windowlistener?

A WindowListener represents any object that needs to respond to window events, i.e. changes in the state of the window (a JFrame in this case) when it is activated, iconified etc. The listener may also represent a graphical component but need not do so. Here is a very simple example that I hope will illustrate the concepts.