AWT Controls
Every user interface considers the following three main aspects:
UI elements : Thes are the core visual elements the user eventually sees and interacts with. GWT provides a huge list of widely used and common elements varying from basic to complex which we will cover in this tutorial.
Layouts: They define how UI elements should be organized on the screen and provide a final look and feel to the GUI (Graphical User Interface). This part will be covered in Layout chapter.
Behavior: These are events which occur when the user interacts with UI elements. This part will be covered in Event Handling chapter.
Every AWT controls inherits properties from Component class.
| Sr. No. | Control & Description |
|---|
| 1 | Component
A Component is an abstract super class for GUI controls and it represents an object with graphical representation. |
AWT UI Elements:
Following is the list of commonly used controls while designed GUI using AWT.
| Sr. No. | Control & Description |
|---|
| 1 | Label
A Label object is a component for placing text in a container. |
| 2 | Button
This class creates a labeled button. |
| 3 | Check Box
A check box is a graphical component that can be in either an on (true) or off (false) state. |
| 4 | Check Box Group
The CheckboxGroup class is used to group the set of checkbox. |
| 5 | List
The List component presents the user with a scrolling list of text items. |
| 6 | Text Field
A TextField object is a text component that allows for the editing of a single line of text. |
| 7 | Text Area
A TextArea object is a text component that allows for the editing of a multiple lines of text. |
| 8 | Choice
A Choice control is used to show pop up menu of choices. Selected choice is shown on the top of the menu. |
| 9 | Canvas
A Canvas control represents a rectangular area where application can draw something or can receive inputs created by user. |
| 10 | Image
An Image control is superclass for all image classes representing graphical images. |
| 11 | Scroll Bar
A Scrollbar control represents a scroll bar component in order to enable user to select from range of values. |
| 12 | Dialog
A Dialog control represents a top-level window with a title and a border used to take some form of input from the user. |
| 13 | File Dialog
A FileDialog control represents a dialog window from which the user can select a file. |
