The Abstract Window Toolkit (AWT) is Java’s original platform-dependent windowing, graphics, and user-interface widget toolkit preceding Swing.AWT Components in Java
With colors and fonts, readability increases as important noteworthy topics can be colored. All the latest operating systems support colors and fonts and allow customizing also. To support colors and fonts, the java.awt package includes Color class and Font class. Standard Color Models Color can be specified in two formats – RGB and HSB. 1. …
Checkbox is another Java component used by the programmer when the user is left with two options only – either yes or no, that is, want or don't want. The check box when selected by the user, returns true and when deselected returns false. The checkbox toggles between two states – true or false. The …
After learning GUI creation through 8 steps, for more command over button event handling, apart this one, another two programs are given – Changing Button Label and Making Button Enabled. Example on Java make Button Invisible In the following program, three buttons are created with labels Red, Green and Blue. When Red button is clicked, …
After learning GUI creation through 8 steps, for more command over button event handling, apart this one, another two programs are given – Changing Button Label and Making Button Invisible. In the following program, three buttons are created with labels Red, Green and Blue. When Red button is clicked, the Blue button is enabled and …
FlowLayout Manager Example: It is the mostly used along with panels and is the default manager for Applets and Panels. It arranges the components on the north (top) side of the container. The components, by default, centered on the north side. The alignment can be changed to left or right. The default gap between the …
After knowing the importance of layout managers, FlowLayout and BorderLayout, let us study the other layout manager – GridLayout. As the name indicates the container is divided into a grid of cells dictated by rows and columns. Each cell accommodates one component. Like with FlowLayout, in GridLayout also, the position need not be mentioned. But …
BorderLayout Manager Example: After knowing the layout managers, FlowLayout and GridLayout functionality, let us go to the style of BorderLayout arrangement of components in a container. As the name indicates the container is divided into 5 regions – 4 borders (North, South, East, West) and 1 Center. Following are the properties of BorderLayout manager. Components …
To display a component, it is inevitable to add it to a container. Container is an area on the monitor that can hold and display the components. The frequently used containers are Frame and Panel; the less used and restricted to browser applications is Applet. To place a component inside a container, there exist two …
After Button, the most used AWT component is TextField. TextField is useful to take input from the user and also to display output to the user by the programmer. User can write and edit the text in the TextField. Programmatically, the TextField can be made non-editable. Pressing Enter key generates ActionEvent and can be handled …
The java.awt package comes with many GUI components of which Button is the most important and most frequently used. A button functionality (what for it is) can be known by its label like OK or Cancel etc. A mouse click on the button generates an action. Following is the class signature public class Button extends …
AWT stands for Abstract Window Toolkit. It is a toolkit of classes with which a programmer can develop Graphics and Graphical User Interface components. AWT gives a front-end technology to Java using which a user can interact with a running process; the old style is scanf. Usage of GUI environment is easier even for a …
Dialog boxes are pop-up windows on the screen that appear for a small time to take either input or display output while a main application is running. The windows that appear for a brief time are known as transient windows. Dialog boxes are generally used to draw special attention of the user like displaying warnings. …
The frame created by the programmer and displayed on the monitor comes with a title bar and three icons(buttons) on the title bar – Minimize, Maximize and Close. The first two works implicitly and the Close does not work and requires extra code to close the frame. Java Frame Closing – 4 styles Four styles …
The frame created by the programmer and displayed on the monitor comes with a title bar and three icons(buttons) on the title bar – Minimize, Maximize and Close. The first two works implicitly and the Close does not work and requires extra code to close the frame. Java Frame Closing – 4 styles Four styles …
