What is Java awt Graphics?
The Graphics class is the abstract base class for all graphics contexts that allow an application to draw onto components that are realized on various devices, as well as onto off-screen images. A Graphics object encapsulates state information needed for the basic rendering operations that Java supports.
How do you code Graphics in Java?
Example of displaying graphics in swing:
- import java.awt.*;
- import javax.swing.JFrame;
- public class DisplayGraphics extends Canvas{
- public void paint(Graphics g) {
- g.drawString(“Hello”,40,40);
- setBackground(Color.WHITE);
- g.fillRect(130, 30,100, 80);
- g.drawOval(30,130,50, 60);
How do you draw in Java?
Basically, all you have to do in order to draw shapes in a Java application is:
- Create a new Frame .
- Create a class that extends the Component class and override the paint method.
- Use Graphics2D.
- Use Graphics2D.
- Use Graphics2D.
- Use Graphics2D.
In which package is Graphics class present?
awt
Java contains many predefined classes grouped into packages. The Graphics class resides in the awt (abstract windowing toolkit) package. This class contains instance data regarding the current graphics ‘context’. The context includes the current drawing color, font and transformation information (ie.
What are the different types of controls in AWT?
The AWT supports the following types of controls:
- Labels.
- Push buttons.
- Check boxes.
- Choice lists.
- Lists.
- Scroll bars.
- Text Area.
- Text Field.
What is Java AWT used for?
Abstract Window Toolkit (AWT) is a set of application program interfaces ( API s) used by Java programmers to create graphical user interface ( GUI ) objects, such as buttons, scroll bars, and windows.
What is AWT in Java explain its features?
Java AWT is an API that contains large number of classes and methods to create and manage graphical user interface ( GUI ) applications. The AWT was designed to provide a common set of tools for GUI design that could work on a variety of platforms. The tools provided by the AWT are implemented using each platform’s native GUI toolkit, hence preserving the look and feel of each platform.
What are AWT packages in Java?
Some of the inbuilt packages in java are : java.awt : Contains classes for creating user interfaces and for painting graphics and images. java.io : Provides classes for system input/output operations. java.lang : Contains classes and interfaces that are fundamental to the design of Java programming language. java.net : Provides classes for implementing networking applications.
What is a top-level window in Java AWT?
The class Window is a top level window with no border and no menubar. It uses BorderLayout as default layout manager. Following is the declaration for java.awt.Window class: Constructs a new, initially invisible window with the specified Frame as its owner.
What is graphics in Java?
The Graphics class is the abstract base class for all graphics contexts that allow an application to draw onto components that are realized on various devices, as well as onto off-screen images. A Graphics object encapsulates state information needed for the basic rendering operations that Java supports. This state information includes the following properties: