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What is graphics class in applet?

Posted on October 28, 2020 by Author

Table of Contents

  • 1 What is graphics class in applet?
  • 2 What is graphics in applet in Java?
  • 3 How do you use a graphic class?
  • 4 What is a graphics object?
  • 5 What does the Graphics class provide for methods for drawing Graphics?
  • 6 What is the role of the Graphics object?
  • 7 What is the use of graphics class in Java?
  • 8 Which class provides the life cycle method of an applet?

What is graphics class in applet?

The Graphics class is the abstract super class for all graphics contexts which allow an application to draw onto components that can be realized on various devices, or onto off-screen images as well. A Graphics object encapsulates all state information required for the basic rendering operations that Java supports.

What is graphics in applet in Java?

Graphics in Applets The java. Graphics class provides many methods for graphics programming. Some commonly used public methods in the Graphics class: abstract void setClor(Color clr) sets the Graphics current color to the specified color. abstract void drawString(String strng, int a, int b) draws the specified string.

In which package graphics class is present in Java?

awt
Java Graphics Class. Java contains many predefined classes grouped into packages. The Graphics class resides in the awt (abstract windowing toolkit) package.

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How do you declare graphics in Java?

B. 1 Creating graphics

  1. Create a JFrame object, which is the window that will contain the canvas.
  2. Create a Drawing object (which is the canvas), set its width and height, and add it to the frame.
  3. Pack the frame (resize it) to fit the canvas, and display it on the screen.

How do you use a graphic class?

Whenever an application needs to draw or paint something, it has to use the Graphics object. Hence, understanding the Graphics class, its methods, and its properties is very important….The Graphics Class.

Mehtods Description
DrawRectangle Draws a rectangle specified by a coordinate pair, a width, and a height.

What is a graphics object?

The Graphics object represents a GDI+ drawing surface, and is the object that is used to create graphical images. Using the Graphics object to draw lines and shapes, render text, or display and manipulate images.

What is a Graphics object?

Why Graphics is considered an abstract class?

The Graphics class is abstract so that components using the Graphics class can provide a custom concrete implementation of it that is specific to the component and in cases even platform-specific. If you are able to create a new Graphics object by invoking: Graphics g = new Graphics();

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What does the Graphics class provide for methods for drawing Graphics?

Second, the Graphics class provides methods for drawing simple geometric shapes, text, and images to the graphics destination. All output to the graphics destination occurs via an invocation of one of these methods.

What is the role of the Graphics object?

Purpose of Graphics Objects Graphics objects represent data in intuitive and meaningful ways, such as line graphs, images, text, and combinations of these objects. Graphics objects act as containers for other objects or as representations of data.

How do I run a Graphics program in Java?

Example of Graphics in applet:

  1. import java. applet. Applet;
  2. import java. awt. *;
  3. public class GraphicsDemo extends Applet{
  4. public void paint(Graphics g){
  5. g. setColor(Color. red);
  6. g. drawString(“Welcome”,50, 50);
  7. g. drawLine(20,30,20,300);
  8. g. drawRect(70,100,30,30);

Why abstract class is used in Java?

Java Abstract class can implement interfaces without even providing the implementation of interface methods. Java Abstract class is used to provide common method implementation to all the subclasses or to provide default implementation. We can run abstract class in java like any other class if it has main() method.

What is the use of graphics class in Java?

java.awt.Graphics class provides many methods for graphics programming. Commonly used methods of Graphics class: public abstract void drawString (String str, int x, int y): is used to draw the specified string. public void drawRect (int x, int y, int width, int height): draws a rectangle with the specified width and height.

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Which class provides the life cycle method of an applet?

The Component class provides 1 life cycle method of applet. public void paint (Graphics g): is used to paint the Applet. It provides Graphics class object that can be used for drawing oval, rectangle, arc etc. Who is responsible to manage the life cycle of an applet? Java Plug-in software. How to run an Applet? By html file.

Why class must be public in Java?

Note: class must be public because its object is created by Java Plugin software that resides on the browser. To execute the applet by appletviewer tool, create an applet that contains applet tag in comment and compile it.

What is the simple example of applet by HTML file?

Simple example of Applet by html file: 1 import java.applet.Applet; 2 import java.awt.Graphics; 3 public class First extends Applet {. 4 public void paint (Graphics g) {. 5 g.drawString (“welcome”,150,150);

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