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Thursday, 25 May 2017 06:07

Displaying Graphics in Applet

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java.awt.Graphics class provides many methods for graphics programming.

Commonly used methods of Graphics class:

  1. public abstract void drawString(String str, int x, int y): is used to draw the specified string.
  2. public void drawRect(int x, int y, int width, int height): draws a rectangle with the specified width and height.
  3. public abstract void fillRect(int x, int y, int width, int height): is used to fill rectangle with the default color and specified width and height.
  4. public abstract void drawOval(int x, int y, int width, int height): is used to draw oval with the specified width and height.
  5. public abstract void fillOval(int x, int y, int width, int height): is used to fill oval with the default color and specified width and height.
  6. public abstract void drawLine(int x1, int y1, int x2, int y2): is used to draw line between the points(x1, y1) and (x2, y2).
  7. public abstract boolean drawImage(Image img, int x, int y, ImageObserver observer): is used draw the specified image.
  8. public abstract void drawArc(int x, int y, int width, int height, int startAngle, int arcAngle): is used draw a circular or elliptical arc.
  9. public abstract void fillArc(int x, int y, int width, int height, int startAngle, int arcAngle): is used to fill a circular or elliptical arc.
  10. public abstract void setColor(Color c): is used to set the graphics current color to the specified color.
  11. public abstract void setFont(Font font): is used to set the graphics current font to the specified font.

Example of Graphics in applet:

 
  1. import java.applet.Applet;  
  2. import java.awt.*;  
  3.   
  4. public class GraphicsDemo extends Applet{  
  5.   
  6. public void paint(Graphics g){  
  7. g.setColor(Color.red);  
  8. g.drawString("Welcome",5050);  
  9. g.drawLine(20,30,20,300);  
  10. g.drawRect(70,100,30,30);  
  11. g.fillRect(170,100,30,30);  
  12. g.drawOval(70,200,30,30);  
  13.   
  14. g.setColor(Color.pink);  
  15. g.fillOval(170,200,30,30);  
  16. g.drawArc(90,150,30,30,30,270);  
  17. g.fillArc(270,150,30,30,0,180);  
  18.   
  19. }  
  20. }  

myapplet.html

 

 
  1. <html>  
  2. <body>  
  3. <applet code="GraphicsDemo.class" width="300" height="300">  
  4. </applet>  
  5. </body>  
  6. </html>  
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