Difference between revisions of "Graphics2D"

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(drawOval)
(fillRect)
Line 16: Line 16:
 
   g.setColor(Color.black);
 
   g.setColor(Color.black);
 
   g.drawRect(10,10,30,30);
 
   g.drawRect(10,10,30,30);
 +
}</prog>
 +
</question>
 +
 +
==fillOval==
 +
<question width='100' height='100' className='Raster' imgOut='flag.png'>
 +
The method '''fillOval(x,y,w,h)''' takes four parameters x,y (for the top left corner of the rectangle that contains the oval) and w,h for the width and height of the oval to be filled.
 +
<prog lang='java'>static void drawFlag(Graphics2D g){
 +
  g.setColor(Color.black);
 +
  g.fillOval(10,10,30,60);
 
}</prog>
 
}</prog>
 
</question>
 
</question>

Revision as of 13:34, 7 September 2008

The Graphics2D class is part of the Java library. It is documented at http://java.sun.com/j2se/1.5.0/docs/api/java/awt/Graphics2D.html

drawOval

The method drawOval(x,y,w,h) takes four parameters x,y (for the top left corner of the rectangle that contains the oval) and w,h for the width and height of the oval to be drawn. The kind of line is determined by you most recent setLine statement.


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drawRect

The method drawRect(x,y,w,h) takes four parameters x,y (for the top left corner) and w,h for the width and height of the rectangle to be drawn. The kind of line is determined by you most recent setLine statement.


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fillOval

The method fillOval(x,y,w,h) takes four parameters x,y (for the top left corner of the rectangle that contains the oval) and w,h for the width and height of the oval to be filled.


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fillRect

The method fillRect(x,y,w,h) takes four parameters x,y (for the top left corner) and w,h for the width and height of the rectangle to be filled.


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setColor using predefined colors

The method setColor determines the color used for following operation (such as fillRect). setColor takes a color as a parameter.

Named Colors You can use one of the standard colors such as Color.red. Other colors include: black blue cyan darkGray gray green lightGray magenta orange pink red white yellow.


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setColor using custom colors

Custom Colors You can use a custom color using the constructor new Color(255,0,128) which uses red, green and blue components 255, 0, 128. Each component can be a value from 0 to 255.


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