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Canvas class

                        Canvas class

 

Canvas class :

The Canvas class is used for creating the small drawing object , which can we used for coloring , drawing graphs, lines etc..


The constructor of the Canvas class is ,


            Canvas()

It is the default constructor of the Canvas class.

Method :

a)  setSize() :This method is used to specify the size of the applet.

The general form is ,

            setSize(int x,int y)

where ,

            x and y specify the width and height of the canvas in pixels

b) setBackground() : This method is used to set the Background color of the canvas.

The general form is ,

            setBackground(Color ob)

            where,

                        ob is the object of the Color class

Description of the Color class

-------------------------------------------
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Color class is used to define the color of an item to be drawn on the applet

The constructors of the Color class are ,

a)         Color(int r,int g,int b)

            The integer arguments r,g,b specify the color values for the three primary colors and the result color will be the color obtained by mixing the three values. The range for each argument is 0 to 255

b) Color (int rgb)

The single rgb will specify the color value here


c) Color(float r,float g,float b)

The floating-point  arguments r,g,b specify the color values for the three primary colors and the result color will be the color obtained by mixing the three values. The range for each argument is 0.0f to 1.0f.

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