How to use Graphics in Java?

[hariharan_00]

hello everyone,
I am new to the Java which I started recently. Before that I have did the C++ and HTML programming language. In C++ I have used the graphics to some extent. But now I want to use the graphics for the Java.!! So need your help..!! Please tell me how to use Graphics in Java? Help me as soon as possible.

[Solitario]

You will have to use the Graphics in Java, whenever you want to draw or color the graphics that you have created. You also need Graphics class for creating the graphics. The methods that are included in the Graphics class, can be categorized into two basic groups :

1. You can draw and fill the methods by which you are enabled to render basic shapes, text, and images.
2. The other part are the attributes setting methods, which affect how that drawing and filling appears.

[kyosang]

You can also use the Graphics in a Java Applet. For using that in Applet, you can follow the steps mentioned below :

1. First, you will have to locate the paint method created by you. Then set the parameter for a graphics class.
2. In your code part, write the statement :
   

   public void paint (Graphics g).

3. Later you will have to set up your draw line method in the graphics class. For doing this you must set the proper coordinates in sequence.
4. You will have to call the specific method for importing and drawing an images to your object. For this you will have to import java.awt.Image.

[Viensterrr]

The following information is the most important that you will have to know before doing the coding for graphics. The drawings method includes the following things :

1. drawString - This is used for drawing the Text.
   

   g.drawString("Welcome", 20, 20);

2. drawImage - This is used for drawing an images.
   

   g.drawImage(img, 
                      0, 0, width, height,
                      0, 0, imageWidth, imageHeight,
                     null);

[Katty]

If you want to fill the rectangle with the colors that you want, then you will have to use the fillRect method. This method allows you to draw a rectangle filled with the specified color. The following sample of code demonstrates the same :

...
        Rectangle2D boundsT = font.getStringBounds(tempString, frc);
        Rectangle2D boundsC = font.getStringBounds(condStr, frc);
        int wText = Math.max((int)boundsTemp.getWidth(), (int)boundsCond.getWidth());
        int hText = (int)boundsTemp.getHeight() + (int)boundsCond.getHeight();
        int rX = (size.width-wText)/2;
        int rY = (size.height-hText)/2;
        
        g.setColor(Color.LIGHT_BLUE);
        g2.fillRect(rX, rY, wText, hText);
	...