How to create the linear (1D) barcode in a Java class.

The following code illustrates how to create a linear (1D) barcode in a Java class

6            Linear linear = new Linear(); 
7            linear.code="123456789"; 
8            linear.checkCharacter = false; 
9            linear.barcodeType = linear.CODE39; 
10           linear.createBarcodeImage("c:/linear.gif");