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Java UPC-A Barcodes Generator Guide

UPC-A Bar Code Generation Guide in Java class, J2EE, Jasper Reports, iReport & Eclipse BIRT
  • Easily generate UPC-A barcodes in Java applications
  • Generate high quality UPC-A images in JPEG, GIF & PNG formats
  • 100% build in Java, compatible with JDK 1.4 and later version
  • Generate UPC-A barcodes on any applications and platforms with Java virtual machine installed
  • Generate UPC-A in Jasper Reports & iReport
  • Generate UPC-A in Eclipse BIRT
  • Professional Java Barcode Generator library which enjoys customer appreciation for more than 10 years
  • Royalty-free developer license, one time purchase for lifetime use
UPC-A Barcode Introduction
UPC-A is also known as Universal Product Code version A, UPC-A Supplement 5/Five-digit Add-On, UPC-A Supplement 2/Two-digit Add-On, UPC-A+5, UPC-A+2, UPC Code, UPC Symbol, GTIN-12, GS1-12, UCC-12.
UPC-A is used for marking products which are sold at retail in the USA. The barcode identifies the manufacturer and specific product so point-of- sale cash register systems can automatically look up the price.
The UPC-A Code and the assignment of manufacturer ID numbers is controlled in the U.S.A. by the Uniform Code Council (UCC).

Sample of a UPC-A Barcode
The value to encode by UPC-A has the following structure:
  • 1 digit for Number System (0: regular UPC codes, 1: reserved, 2: random weight items marked at the store, 3: National Drug Code and National Health Related Items code, 4: no format restrictions, for in-store use on non-food items, 5: for use on coupons, 6: reserved, 7: regular UPC codes, 8: reserved, 9: reserved).
  • 5 digits for Manufacturer (Company) Code or prefix. This number is assigned by the Uniform Code Council (UCC).
  • 5 digits for Product Code which is assigned by the manufacturer.
  • 1 digit for checksum.
Add-On or Supplement code
The Add-On Symbols were designed to encode information supplementary to that in the main bar code symbol on periodicals and paperback books. The Add-On can be composed of 2 or 5 digits only.

Sample of an UPC-A Two-Digit Add-On Barcode

Sample of an UPC-A Five-Digit Add-On Barcode
UPC-A Encoding Data Scope
UPCA Barcode for Java supports:
  • 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
How to Generate UPC-A Barcode in Java Class?
The following Java code illustrates how to create a UPC-A barcode, and output to various formats.
1     Linear linear = new Linear(); 
2 linear.setType(Linear.UPCA);
3 linear.setData("01234567890");
4 linear.renderBarcode("c:/barcode.gif");

5 BufferedImage bufferedImage = linear.renderBarcode();

6 byte[] barcodeBytes = linear.renderBarcodeToBytes();

7 Graphics2D g = ...
8 Rectangle2D rectangle = ...
9 linear.renderBarcode(g, rectangle);

10 OutputStream outputStream = ...
11 linear.renderBarcode(outputStream);
  • Create a Linear barcode object (line 1)
  • Set Linear object barcode type to UPC-A (line 2)
  • Set UPC-A barcode data to encode (line 3)
  • Encode generated UPC-A barcode into gif image file (line 4)
  • Generate UPC-A and output to BufferedImage object (line 5)
  • Generate UPC-A in bitmap and output to byte[] (line 6)
  • Generate UPC-A and draw to defined area (Rectangle2D) on Graphics2D (line 7-9)
  • Generate UPC-A and output to OutputStream (line 10-11)
How to Generate UPC-A Barcode Image in Java Web Applications?
There are two methods to create UPC-A barcode images in your Java web applications.
  1. The simplest way is to stream barcode image using our buildin barcode servlet application.
    • Download the Barcode for Java Trial Package, and unzip it.
    • Under java_barcode_trial package, copy barcode folder to your java servlet container like tomcat.
    • Restart tomcat. Now you have installed successfully.
    • To test your installation, open your web browser and navigate to:
    • To create barcode image in your JSP or html page, you need pass the url to IMG tag src value. For example,
      <img src="http://YourDomain:Port/barcode/linear?Data=01234567890&Type=UPCA" />
      Using this method, it will not generate any barcode images in your server side.
  2. The second method is to generate barcode images in your server side.
    • Create a barcode image in server side,like
      Linear linear = new Linear();
      linear.renderBarcode("C:/Tools/Tomcat 5.5/webapps/YourWebApp/barcode-images/barcode.gif");
    • In your JSP or HTML page, you need use IMG tag to display generated image, like
      <img src="http://YourDomain:Port/YourWebApp/barcode-images/barcode.gif" />
How to Generate Barcode UPC-A Image in Jasper Reports, iReport, Eclipse BIRT?
Java UPC-A Barcode Property Settings
  1. Set the type property to Linear.UPCA, or Linear.UPCA_2, or Linear.UPCA_5
    Servlet URL Parameter: "Type". Value: 40 (UPCA), 41 (UPCA +2), 42 (UPCA +5). Sample: &Type=40.
  2. Set the data property with the value to encode.
    Type is String.
    Servlet URL Parameter: Data.
    • Valid Data Scope:
      • 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
    • Valid Data Format:
      • 11 digits, and DO NOT include last digit checksum character.
    • Sample: "12345678901".
  3. Set the sData property with the supplement value to encode. Type is String.
    User should only provide 2 digits for UPCA_2, and provide only 5 digits for UPCA_5.
    Servlet URL Parameter: SData.
  4. addCheckSum property is not applied here. Barcode Library will always add a check character in the last digit (modulo 10).
  5. Barcode image size settings.
    • Set property uom (Unit of Measure) for properties X, Y, leftMargin, rightMargin, topMargin and bottomMargin.
      Default is Linear.UOM_PIXEL (0). Valid values are Linear.UOM_PIXEL (0), Linear.UOM_CM (1), Linear.UOM_Inch (2).
      Servlet URL Parameter: "UOM". Value: 0 (pixel), 1 (cm), 2 (inch). Sample: &UOM=0.
    • Set the X (for barcode module width) and Y (for barcode module height) properties.
      Both types are float. Default X is 3. Y is 75.
      Servlet URL Parameter: "X", "Y". Sample: &X=3&Y=75.
    • Set the leftMargin, rightMargin, topMargin and bottomMargin properties, and types are all float.
      Default values are 0 for all 4 margin settings.
      Servlet URL Parameter: "LeftMargin", "RightMargin", "TopMargin", "BottomMargin". Sample: &LeftMargin=0.
    • Set the resolution property (Value is expressed in DPI - Dots per inch).
      Default is 72 dpi.
      Servlet URL Parameter: "Resolution". Sample: &Resolution=72.
  6. Setting up text style in barcode image.
    • Set the showText properties. If this value is true, barcode data will be displayed with the barcode.
      Default is true.
      Servlet URL Parameter: "ShowText". Value: "t" (true), "f" (false). Sample: &ShowText=t.
    • Set the textFont property. The font used to display text in barcode image.
      Default is new Font("Arial", Font.PLAIN, 11).
      Servlet URL Parameter: "TextFont". Value format: [font name]|[font style]|[font size]. Sample Values: &TextFont=Arial|Bold|12
  7. With rotate property, you can display barcode horizontally or vertically.
    Default value is 0.
    Servlet URL Parameter: "Rotate". Sample: &Rotate=0.
    Value can be:
    • 0 (Linear.ANGLE_0),
    • 1 (Linear.ANGLE_90),
    • 2 (Linear.ANGLE_180),
    • 3 (Linear.ANGLE_270).
How to Set Generated UPC-A Barcode Image Size?

All Java Barcode Types/Symbologies

Encode Linear Barcodes:
Encode Matrix Barcodes: