Barcode-Lib4J requires Java 9+

Package de.vwsoft.barcodelib4j.oned

Java Class «ImplCode128» – Generate Code 128 Barcode

java.lang.Object

de.vwsoft.barcodelib4j.oned.Barcode

de.vwsoft.barcodelib4j.oned.ImplCode128

All Implemented Interfaces:

Cloneable

Direct Known Subclasses:

ImplCode128A, ImplCode128B, ImplCode128C, ImplEAN128

public class ImplCode128
extends Barcode

Implementation of Code 128. To generate instances, please use one of the newInstance static methods in the Barcode class.

Code 128 is a widely used high-density barcode symbology that encodes all 128 ASCII characters, covering:

• Control characters (ASCII 0-31), such as NUL, SOH, STX, etc.
• Digits (0-9)
• Upper and lower case letters (A-Z, a-z)
• Space character
• Punctuation and special characters: !"#$%&'()*+,-./:;<=>?@[\]^_`{|}~

In addition, Function Codes (FNC1 to FNC4) can be used within the provided input to meet specific application requirements.

Code 128 uses an internal checksum included within the barcode symbol but not displayed in plaintext representation.

Field Summary

Fields

Modifier and Type	Field	Description
static final char	FNC1	Character constant that can be used as a marker for FNC1 in the input.
static final char	FNC2	Character constant that can be used as a marker for FNC2 in the input.
static final char	FNC3	Character constant that can be used as a marker for FNC3 in the input.
static final char	FNC4	Character constant that can be used as a marker for FNC4 in the input.

Method Summary

Modifier and Type	Method	Description
void	setContent(String content, boolean autoComplete, boolean appendOptionalChecksum)	Sets the content to be encoded in the barcode.

Methods inherited from class de.vwsoft.barcodelib4j.oned.Barcode

clone, draw, draw, draw, getAddOn, getContent, getFont, getRatio, getText, getTextOffset, isFontSizeAdjusted, isOptionalChecksumVisible, isTextOnTop, isTextVisible, newInstance, newInstance, setAddOn, setCustomText, setFont, setFontSizeAdjusted, setOptionalChecksumVisible, setRatio, setTextOffset, setTextOnTop, setTextVisible, supportsAddOn, supportsCustomText, supportsOptionalChecksum, supportsRatio, supportsTextOnTop

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

FNC1

public static final char FNC1

Character constant that can be used as a marker for FNC1 in the input.

FNC2

public static final char FNC2

Character constant that can be used as a marker for FNC2 in the input.

FNC3

public static final char FNC3

Character constant that can be used as a marker for FNC3 in the input.

FNC4

public static final char FNC4

Character constant that can be used as a marker for FNC4 in the input.

Method Details

setContent

public void setContent(String content,
 boolean autoComplete,
 boolean appendOptionalChecksum)
                throws BarcodeException

Sets the content to be encoded in the barcode.

Validates the provided content to ensure that it contains only ASCII characters, and throws a BarcodeException if it does not.

The provided content can also include Function Codes FNC1 to FNC4 for specific application needs.

Specified by:

setContent in class Barcode

Parameters:

content - the content to be encoded in the Code 128 barcode

autoComplete - has no function in this method implementation

appendOptionalChecksum - has no function, as Code 128 uses a fixed internal checksum which is not optional

Throws:

BarcodeException - if the content is empty, or contains non-ASCII characters