vb.net generate qr barcode J2ME: The Complete Reference in Java

Making PDF417 in Java J2ME: The Complete Reference

J2ME: The Complete Reference
PDF-417 2d Barcode Encoder In Java
Using Barcode generator for Java Control to generate, create PDF417 image in Java applications.
PDF417 Recognizer In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
WriteReadMixedDataTypesExample MicroEdition-Configuration: CLDC-10 MicroEdition-Profile: MIDP-10 MIDlet-JAR-SIZE: 100
Bar Code Printer In Java
Using Barcode printer for Java Control to generate, create barcode image in Java applications.
Reading Bar Code In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
Record Enumeration
PDF 417 Encoder In C#
Using Barcode encoder for .NET Control to generate, create PDF-417 2d barcode image in VS .NET applications.
Printing PDF 417 In Visual Studio .NET
Using Barcode generator for ASP.NET Control to generate, create PDF417 image in ASP.NET applications.
A record store is more like a flat file than a database management system and therefore lacks many sophisticated features that you find in a database management system For example, you cannot send an SQL query to a record store, nor can you ask a record store to search for keywords or sort records, which is commonly performed by a database management system However, you can still perform searches and sorts of records in a record store by using the RecordEnumeration interface An Enumeration provides a way to traverse data elements The Enumeration object manages how data is retrieved from the record store Changes to the record store are reflected when the record store s content is iterated You obtain a record enumeration by calling the enumerateRecords() method The enumerateRecords() method requires three parameters The first is the record filter used to exclude records returned from the record store The second is reference to the record comparator, which is a method used to compare records returned from the record store The last parameter is a boolean value indicating whether or not the enumeration is automatically updated when changes are made to the underlying record store The enumerateRecords() method returns a RecordEnumeration, as illustrated in the following code segment There isn t any filter or comparator method, and the record enumeration is not automatically updated when a change is made to the record store You ll see how to create a record enumeration that uses a filter and comparator method later in this chapter
Generating PDF 417 In .NET
Using Barcode creator for VS .NET Control to generate, create PDF-417 2d barcode image in .NET framework applications.
Drawing PDF 417 In VB.NET
Using Barcode drawer for Visual Studio .NET Control to generate, create PDF417 image in .NET framework applications.
RecordEnumeration recordEnumeration = recordstoreenumerateRecords(null, null, false);
Painting GS1 DataBar In Java
Using Barcode maker for Java Control to generate, create GS1 DataBar Stacked image in Java applications.
Drawing EAN / UCC - 13 In Java
Using Barcode encoder for Java Control to generate, create European Article Number 13 image in Java applications.
You then use methods of the RecordEnumeration (see Quick Reference Guide at the end of this chapter) to interact with records in the RecordEnumeration One of the most common interactions that you ll have with a RecordEnumeration is to step through each record of the RecordEnumeration The following code segment illustrates how this is done The hasNextElement() method is called to evaluate whether or not there is another record in the RecordEnumeration A boolean true is returned if another record exists; otherwise, a boolean false is returned
GS1-128 Printer In Java
Using Barcode printer for Java Control to generate, create EAN 128 image in Java applications.
UPCA Printer In Java
Using Barcode printer for Java Control to generate, create UPC-A image in Java applications.
8:
Drawing EAN-8 Supplement 2 Add-On In Java
Using Barcode maker for Java Control to generate, create EAN 8 image in Java applications.
Read Code128 In .NET Framework
Using Barcode decoder for VS .NET Control to read, scan read, scan image in VS .NET applications.
Record Management System
Print GS1 - 12 In Visual Studio .NET
Using Barcode maker for ASP.NET Control to generate, create UPC Symbol image in ASP.NET applications.
Printing UPC Symbol In None
Using Barcode creation for Office Word Control to generate, create UPCA image in Word applications.
while ( recordEnumerationhasNextElement()) { //do something }
UPC-A Supplement 2 Generator In Java
Using Barcode creation for Eclipse BIRT Control to generate, create GTIN - 12 image in BIRT reports applications.
Recognizing GS1 128 In Visual C#.NET
Using Barcode decoder for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
You can retrieve a record from the RecordEnumeration using one of two techniques The first technique is designed to read a record that has a single data type such as a string from the RecordEnumeration The other technique reads a record that has a compound data type The next code segment shows how to read a record that has a single data type, which in this case is a string You ll learn about reading records having compound data types later in this chapter This code segment calls the nextRecord() method, which returns a copy of the next record in the RecordEnumeration The record is passed to the constructor of the String class and is assigned to the string variable You would place this code segment within a conditional loop, such as the while loop shown previously in this section, to be assured that a record exists in the RecordEnumeration before attempting to copy the record to the string Of course, you probably would use an array of strings if a while loop is used; otherwise the MIDlet would be overwriting the previous record assigned to the string, unless you plan to process the record within the while loop
Decode Bar Code In VB.NET
Using Barcode Control SDK for Visual Studio .NET Control to generate, create, read, scan barcode image in .NET applications.
Encoding Barcode In None
Using Barcode creator for Software Control to generate, create bar code image in Software applications.
String string = new String(recordEnumerationnextRecord());
J2ME DATA MANAGEMENT
You can move forward or back within the RecordEnumeration by calling either the nextRecord() method, which moves to the next record, or the previousRecord() method, which moves back one record Both the nextRecord() method and the previousRecord() method return a byte array containing a copy of the record You are positioned at the top of the RecordEnumeration when the RecordEnumeration is created The top is not the first record; you must call the nextRecord() method to move to the first record You can move to the last record by calling the previousRecord() method while at the top of the RecordEnumeration You can return to the top of the RecordEnumeration by calling the reset() method Before moving in either direction through the RecordEnumeration, you should always determine whether there are records in the RecordEnumeration, and if so, whether there is a next record or previous record Call the numRecords() method to determine the number of records there are in the RecordEnumeration The numRecords() method returns an integer representing the total number of records If the return value is greater than zero, then evaluate whether there is a next record or previous record depending on the desired direction The hasNextElement() method is called to determine whether there is a next record, which
Copyright © OnBarcode.com . All rights reserved.