Manage your account and access personalized content. Sign up for an Oracle Account. Access your cloud dashboard, manage orders, and more. Sign up for a free trial. End users expect to be able to print to printers attached to local machines or to the network itself.
The applets and applications they use may run in concert with a browser or directly on top of an operating system itself. In all cases, users expect to be able to print from their desktop to any printers on their network.
The Java environment must meet this need by providing a rich set of printing interfaces and functionality, including:. The original JDK 1. The release of the 1. JDK 1.
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Note that this does not necessarily require that the printer be connected physically to the client machine, but rather that the Java client uses facilities provided by the platform operating system to use a printer.
Also note that some Java platforms may have no printer accessible, directly or indirectly. To print, a client initiates a print job by obtaining a new instance of PrintJob. The PrintJob class will create for you an instance of a concrete subclass of Graphics, which implements all the usual rendering calls for text, graphics, and images.
This subclass differs from the normal Graphics subclasses in that rendering is done not on the screen, but on a printer. In practice, the subclass either builds a document file, such as PostScript, and ships it to a printer, or it passes the responsibility on to the operating system, e. You indicate the end of each page by calling dispose on the Graphics subclass, and obtain a new graphics instance from PrintJob for the next page.
Java Printing SDK 1. Reference: SDK 1. The SDK 1. The Java printing system uses a callback model in which the printing system controls when pages are printed; the application provides information about the document to be printed, and the printing system asks the application to render each page as it needs them.
While untraditional, the callback model fits better with the existing AWT component painting model. The printing system might request that a particular page be rendered more than once or request that pages be rendered out of order. The application must be able to generate the proper page image, no matter which page the printing system requests. In this respect, the printing system is similar to the window toolkit, which can request components to repaint at any time, in any order.
The callback printing model is also more flexible than traditional application-driven printing models and supports printing on a wider range of systems and printers. For example, if a printer stacks output pages in reverse order, the printing system can ask the application to generate pages in reverse order so that the final stack is in proper reading order.An application invokes the static methods of the abstract class PrintServiceLookup to locate print services that have the capabilities to satisfy the application's print request.
For example, to print a double-sided document, the application first needs to find printers that have the double-sided printing capability. Attribute Definitions The javax. The javax. The attributes specified in javax. A DocFlavor object consists of a MIME type, which describes the format, and a document representation class name that indicates how the document is delivered to the printer or output stream.
An application uses the DocFlavor and an attribute set to find printers that can print the document type specified by the DocFlavor and have the capabilities specified by the attribute set. Creates a set of attributes. Locates a print service that can handle the print request as specified by the DocFlavor and the attribute set.
Open Source PDF Libraries in Java
Gets a print job, represented by DocPrintJobfrom the print service. Calls the print method of the print job. The following code sample demonstrates a typical use of the Java Print Service API: locating printers that can print five double-sided copies of a Postscript document on size A4 paper, creating a print job from one of the returned print services, and calling print. A4 ; aset. Usage to the contrary is incorrect coding and may result in a run time exception either immediately or at some later time.
IllegalArgumentException and NullPointerException are examples of typical and acceptable run time exceptions for such cases. Since: 1. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy. Interface Doc specifies the interface for an object that supplies one piece of print data for a Print Job.Java 8 Date and Time API with Jim Gough
This interface represents a print job that can print a specified document with a set of job attributes. Interface FlavorException is a mixin interface which a subclass of PrintException can implement to report an error condition involving a doc flavor or flavors class DocFlavor.
Interface MultiDoc specifies the interface for an object that supplies more than one piece of print data for a Print Job. Obtained from a MultiDocPrintService, a MultiDocPrintJob can print a specified collection of documents as a single print job with a set of job attributes. Class DocFlavor encapsulates an object that specifies the format in which print data is supplied to a DocPrintJob.
Class DocFlavor. InputStream as the print data representation class. Reader as the print data representation class. String as the print data representation class. Implementations of this class provide lookup services for print services typically equivalent to printers of a particular type. This class is a collection of UI convenience methods which provide a graphical user dialog for browsing print services looked up through the Java Print Service API.
The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'm sure there's some nice library that does this sort of thing already for you But to just stick with the approach you're already going with, Map entrySet gives you a combined Object with the key and the value. So something like:. There is a get method in HashMap:.
Learn more. Asked 3 years, 11 months ago. Active 2 years, 7 months ago. Viewed 83k times. How to I print information from a map that has the object as the value? So far, I've got: for String keys : objectSet. I want to be able to print out the object variables too. T D Nguyen 4, 2 2 gold badges 27 27 silver badges 52 52 bronze badges. Gandolf Gandolf 1 1 gold badge 1 1 silver badge 5 5 bronze badges.
Does Map only have a keySet method? Does it have no other methods? Did you just try println map? Active Oldest Votes. So something like: for Map. If you're using java 8, there's also the new streaming approach. BeUndead BeUndead 2, 12 12 silver badges 19 19 bronze badges. This answer should have been accepted.
Poor SO etiquette! Thanks for posting. You may use Map. Entry entry : objectSet. Andrej Istomin Andrej Istomin 6 6 silver badges 14 14 bronze badges. There is a get method in HashMap: for String keys : objectSet.
I'd be careful when using this approach for time-sensitive applications because internally get method is linearly searching O n for the corresponding value. The get method internally makes a call to getNode hash keykey which uses hashing. It does a linear search only when there is a hash collision. The Overflow Blog.Are traynor amps good
Socializing with co-workers while social distancing. Podcast Programming tutorials can be a real drag. Featured on Meta.A Printable. When the client subsequently initiates printing by calling PrinterJob. It does this by calling Printable. In using the Printable interface the printing commits to image the contents of a page whenever requested by the printing system. The parameters to Printable. For correct printing behaviour, the following points should be observed: The printing system may request a page index more than once.
On each occasion equal PageFormat parameters will be supplied. The printing system will call Printable. If multiple collated copies of a document are requested, and the printer cannot natively support this, then the document may be imaged multiple times.
Printing will start each copy from the lowest print stream page index page. With the exception of re-imaging an entire document for multiple collated copies, the increasing page index order means that when page N is requested if a client needs to calculate page break position, it may safely discard any state related to pages When called by the printing system the Printable must inspect and honour the supplied PageFormat parameter as well as the page index.
The format of the page to be drawn is specified by the supplied PageFormat. The size, orientation and imageable area of the page is therefore already determined and rendering must be within this imageable area.
This is key to correct printing behaviour, and it has the implication that the client has the responsibility of tracking what content belongs on the specified page. When the Printable is obtained from a client-supplied Pageable then the client may provide different PageFormats for each page index.
Calculations of page breaks must account for this. A PrinterJob calls the Printable interface to request that a page be rendered into the context specified by graphics.
The format of the page to be drawn is specified by pageFormat. The zero based index of the requested page is specified by pageIndex. The Graphics class or subclass implements the PrinterGraphics interface to provide additional information. If the Printable object aborts the print job then it throws a PrinterException. Throws: PrinterException - thrown when the print job is terminated. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Implementations of this listener interface should be attached to a DocPrintJob to monitor the status of the printer job. These callback methods may be invoked on the thread processing the print job, or a service created notification thread. In either case the client should not perform lengthy processing in these callbacks. Also check answers to my question about printers, the Printer Job API is what are you looking for, but checking this out will also help:.
Learn more. Connecting and printing to a printer in Java Ask Question. Asked 8 years, 10 months ago. Active 1 year ago. Viewed 43k times. Is there an easy way in Java to do the following?
Connect to a printer will be a local printer and the only printer connected to the machine. Print pages that are 2 pages in 2 different printer trays. Get the current print queue count, i.Roblox arsenal vip server
I have items to print and 34 have been currently printed, the printer queue should now read Andrew Thompson k 33 33 gold badges silver badges bronze badges.
Everything works fine. Now, I would like to be able to indicate that I want to print 2 pages per sheet. How can I do that? This content has been marked as final.
Show 11 replies. Are you talking about duplex printing or do want to print two logical pages upon one side of the paper?
The first is really a printer feature and I don't think you can do much about it, for the second, well, have your printables scale down and translate the printed content accordingly. Thanks for your answer, il will check right now the URLs you indicated. I want to be abble to print 2 pages on the front and back of a sheet paper So you want duplex printing.
Ok, in theory i found my solution, but it is not working. I want to print 1 page in each side of a sheet.Falcon captions
Here is the code I wrote to test it. The document is printed but with one page in each sheet instead of to be printed of both sides. How can I solve the problem? Thanks import java. FileInputStream; import javax.Sprite resizer
Doc; import javax. DocFlavor; import javax. DocPrintJob; import javax.Questions based on ethics and values
PrintService; import javax. PrintServiceLookup; import javax. SimpleDoc; import javax.Go To gnujpdf. Go To JFreeReport.
Go To JPedal.
Go To PDFjet. Go To ICEpdf. Recent Projects Contact Us. The iText classes are very useful for people who need to generate read-only, platform independent documents containing text, lists, tables and images. Go To iText gnujpdf gnujpdf is a Java package gnu. It provides a simple API to create pdf files and print using subclasses of java.
Graphics and java. The PDF classes write to an OutputStream in pdf format instead of a typical Graphics object, but the method calls are the same as they would be in any Applet or Application drawing to a canvas.
This project will allow access to all of the components in a PDF document. More PDF manipulation features will be added as the project matures. This ships with a utility to take a PDF document and output a text file.
It is possible to simply hand off a swing TableModel to JFreeReport and get a paginated pdf as a result. Font information and metadata can also be extracted. Java is a trademark or registered trademark of Sun Microsystems, Inc. This site is independent of Sun Microsystems, Inc.
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Java reporting tool for formatting PDF reports. JPedal is an application for viewing and printing of pdf files. Typically this means drawing into a Swing panel, but it could also draw to other Graphics2D implementations.
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