Help with java swing
Hi people!i need some help
Im a new user for java programming language.Well im programming an application using java swing libraries. I have some problems trying to accesing variables from those swing Jpanels. Ill make it clear....
Im using Netbeans...
I have a class for the window (a JFrame) including 2 Jtextfields and 2 Jlabels
import .......
public class myclass extends javax.swing.JFrame{
public double gp;
public double gv;
public G() {
initComponents();
gpnom=this.gpnom;
gvnom=this.gvnom;
private void TXFgpnom(java.awt.event.ActionEvent evt) { //TXField
gpnom= Double.parseDouble(TXFgpnom.getText());
gvnom= Double.parseDouble(TXFgvnom.getText());
.......//theres a lot of more code .for listeners..next...
Now ive created a new file (a new class)in the same package ,but i cant access public variables from swing class
//the next class was created in a new file
public class hi () {
JPanel prin =(JPanel) new myclass().getContentPane(); //ok
double number=gpnom // error variable not found
When i try to get the value of "number" ...i always get "ERROR" And the class for that textfield was public..i think...
HOw can i use variables from that Jpanel?
Id appreciate an answer...
thanx for your help!
Paco
In future Swing related questions should be posted in the Swing forum and camickr will be more likely to answer if you have used code tags to properly format your code.
Luckily this problem does not seem to be Swing related in the least because the public variables you have in your other class are named gp and gv and further when you access public variables (or properties) of a class you must access them by an instance of that class. Which you don't appear to be doing either.
Similar Messages
-
Problem with java swing button and loop
Problem with java swing button and loop
I�m using VAJ 4.0. and I�m doing normal GUI application. I have next problem.
I have in the same class two jswing buttons named start (ivjGStart) and stop (ivjGStop) and private static int field named Status where initial value is 0. This buttons should work something like this:
When I click on start button it must do next:
Start button must set disenabled and Stop button must set enabled and selected. Field status is set to 1, because this is a condition in next procedure in some loop. And then procedure named IzvajajNeprekinjeno() is invoked.
And when I click on stop button it must do next:
Start button must set enabled and selected and Stop button must set disenabled.
Field status is set to 0.
This works everything fine without loop �do .. while� inside the procedure IzvajajNeprekinjeno(). But when used this loop the start button all the time stay (like) pressed. And this means that a can�t stop my loop.
There is java code, so you can get better picture:
/** start button */
public void gStart_ActionEvents() {
try {
ivjGStart.setEnabled(false);
ivjGStop.setEnabled(true);
ivjGStop.setSelected(true);
getJTextPane1().setText("Program is running ...");
Status = 1;
} catch (Exception e) {}
/** stop button */
public void gStop_ActionEvents() {
try {
ivjGStart.setEnabled(true);
ivjGStart.setSelected(true);
ivjGStop.setEnabled(false);
getJTextPane1().setText("Program is NOT running ...");
Status = 0;
} catch (Exception e) {
/** procedure IzvajajNeprekinjeno() */
public void IzvajajNeprekinjeno() { //RunLoop
try {
int zamik = 2000; //delay
do {
Thread.sleep(zamik);
PreberiDat(); //procedure
} while (Status == 1);
} catch (Exception e) {
So, I'm asking what I have to do, that start button will not all the time stay pressed? Or some other aspect of solving this problem.
Any help will be appreciated.
Best regards,
TomiThis is a multi thread problem. When you start the gui, it is running in one thread. Lets call that GUI_Thread so we know what we are talking about.
Since java is task-based this will happen if you do like this:
1. Button "Start" is pressed. Thread running: GUI_Thread
2. Event gStart_ActionEvents() called. Thread running: GUI_Thread
3. Method IzvajajNeprekinjeno() called. Thread running: GUI_Thread
4. Sleep in method IzvajajNeprekinjeno() on thread GUI_Thread
5. Call PreberiDat(). Thread running: GUI_Thread
6. Check status. If == 1, go tho 4. Thread running: GUI_Thread.
Since the method IzvajajNeprekinjeno() (what does that mean?) and the GUI is running in the same thread and the event that the Start button has thrown isn't done yet, the program will go on in the IzvajajNeprekinjeno() method forever and never let you press the Stop-button.
What you have to do is do put either the GUI in a thread of its own or start a new thread that will do the task of the IzvajajNeprekinjeno() method.
http://java.sun.com/docs/books/tutorial/uiswing/index.html
This tutorial explains how to build a multi threaded gui.
/Lime -
Reg: Embedding Firefox with Java Swing
Sir,
The thing is We all know that Mozilla Firefox is open source.
How to embed the mozilla firefox with Java Swing or java AWT Frame.
Could me suggest me the ways to do it, the code and also the concept behind it?
I put the same question in forum but i didnot get any response.and i also googled a lot,but none was help ful
Could u please help us Sir?
Thanks..you can use webrenderer or jxbrowser library...to embed web browser in your swing application.
otherwise Use OLE with java to embed IE in your swing application.... -
How to realize them with Java Swing?
1.I want to realize the function - Save, which is similar with "save" in windows notepad - after clicking "save", a dialog box is poped up, then i can input the filename and save it. Is there any ready class like JFileChooser in Java Swing?
2.I want to set Font and color in the text area. I can do it now. But I must set the font and color b4 input the words. How can I do it like Windows Word - I just input my words, then I highlight them and select the font and colour....all highlighted words r change....can I don it with Java swing and how?
Thanks..1.I want to realize the function - Save, which is
similar with "save" in windows notepad - after
clicking "save", a dialog box is poped up, then i can
input the filename and save it. Is there any ready
class like JFileChooser in Java Swing?JFileChooser is a Swing based dialog, use it for your problem.
>
2.I want to set Font and color in the text area. I can
do it now. But I must set the font and color b4 input
the words. How can I do it like Windows Word - I just
input my words, then I highlight them and select the
font and colour....all highlighted words r
change....can I don it with Java swing and how?
Thanks..I am currently working this, try the ElementIterator w/ the Document that your inputing, as you iterate throught the nodes, you modify the attribute sets there.
Hope this helps.
> -
PI File adapter has a processing option u2018Empty-Message Handlingu2019 to ignore or Write Empty Files. In case there is no data created after mapping on target side then this option determines whether to write an empty file or not. But there is a catch to this option when it comes to using it with File Content Conversion which is described in SAP Note u2018821267u2019. It states following:
I configure the receiver channel with File content conversion mode and I set the 'Empty Message Handling' option to ignore. Input payload to the receiver channel is generated out of mapping and it does not have any record sets. However, this payload has a root element. Why does file receiver create empty output file with zero byte size in the target directory? Example of such a payload generated from mapping is as follows:
<?xml version="1.0" encoding="UTF-8"?>
<ns1:test xmlns:ns1="http://abcd.com/ab"></ns1:test>
solution :
If the message payload is empty (i.e., zero bytes in size), then File adapter's empty message handling feature does NOT write files into the target directory. On the other hand, if the payload is a valid XML document (as shown in example) that is generated from mapping with just a root element in it, the File Adapter does not treat it as an empty message and accordingly it writes to the target directory. To achieve your objective of not writing files (that have just a single root element) into the target directory, following could be done:
Using a Java or ABAP Mapping in order to restrict the creation of node itself during mapping. (This cannot be achieved via Message Mapping)
Using standard adapter modules to do content conversion first and then write file.
can someone help with java mapping that can be used in this case?Hi,
You have not mentioned the version of PI you are working in. In case you are working with PI 7.1 or above then here is the java mapping code you need to add after message mapping in the same interface mapping
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import com.sap.aii.mapping.api.AbstractTransformation;
import com.sap.aii.mapping.api.StreamTransformationException;
import com.sap.aii.mapping.api.TransformationInput;
import com.sap.aii.mapping.api.TransformationOutput;
public class RemoveRootNode extends AbstractTransformation{
public void execute(InputStream in, OutputStream out)
throws StreamTransformationException {
// TODO Auto-generated method stub
try
DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
DocumentBuilder builderel=factory.newDocumentBuilder();
/*input document in form of XML*/
Document docIn=builderel.parse(in);
/*document after parsing*/
Document docOut=builderel.newDocument();
TransformerFactory tf=TransformerFactory.newInstance();
Transformer transform=tf.newTransformer();
if(docIn.getDocumentElement().hasChildNodes())
docOut.appendChild(docOut.importNode(docIn.getDocumentElement(),true));
transform.transform(new DOMSource(docOut), new StreamResult(out));
else
out.write(null);
catch(Exception e)
public void setParameter(Map arg0) {
// TODO Auto-generated method stub
public static void main(String[] args) {
// TODO Auto-generated method stub
try{
RemoveRootNode genFormat=new RemoveRootNode();
FileInputStream in=new FileInputStream("C:\\apps\\sdn\\rootNode.xml");
FileOutputStream out=new FileOutputStream("C:\\apps\\sdn\\rootNode1.xml");
genFormat.execute(in,out);
catch(Exception e)
e.printStackTrace();
public void transform(TransformationInput arg0, TransformationOutput arg1)
throws StreamTransformationException {
// TODO Auto-generated method stub
this.execute(arg0.getInputPayload().getInputStream(), arg1.getOutputPayload().getOutputStream());
In case you are working in PI 7.0 you can use this code
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import com.sap.aii.mapping.api.StreamTransformation;
import com.sap.aii.mapping.api.StreamTransformationException;
public class RemoveRootNode implements StreamTransformation{
public void execute(InputStream in, OutputStream out)
throws StreamTransformationException {
// TODO Auto-generated method stub
try
DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
DocumentBuilder builderel=factory.newDocumentBuilder();
/*input document in form of XML*/
Document docIn=builderel.parse(in);
/*document after parsing*/
Document docOut=builderel.newDocument();
TransformerFactory tf=TransformerFactory.newInstance();
Transformer transform=tf.newTransformer();
if(docIn.getDocumentElement().hasChildNodes())
docOut.appendChild(docOut.importNode(docIn.getDocumentElement(),true));
transform.transform(new DOMSource(docOut), new StreamResult(out));
else
out.write(null);
catch(Exception e)
public void setParameter(Map arg0) {
// TODO Auto-generated method stub
public static void main(String[] args) {
// TODO Auto-generated method stub
try{
RemoveRootNode genFormat=new RemoveRootNode();
FileInputStream in=new FileInputStream("C:\\apps\\sdn\\rootNode.xml");
FileOutputStream out=new FileOutputStream("C:\\apps\\sdn\\rootNode1.xml");
genFormat.execute(in,out);
catch(Exception e)
e.printStackTrace();
The code for PI 7.0 should also work for PI 7.1 provided you use the right jar files for compilation, but vice-versa is not true.
Could you please let us know if this code was useful to you or not?
Regards
Anupam
Edited by: anupamsap on Dec 15, 2011 9:43 AM -
In program written with Java Swing, I can't input Chinese
In program written with Java Swing, I can't input Chinese.
But if I change my language first, then change the input method tu U.S, open the Java Swing application, finally I can input Chinese. I want to know how to fix this bug.
My OS is Mac OS X 10.6.8.
At the JDK version 1.6.0_29, I can input Chinese friendly in Java Swing applications. But after 1.6.0_31, I can't do it anymore. The input methods can input Chinese in other non Java Swing applications so the problem must create by JDK or JRE's Swing part. What's the different between 1.6.0_29's Swing and 1.6.0_31's ? Why ? I heard that Java Swing apps not support Chinese input methods seens 2009... Why haven't fix these yet?Chazza wrote:
Perhaps you need to change your keyboard layout in Xorg?
https://wiki.archlinux.org/index.php/Ke … ard_layout
Thanks for your answer!
I have tried to change the keyboard layout from "en" to "cn", but it is still not work.
The input method coin on the righttop is right when I change the method.But it still output english even I use ibus-pinyin.There is not a box for my choosing chinese words.
Last edited by Dilingg (2015-05-15 16:18:43) -
Need help for connecting Ms Acces with java Swing in Mac OS
Hi all,
i need to connect to Ms Access in MAc os through my java swing program.
Is it possible for accessing Ms access through dsn in Mac OS.
If Possible which driver shall i use for Establishing Connection with MS Access in Mac OS.
Suggestion is needed urgently.
Can anybody help me out regarding this..
Thanks in advance.
Regards,
sreandif I don't find a better solution I'll try your 2nd option but what do you mean by "combo" update?
My understanding is to simply insert the OS 10.5 installation CD, reinstall the OS and the just keep updating it via the OS SSoftware update panel and stop untill I see the scary Java 8 update. Is that what you meant?
While you can do it that way, the combo update picks up operating system updates through a collection of releases. When dealing with operating system upgrades, I've found using the combo updates to be more reliable than Software Update, as sometimes Software Update doesn't apply updates correctly, and weird things can happen. Doesn't happen often though, thankfully.
So the OS X 10.5.5 Combo update contains all updates between 10.5.0 and 10.5. The 10.5.8 combo update contains the updates from 10.5 thru 10.8. Here are the updates:
10.5 combo update: http://support.apple.com/kb/DL692
10.8 combo update: http://support.apple.com/kb/DL866
If you go down the combo path, repair permissions before and after doing each update. Then do Software Update for any other non-OS X updates, and don't apply the Java Update 8. -
Hi everybody,
I have a simple Java application that has a JFrame containing a TextField displaying some text inside it. I am using the NetBeans IDE. I am trying to Enable Java Web start for this application. The steps I have taken upto now are:
1. Right click on Project, Java Web Start -> Enable Java Web Start. This created the jnlp file.
2. In the Resources section, I added the jar file for swing. ( I am not sure if I have to add the path for jnlp.jar etc, or are these found automatically?)
3. Right click on Project, Java Web Start -> Deploy with Java Web Start. This launches the browser with the Click me link, but on clicking this link, I get the following error.
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Wrapper cannot find servlet class jnlp.sample.servlet.JnlpDownloadServlet or a class it depends on
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
java.lang.Thread.run(Thread.java:534)
root cause
java.lang.ClassNotFoundException: jnlp.sample.servlet.JnlpDownloadServlet
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1332)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1181)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
java.lang.Thread.run(Thread.java:534)I have all the jnlp files in my jdk directory, and I am not sure why it can't find it. Is there something I am missing?
Thanks
GeorgeI am not sure what it has to do with servlets, I just followed a tutorial on using Netbeans with Java Web Start, and did only the steps as mentioned in my first post. And ended up with the error.
Anyways, I added the jnlp jar files(jnlp.jar, jnlp-servlet.jar, jardiff.jar) in the WEB-INF/lib directory. And it seems to deploying it now. I can get my application to load on clicking on the "Click me" link. But the controls on my application don't seem to be working.
Also, when I try to Right click on my project -> Java Web Start -> Run with Java Web Start, I get the following error message,
javaws-run: C:\Documents and Settings\Lux\Visualization\nbproject\build-jaws-impl.xml:36: Execute failed: java.io.IOException: CreateProcess: C:\j2sdk1.4.2_13\bin\javaws "file:///C:/Documents and Settings/Lux/Visualization/Visualization.jnlp" error=2
BUILD FAILED (total time: 0 seconds)
Any help appreciated.
Thanks.
George -
This is my first post here, seeking some help with my java homework. I am required to create a program to write out a receipt for a pizza company: name of company, total number of pizzas, costs (including tax etc), and print out the receipt after taking an order from the customer.
This is a beginner's java class and my book isn't very good at explaining (mainly because it says "will be discussed in ch 14" when we're in ch 1-3 and it's an essential part of the program).
But anyways, if anyone is up right now, would be helpful for some help. I have a general idea of what I wanna do, but the program so far is very messy and incomplete and having trouble getting it to look nice and proper.well there were two ways of doing this, im only 2 weeks new in java so bear with me.....I was gonna set 3 classes, one appclass, one order form, and one receipt. I was told you can combine the order and receipt in 1 class, but I thought doing 3 woudl be better to help me learn more...anyways, I haven't worked on the appclass yet, but for the order I have a very messy set of codes. I know that it's wrong but it's a start, im looking for any input cause the book does not explain very much.
For the order class, I will be doing showinputdialog boxes for how many pizzas, the sizes, and the toppings. Here is what I have so far ( i know it is VERY messy and disorganized but I am a bit lost in where I should go next):
* @author AlexNguyen
* To take the order with number of pizzas and toppings
package project2;
import javax.swing.JOptionPane;
public class Order {
public int NumberOfPizzas;
public char Pepperoni;
public char Sausage;
public char Cheese;
public Order(int n) {
NumberOfPizzas = n;
JOptionPane.showInputDialog("Enter Number of Pizzas"));
String ptype; {
public void start();
public void takeOrder();
public void writeReceipt();
public void takeOrder();
ptype = Topping
public String selectPizza(char P, char S, char C) {
Pepperoni = P;
Sausage = S;
Cheese = C;
public void numPizza(int numberOfPizzas) {
num = numberOfPizzas;
JOptionPane.showInputDialog("Topping for Pizza?");
JOptionPane.showInputDialog("Pizza Size?");
JOptionPane.showInputDialog("Number of Pizzas?");
} -
Help with JAVA StringObject - & assign user input; StringMethod
Hi Everyone! I need help with this Java Program, I need to write a program, single class, & file. That will prompt the user to enter a word. The output will be separted by hypens and do this until the user enters exit. I think this is done by using a string variable. Then use the length of the word to setup a loop to print each letter out with hypens. (example c-a-t)
1. I think I should store the word like this: Word.Method(). Not sure of this the API was confusing for me because I wasn't sure of what to do.
2. A string method to find out how many letters are in the user's word in order to setup a loop to print each letter out. I think I can use a While loop to accomplish this?
3. A string method to access each letter in a string object individually in order to print individual letters to the screen with those hypens. This is really confusing for me? Can this be accomplished in the While loop? or do I declare variables in the main method.
Any examples you can refer me to would be greatly appreciated. ThanksGetting user input:
This may look strange to a newbie but there's nothing much you can do since you wanted a single class file:import java.io.*
public class InputTest {
public static void main(String[] args) {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Hi! Please type a word and press enter.");
String lineReadFromUser = in.readLine();
System.out.println("You typed " + lineReadFromUser);
}You can get the lenght of a String using the length() method. Example: int len = "Foobar".length();
You can get the individual characters of a String with the charAt() method. Example: char firstCharOfString = string.charAt(0);
(remember that the argument must be from 0 to length-1)
You can access the documentation of all classes, including java.lang.String, at http://java.sun.com/j2se/1.3/docs/api/index.html You can also download the docs. -
I need some help with some Java assignments. I'm new to it, and I am having some problems.
People will help you - if you help them first by stating your problem. If it was a generic question wanting to know wether anyone will help you at all - the answer is yes, they would - you have to put your work in first however.
Ironluca -
Hi I got this error and i don't know what it means or how to fix it
if you understand it please help
Bad installation. Error invoking java vm(execv)
C:\program Files\java\ire1.5.0_10\bin\javaw.exe
I got this error when i went to add and remove programs in winXP
and highlighted a program called Goban3 and clicked on change\remove
http://www.gokgs.com/
goban3 is sign on link to KGS
if you check the site KGS you can see some java related items that have to be done i use this sights for years without problems
but now im having problems with java
thanks for serious reply
Message was edited by: r
revestThat looks alot like this.
-
Hello Everybody
I Want To Make an Alarm Application With Java Like
The User Enters Alarm Time as 3.15.4 AM or something like that
which class shall i use?
if there's any demos that would be great.
Thank YouAnother Question
In The following Code Sir I Want The User to input The Time In The Format h/m/s/am.pm
And After That Specific Time Passes an action happens
How to Do that?
import java.awt.*;
import javax.swing.*;
import java.text.DateFormat;
import java.util.Date;
public class Alarm extends Thread {
public static void main(String[] args) {
final JLabel label=new JLabel();
JButton button=new JButton("Set Alarm");
JTextArea tarea=new JTextArea("Enter Task Here",4,21);
JScrollPane scroll=new JScrollPane(tarea);
JTextField text1=new JTextField("hh",2);
JTextField text2=new JTextField("mm",2);
JTextField text3=new JTextField("ss",2);
JTextField text4=new JTextField("AM/PM",4);
text1.setToolTipText("Hours From 1 To 12");
text2.setToolTipText("Minutes From 0 To 60");
text3.setToolTipText("Seconds From 0 To 60");
JFrame frame=new JFrame("JAlarm");
frame.setSize(270,180);
JPanel panel1=new JPanel();
panel1.add(label);
panel1.add(scroll);
Thread t = new Thread() {
public void run() {
for(;;){
Date now = new Date();
label.setText(DateFormat.getTimeInstance().format(now));
t.start();
JPanel panel2=new JPanel();
panel2.add(button);
panel2.add(text1);
panel2.add(text2);
panel2.add(text3);
panel2.add(text4);
frame.setLayout(new BorderLayout());
frame.add(panel1,BorderLayout.NORTH);
frame.add(panel2,BorderLayout.CENTER);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
} -
Help with java digital signing code
hello people.
can anybody help me?
i have find a java code to resolve my problem with sending pay in soap envelope with digital signature and attached certificate. i compiled it with jdk jdk1.6.0_37. and it works.
i need it to work in built-in jvm in oracle 9i. in oracle 9i jvm release is 1.3.1. Java code does not work there. there is an error
class import com.sun.org.apache.xerces.internal.impl.dv.util.Base64 not found in import.
i did not find this class in network.
can anybody help with rewriting it for jvm 1.3.1?
thanks in advance.
code below:
import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;
import java.io.*;
import java.security.Key;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.Signature;
import java.security.cert.Certificate;
public class Sign {
public static void main(String[] args) throws Exception {
// TODO code application logic here
BufferedReader reader = new BufferedReader(new FileReader("c:\\cert.p12"));
StringBuilder fullText = new StringBuilder();
String line = reader.readLine();
while (line != null) {
fullText.append(line);
line = reader.readLine();
KeyStore p12 = KeyStore.getInstance("pkcs12");
p12.load(new FileInputStream("c:\\cert.p12"), "Hfrtnf$5".toCharArray());
//????????? ????????? ????, ??? ????? ????? ???????????? alias ? ??????
//Key key = p12.getKey("my kkb key", "ryba-mech".toCharArray());
Key key = (Key) p12.getKey("my kkb key", "Hfrtnf$5".toCharArray());
Certificate userCert = (Certificate) p12.getCertificate("my kkb key");
String base64Cert = new String(Base64.encode(userCert.getEncoded()));
//signing
Signature signer = Signature.getInstance("SHA1withRSA");
signer.initSign((PrivateKey) key);
signer.update(fullText.toString().getBytes());
byte[] digitalSignature = signer.sign();
String base64sign = new String(Base64.encode(digitalSignature));
String base64Xml = new String(Base64.encode(fullText.toString().getBytes()));
System.out.println("<certificate>" + base64Cert+"</certificate>");
System.out.println("<xmlBody>" + base64Xml+"</xmlBody>");
System.out.println("<signature>" + base64sign+"</signature>");
Edited by: user13622283 on 22.01.2013 22:08My first search is to see if there is an Apache commons project that provides it. Lo and behold:
http://commons.apache.org/codec/apidocs/org/apache/commons/codec/binary/Base64.html
commons-codec. -
Help with Java Printing-Custom paper sizes
Hi,
I'm trying to print documents with custom paper sizes out of java.
I can print fine when I don't try to set the MediaSize to a custom size or when I use already named constants like: "MediaSizeName.JIS_B4"
The error message I get is this:
java.lang.ClassCastException
at javax.print.attribute.AttributeSetUtilities.verifyAttributeValue(Unknown Source)
at javax.print.attribute.HashAttributeSet.add(Unknown Source)
at hello.Printy.printDocument(Printy.java:103)
at hello.Printy.main(Printy.java:135)
The offending line(103) looks like this:
pras.add(new MediaSize(1,10,MediaSize.INCH ));The function that its from looks like this:
public void printDocument()
try
System.out.println("input file name is");
System.out.println(inputFileName);
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
PrintService printService[] = PrintServiceLookup.lookupPrintServices(flavor, pras);
PrintService defaultService = PrintServiceLookup.lookupDefaultPrintService();
PrintService printPrintService = null;
// didn't work pras.add(new MediaSize(1,10,MediaSize.INCH) );
PrintService service = ServiceUI.printDialog(null, 200, 200,printService, defaultService, flavor, pras);
if (service != null)
System.out.println("There is a service aunty-may!!");
DocPrintJob job = service.createPrintJob();
FileInputStream fis = new FileInputStream(getInputFileName());
DocAttributeSet das = new HashDocAttributeSet();
//pras.add(new MediaSize((float)3.25, (float)4.75, Size2DSyntax.INCH ) );
// - works
//pras.add(MediaSizeName.JIS_B4);
pras.add(new MediaSize(1,10,MediaSize.INCH ));
//pras.add(new MediaSize(1,10,MediaSize.INCH) );
System.out.println("Doc has been set to custom size");
Doc doc = new SimpleDoc(fis, flavor, null);
job.print(doc, pras);
System.out.println("any doc for you?");
catch (Exception e)
e.printStackTrace();
}Any help with this would be greatly appreciated. I'm new to java but I've programmed a bunch in c++.Hmm ... no real help, but I found this note in the API:
MediaSize is not yet used to specify media. Its current role is as a mapping for named
media (see MediaSizeName). Clients can use the mapping method
MediaSize.getMediaSizeForName(MediaSizeName) to find the physical dimensions of
the MediaSizeName instances enumerated in this API. This is useful for clients which
need this information to format & paginate printing.
Maybe you are looking for
-
Lost all my pictures in Aperture, any idea where they're hiding?
Any ideas on how to find missing pictures on my Imac in Aperture?
-
I recently updated my iphone 4s to iOs 6 and now I when I open any app it crashes and reopens
I would appreciate any help regarding this, I'm going crazy!
-
Downloaded bin files are associated with excel
I know that they should day open with application. How do I switch bin files to be opened with application instead of excel. I don't know what to select under the Open With: -> Other menu
-
Using ADM for create custom drawed items
Hi, I've started a new color selector plugin for CS3. The Win version works well. But the Mac version doesn't call the draw procs (set by Item Suite's SetDrawProc). I've create all items on the dialog box by ADM Dialog Suite (CreateItem). All the tra
-
GRC AC 5.3 Support Pack upgrade from 10 to 16.3
Hello There, Currently, one of the our client is using GRC AC 5.3 with SP10 and planning to upgrade/apply to latest SP16.3. Would appreciate your response if anyone applied / used the latest SP16.3 and what kind of issues they faced or facing with cu