Process To Use Java SE API In Netbeans While Creating GUI?
Mar 3, 2014I would like to use java se api names like, undo, redo, stylededitorkit, htmleditorkit in editorpane swing. So, I don't understand how to use these apis.
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Creating Application Which Detect Image And Process It?
Oct 24, 2013i want to create an application which detect an image which took from camera and to process it so that it can be verified ..for example number plate of the vehicle ..if i need to extract the numbers from the image ..
View Replies View RelatedHow To Process / Parse XML Data In Java
Jul 28, 2014I'm just starting out with learning how to process/parse XML data in Java, following online code/tutorials. I am currently only printing out "catalog."
XML File that I'm trying to read: URL...
import java.io.*;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
[code]...
Having Global Variable In Java Associated To A Process?
Aug 22, 2014Is there a way to have global variable in Java associated to a process ?
I'm coming from PL/SQL world, I'm looking for something like package variables.
How To Kill System Process From Java Code
Sep 7, 2014I need to kill or remove windows system process like cmd.exe from java code. Like removing it from end process in task mgr. I tried below code but its not removed. Is there a better way we can do this.
killing a system process from java code will create any issues?
public static void main(String[] args) throws Exception { String[] cmd = { "cmd.exe" };
Process p = Runtime.getRuntime().exec(cmd); p.destroy(); }
Java Runtime Get Result Output From Prompt / Large File - Process Will Hang
Aug 13, 2014I am using java process to start a system command in windows
Runtime r = Runtime.getRuntime();
Process pr = r.exec(cmdString);
I want to get the prompt out put from cmdString = "cmd /c type fileSmallSize"->>>> It is ok the have the content of the file when file is small.
However, for a large file java process will hang and no Exception occurred, what is the problem?
The easiest testing you can try on the logging.properties file in java.
public static String executeCmdAndReturnPromptResult(String cmdString)
throws Exception {
LOGGER.entering(CLASSNAME,
"Entering executeCmdAndReturnPromptResult()", cmdString);
String cmd = cmdString;
[Code] ....
It seemed to me that the bufferSize is limited so that I can only have it less than a default one, how to increase it?
My question now is how to increase the size of buffer in order to read a larger InputStream ?
BufferedInputStream() default size is
private static int defaultCharBufferSize = 8192;
private static int defaultExpectedLineLength = 80;
How to make it larger and working? I tried to increase the defaultCharBufferSize to 500000000 but it did not work!
Heap Dump Generated With Read-write Permissions For Java Process Owner
Apr 14, 2014I have a question regarding the permissions set for generated heap dumps.
I have some Jetty servers running on Linux (Java 6 64 bit / Java 7 64 bit) with the following Java arguments:
-XX:+HeapDumpOnOutOfMemoryError
-XX:HeapDumpPath=/opt/apps/heapdump
When there is a out-of-memory exception a heap dump is automatically generated by the JVM. But it seems that the heap dump permisions are set to read-write for owner only (600).
When I create files then they have by default read-write for owner and group/all read access (644).
$ ls -l
total 795432
-rw------- 1 bamboop bamboo 811322265 Apr 14 09:18 java_pid337.hprof
-rw-r--r-- 1 bamboop bamboo 6 Apr 14 12:57 test
Here the umask set for the server running the Java processes
$ umask
0022
Process 10000 XML Files / Verify And Insert Data Into Database - Java Heap Memory Error
Oct 12, 2013I need to process 10000 xml files and verify and insert the data into database. I am loading all the files in the file object and iterating one by one. I am getting the memory issue. How to handle this?
View Replies View RelatedHow To Disable USB Port In Netbeans (Java)
Dec 3, 2014If this is the C Programming codes for disabling the USB port:
system("reg add HKEY_LOCAL_MACHINESYSTEMCurrentControlSetSer vicesUSBSTOR /v Start /t REG_DWORD /d 4 /f");
How can I use the codes below in Java using Netbeans?
Create A Java Application In NetBeans
Mar 9, 2015Create a Java Application in NetBeans with the following two classes.
1. A Java class College
o Use the following data fields:
College Name
College City
Number of Tracks
Number of Students
Number of Faculty
Number of Staff
o Implement an empty constructor
o Implement a full constructor
o Implement Setters and Getters (Mutators and Accessors)
o Implement SetAll() method with all data members as parameters
2. Another Java class called CollegeDemo with the main() method:
o In the main():
o Read the values of the fields of 3 colleges from a text file and for
each create a College object.
Filename: colleges.txt
IT Dubai 7 200 50 20
ENG Abudhabi 4 400 60 20
SCIENCE Sharjah 3 300 40 20
First with empty constructor then uses setters.
Second with full constructor (no need to use setters).
Last one with empty constructor and SetAll() setter.
o Display the average number of students for all the 3 colleges.
o Change the value of ‘Number of Students’ in the SCIENCE College to
500, and display the average number of students again.
here my code :
public class Demo {
private String name ;
private String city;
private String cname ;
[code]....
Swing/AWT/SWT :: Java Built By Netbeans
May 2, 2015I would like a small box to be able to enter a contacts information and I started with building it thru netbeans. Now I am thinking I should start from scratch so I understand everything. What should I do? I am having trouble making the buttons at the bottom work. All I would like to be able to do is setFrameVisible(false); but I can't seem to be able to do that without loosing the whole project not just the frame I am working on.
The buttons I am referencing are the Cancel & Accept
public class pa4GUI extends javax.swing.JFrame
{
String ph;
String ln;
String fn;
String em;
String or;
[code]....
Netbeans EclipseLink And Embedded Java DB
Aug 1, 2014I'm reasonably new to Java and NetBeans.
I'm developing an SE Java application which allows the user to view a database that I've created. I've done the data binding to a JTable but don't see any data. I've read the Derby/Java DB manual and it seems that I need to put data into this Embedded database (single table). All I want to know is how to put the data in - can I copy the files from '.netbeans-derby' folder or do I have to utilise another method?
Java Netbeans - JCombobox With Two Lists
Feb 9, 2014I have two JComboBox the first contains a list of patients, the second a list of antibiotics I want to make a button when I chose an antibiotic and a patient they will be added in my database (sql server)
View Replies View RelatedNetBeans IDE - Naming Java Projects
Jun 22, 2014The naming conventions for coding Java applications are clear to me. I'm wondering what the best practices are for naming Java projects e.g. when creating a new project in NetBeans IDE or in BitBucket?
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May 10, 2014I am suppose to submit my project as a WAR file but not sure how to do it.
View Replies View RelatedHow To Load Java File Into Netbeans So Can Work With It
May 12, 2015I have a couple .java examples I want to mess with but don't know how to get them into Netbeans so I can work with them. What is the process in loading a .java into Netbeans so I can work with the code and run it in Netbeans?
View Replies View RelatedSwing/AWT/SWT :: How To Print JFrame Content Using NetBeans Java
Sep 10, 2014I am developing a program in netbeans forms. I've got to a point where I will click a jButton to print the content of either JFrame or JPanel. I am using Netbeans forms to develop the project....
View Replies View RelatedCopying Netbeans Java Code To Word With Format?
Jun 15, 2014I need to copy my neatbean code to word, (school stuff) now I know this is possible, cause I see it on internet often.
I tryed copying it to notepad++ and then to word... wont work the code will still all black.
Swing/AWT/SWT :: Update Progress Of A Process In Progress Bar - Java GUI
Nov 29, 2014In my Java SWT application, I have few methods, that take longer time to complete. These methods has to be initiate and run as response to button click. There I want to implement progress bar to show the progress/status of long run method. Long run methods are Java Processes, in which it executes some command line functionality. (ex: run ls method in Linux).
Process p = Runtime.getRuntime.exec(command)
In progress bar status is set using setSelection method which takes int as argument. How to indicate the progress of process in progress bar, because I don't have int value to pass into setSelection method of progressbar.
Send Emotions In Chat Application Built In Java Using Netbeans
Jan 26, 2014how to send emotions in a chat application built in java using netbeans ?
View Replies View RelatedHow To Load XML File Inside Of Java Class File In Netbeans Project
Feb 26, 2015try {
File configFile= new File("C: Documents and SettingsstudentMy DocumentsNetBeansProjectsCDASsrcconfig.xml ");
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(fXmlFile);
doc.getDocumentElement().normalize();
NodeList nList = doc.getElementsByTagName("config");
[Code] .....
This code is working properly but i have use path like this
File configFile= new File("srcconfig.xml");
Instead of system directory path i have to use path inside of project but i am getting an error-cannot find the specified file...
Creating A Tree In Java
Sep 9, 2014how to create a tree data structure in java.I tried with a class consisting of node field and arraylist child nodes. but it does not satisfy the requirement.the requirement is that,
root: child1,child2,child3
child1:child4,child5
child2:child6,child7
on traversing it should print all the nodes as given above.no node should have same elements as child.
Creating Rectangle In Java
Apr 16, 2015I have a problem with creating a rectangle in Java. When I create the first rectangle all is ok. But the next, is the problem.
View Replies View RelatedCreating XML File In Java
Jul 30, 2014I'm getting a DOMException, "HIERARCHY_REQUEST_ERR". I know that the problem is from the following code towards the bottom in my function, but I don't know how to deal with it. When I get rid of doc.appendChild(staff);, I get rid of the problem, but it obviously doesn't add the new entry to my root element.
Element staff = doc.createElement("Staff");
doc.appendChild(staff);
import java.io.File;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Transformer;
[Code] .....
Creating Task Manager Using Java
Dec 5, 2010I want to create a TASK MANAGER for windows OS using java. Of course i am not expecting any code snippets, that is, what are the classes to be included and moreover HOW to do it.
View Replies View RelatedCheckerBoard Won't Appear - Creating A Game In Java
Mar 8, 2015Anyway I am creating a game for my A2 coursework, most commonly known as Checkers. I have completed my code and everything works as I had planned except that the CheckerBoard itself as well as the checkerpieces do not appear to be showing.
The section of were my board should be present is just a black space. Although my board does not appear to be displaying, all of the actions I perform on it such as clicking certain section produces the planned response, and although I've checked through my code I cannot work out what I've done wrong.
CheckerBoard content = new CheckerBoard(); // Sets the CheckerBoard values into the content to be used in the next line
application.setContentPane(content); // Container holds the values together, Content pane of the CheckerBoard
application.pack(); // Use preferred size of content to set size of application.
Dimension screensize = Toolkit.getDefaultToolkit().getScreenSize();
application.setLocation( (screensize.width - application.getWidth())/2,
(screensize.height - application.getHeight())/2 );
[Code] ....
I have noticed is that within the BoardComplete(), if you change the setBackground(Color.BLACK) to WHITE, it will change the colour of the section to white, but the checkboard is still unshown.