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Hello. I'm trying to add a single test record (a comment item) to my MySQL database. So here are my sources of JSF2 project. - main xhtml page: [code]<h:body> <h:panelGroup id="mainBlock" layout="block"> <h:panelGroup id="header" layout="block"> <h:graphicImage value="resources/logo.jpg" style=""/> </h:panelGroup><br/> <h:panelGroup id="menu" layout="block"> <h:panelGrid columns="1" style=""> <h:outputLabel value="MENU" style=""/> <br/> <h:form> …

Hello. I'm trying to add a single test record (a comment item) to my MySQL database. So here are my sources of JSF2 project. - main xhtml page: [code]<h:body> <h:panelGroup id="mainBlock" layout="block"> <h:panelGroup id="header" layout="block"> <h:graphicImage value="resources/logo.jpg" style=""/> </h:panelGroup><br/> <h:panelGroup id="menu" layout="block"> <h:panelGrid columns="1" style=""> <h:outputLabel value="MENU" style=""/> <br/> <h:form> …

Hello! Here's the problem: After making some GUI application (NetBeans) in output directory (containing generated .jar file) also appeared a directory 'lib' with additional .jar. This jar is some extra library with classes, which path is added in manifest ("Class-Path: lib/bla.jar"). So I've used to pack my applications always intto …

Hello. I'm trying to write an application, which after pressing a key does a particular action. The thing is I need the application to receive key events even if JFrame isn't itself focused (is iconified). I've read somewhere that it cannot be done - is that true? If it is …

Hi, I am very new to Java and am using Breezy Swing. I basically need to create an array of JButtons (26 in total) and display them on a form (9 on the top row, 9 in the middle and 8 on the bottom) and I have no idea of …

HI I am working on a java application using netbeans, I face a porblem. I want to display the output of my program, on jtextarea (i have designed a jtextarea,) just I want to display the output namely the content of an array. plz can anyone help?

Hello everyone, i have been trying to complete this program on a letting agency where a user gets a choice of options 1. Add a property 2. Remove a property 3. Display all properties 4. Exit the system I have no idea what syntax to use within each case option …

How do i compare an object with null? From what i've seen right now, at execution an NullPointerException will be thrown :S For example, if I have a list: [code=java] class List { private Node data; private Lista urm; public List(Node d,Lista u) { data = d; urm = u; …

Hello, For some reason, my program prints out extra zero from my linked list Can anyone tell me why? Thank you [ICODE]public class Main { public static void main(String[] args) { IntNode my = new IntNode(5,null); LinkedList list = new LinkedList(); list.createList(0); list.addValue(1); list.addValue(23); list.addValue(3); list.addValue(4); list.print(); list.getLength(); } }[/ICODE] …

Hello. I've got simple JFrame and into that I put JPanel (object of subclass of JPanel class). I want to check, what's this panel's size from inside of this panel class, but every method (getSize, getBounds) returns [0,0]. If I call getSize method from JFrame class, then it's fine, but …

Hey need lots of help on arrays! this is the exercise... 1. Write a Java application that creates an array of int initialised with the following numbers: 1 4 9 16 17 21 25 33 37 40 and reverses the contents of the array such that the value in the …

I am trying to put together a simple inventory program for my class, but I keep running into one error that I just cannot seem to correct. Here is my code: public class DVD extends Product { // channel that the show was on private String channel; // constructor public …

[COLOR="Green"]Hello all.. I have a problem with my program in here. I am making a chatting application and i just need a final touch. This is the code snippet i make to represent my problem. First, i'd like to tell that i want to make the sending process like the …

Hi mates.. I have a small question.. I have now 3 different classes, sounds ok? this is the 1st class, called "Wire" [CODE]public class Wire { private boolean Value; public boolean isValue() { return Value; } public void setValue(boolean value) { Value = value; } }[/CODE] This is the 2nd …

I am working on a project that involves creating a Vehicle class which has 3 data fields, one of which is an instance of a class rather than a fundamental data type ([I]owner[/I] is an instance of the class [I]Person[/I]). This class has multiple constructors for the varying initial values. …

Hello. I've got such example statement: [code=Java]for( int i=0; i <= 10000; i++ ) myTextArea.setText( myTextArea.getText()+ i + "\n");[/code] What is the problem? I can't figure it out, why in every iteration of loop the text area isn't refreshing with new String added. When this loop is iterating, app freezes …

Design a class called BubbleSort that is similar to the class SelectionSort. The class BubbleSort will be used in the same way as the class SelectionSort, but it will use the bubble sort algorithm, which is [CODE=syntax] for(int i = 0; i < a.length-1; i++) if(a[i]>a[i+1]) interchange the values of …

I have a few minor problems with this program: 1. My selectionSort method - it sorted Z - A, not A - Z. 2. Since I used a string array, I'm running into problems with "operator > cannot be applied" and "incompatible types". 3. Return "search term not found" in …

Hey all! I use the folowing class in my program to draw lines. However I also need to be able to delete them. So I need to add a mouselistener to the lines but I don't know how and whereto do this.. Can anybody help me with this? Thanks!! [code] …

i am trying to code a toString() method which returns the string "Power: ON" if the power variable is equal to true and "Power: Off" if the power variable is equal to false (the power variable is the boolean type). However i dont know how to do this as the …

Hello! I'm searching and searching and can't find a solution... In my project I've got a folder 'Images' where from my application loads icons etc. Running project from IDE (NetBeans) it's of course working fine, but I want to create stand-alone application, so I create .jar file. And here's a …

I am working on this lotto project which generates 6 random numbers in which are put into an array. How do i put it in an array where the numbers don't repeat?

[CODE] public void deleteDvd(String title) { String DvdCompare; Dvd dvdObj; Collections.sort(dvds); for(int i = 0;i< dvds.size();i++) { DvdCompare = dvds.get(i).getdvdTitle(); dvdObj = dvds.get(i); if(title.equals(DvdCompare)) { System.out.println("Dvd is in system"); int index =Collections.binarySearch(dvds,DvdCompare); dvds.remove(index); //delete method in arrayList } else if (!title.equals(DvdCompare)) { System.out.println("Not found Dvd Object"); } } }[/CODE] I'm …

It keeps giving me this exception when it [I]seems[/I] like I am adding a choice to my choices vector, and I don't know why. Here is that snippet of code. If you need more I can provide it. Thanks ahead of time. [CODE=java]import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Vector; …