36,051 Topics
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| | Ok, well Iam just about done with one of my assignments, but Iam having a problem at the end of it. Iam suppose to find a maximum income of the families income that the user inputs and I have to find the families that make less than 10% of the … |
| | Hey Guys i was wondering if i could get a bit of help I'm creating a program that contains a number of different sorting methods (insertion, quick, merge) that sort an array of bikes. [CODE] Bike[] bikes = new Bike[13]; bikes[0] = new Bike("Mountain", 160, "Diamond", 6, 18, "Standard", "Hardtail", … |
| | Hello. I going to write fames.xml with my app. I need to know the best way to handle adding a block of XML but not at the end because I need to have the root element at the end. Any ideas. 1.never end it but when I use it add … |
| | I have no idea how C++ works, but I'd like to learn... Is it possible to create java files/programs using C++? |
| | Hey guys I have a method that is calculating a time based two JComboBox selections. I am returning the time as a Date object but it prints the date and time, when I say 'cal.getTime()'. The date is always the same, the format is Thu Jan 01 (time i calculated) … |
| | Hi! My code worked correctly, but now it produces the error message. It seems that the command [ICODE]treeModel.reload();[/ICODE] doesn't work anymore. Please explain me what happens? [CODE] private void addOrgFolder() { String[] data = new String[2]; data[0] = text2.getText(); data[1] = text1.getText(); DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode)SystClasses.TreeEditTest.tree1.getLastSelectedPathComponent(); tableModel.setQueryDontChangeTable("insert ..."); DefaultMutableTreeNode nNode … |
| | Hey. I've been working on this for a while and am having a lot of trouble with it. What I have to do is: Some processing requirements: - all data entry will be in the main method - must use a sentinel loop to stop processing salespersons - must test … |
| | Hello people. I am writing a program that helps users see if they can afoord monthly costs (tuition and rent). here is the main method: [CODE]import java.io.*; public class UserClass { /** * @param args */ public static void main(String[] args) throws IOException{ Finance fin=new Finance(); fin.liveWithParents(); fin.amountRent(); fin.collegeTuition(); fin.getMonthlyCost(); … |
| | Here is my code: [url]http://pastebin.com/KTR86nzD[/url] This is input.csv: name,age Fred,88 Stella,11 Nellie,99 George,22 Violet,33 Rose,77 Bob,66 Lena,55 Billy,44 It should print the above in this format - Fred is 88 years old Stella is 11 years old Nellie is 99 years old ... Billy is 44 years old. Afterwards, it … |
| | [CODE]public class ReverseArray { //declare an array variable //do not call new yet! int[] array = new int[100]; int a; int[] getCopy = new int[array.length]; /** * Constructor * * Reads in int values and stores them in an array. * The first int in the input is the number … |
| | Hi! If I run the code shown below from my local machine, where the FTP server is installed, then everything works correctly. However, if I try to run it from some other machine, then the message "Cannot connect to the FTP server!" appears. Settings of my FTP Server are shown … |
| | Hi I am creating a Media recorder/player using JMF. I have created a frame which is GUI based with buttons. Can anyone help me by writing the code of the function to increase/decrease volume and develop a playlist for playing different media files? |
| | Hello I am quite new to GWT and Java. I am doing an assigment which helps students select courses. The application starts and the user clicks on a department. When they click on the department the courses offered by that department are shown with check boxes next to each course. … |
| | hello everyone hope all ok i'm facing a problem in Netbeans in that when compiling no error exist but when running nothing happen or displayed, can anyone help me in it plz |
| | ok so I have to make that toggleCircusStatus() gives me the opposite of fromCircus [QUOTE]Write a public method called toggleCircusStatus that negates the value of the circusStatus variable.[/QUOTE]] [CODE] public class Elephant extends Mammal { private boolean fromCircus; public Elephant() { super(); fromCircus = false; } public Elephant ( String … |
| | How can I check if an input is a String of alphabet characters..not int double etc etc... |
| | Hello Everybody, I am a beginner, I am got stuck with following error at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Unknown Source) at java.lang.Class.getConstructor0(Unknown Source) at java.lang.Class.newInstance0(Unknown Source) at java.lang.Class.newInstance(Unknown Source) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1089) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3956) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4230) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014) at org.apache.catalina.core.StandardHost.start(StandardHost.java:736) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:448) at org.apache.catalina.core.StandardServer.start(StandardServer.java:700) at org.apache.catalina.startup.Catalina.start(Catalina.java:552) … |
| | I keep getting these errors in the program below. Here is the assignment: http://www.people.vcu.edu/~dprimeau/cmsc255/fall10/fifthprogram.html C:\Users\FerretFool0x77>javac Person.java Person.java:43: illegal start of expression public void recordpersonsinhousehold(int x){ //created 11/16/10, modified 11/19/10 ^ Person.java:43: illegal start of expression public void recordpersonsinhousehold(int x){ //created 11/16/10, modified 11/19/10 ^ Person.java:43: ';' expected public void recordpersonsinhousehold(int … |
| | HI.... I wanna create runtime graphical nodes using jsp...could anyone send me code for this one...pleassssssss |
| | Wrote this program to find if 2 phrases are Anagrams of one another. Works except that I need to make it ignore any other character than letters(including spaces) As is now I get 4 errors, all in that last boolean 1&2: cannot find symbols for phrase1/2.length (tried anag.phrase and didnt … |
| | Hi guys I'm trying to take a user input (name) and replicate the input in other methods. Can anybody help? Here is the code: [CODE]import javax.swing.JOptionPane; public class example { public static void main (String[]args) { entername(); } public static void entername() { String a=""; a = JOptionPane.showInputDialog("Welcome. Enter name … |
| | I do not want to have my box this wide. I would like the text to wrap but I do not know how. Can I do this? I'd like my box to be 400,400 rather than 1250,200, but it is the only way I can get my text to fit. …  |
| | How in Java SE and EE(Web), I may program in a form, a drop down menu and same time itself be a textbox user can type in?  |
| | This is my second day with Java. So far, I'm enjoying it quite a bit. It has the structure of C++ that I like, and with so much more utility (lots of type conversion built in)! I've written a console program that allows a user to input text. That text …  |
| | Hi! How could I create/delete a directory on the remote machine using FTPClient of org.apache.commons.net.ftp.*; ? The code used to save a file on the remote machine is shown below. But I would like to update it for creating/deleting directories. Thanks! [CODE] private void saveAttachedFileToRemoteMachine(String pathToFile, DefaultMutableTreeNode selectedNode) { FTPClient … |
| | Hi! I would like to get an advise about the following question. There is a set of text fields. The task is to generate a new JFrame and align text fields based on the information given, i.e. a row and column of each text field. Let's say there is a … |
| | hello, i'm vasant...recently visited an online tutorial for creating java desktop database application here is the URL [url]http://www.netbeans.org/kb/docs/java/gui-db.html#running-outside-IDE[/url] ... everything works fine...when building and executing the application from within the NetBeans IDE..6.7 but as instructed in that tutorial...when I tried to run the .jar file after exiting the netbeans IDE, … |
| | in JSP mail scripts may rather email a html code, email a file JSP, I mean NOT as attachment but itself embedded in message and show, eg pictures etc text from this file? |
| | Hello, I am having some trouble with getting my menu to respond to a mouse click.I have 2 items on my menu, "New" and "Exit", and they are using the actionlistner like so [CODE] newFromMenu = new JMenuItem("New Screen"); newFromMenu.addActionListener(this); [/CODE] and then my action event [CODE] public void actionPerformed(ActionEvent … |
| | hai, friends i have problem in inserting image into mysql database using a small java program.... here is my code for inserting image into database............ [CODE] import java.io.*; import java.sql.*; class ImageUpload { public static void connection() { Connection con=null; Statement st=null; PreparedStatement pst=null; try { Class.forName("com.mysql.jdbc.Driver"); System.out.println("driver is loaded"); … |
| | I am doing a inventory assignment, I think I have completed the code, but when I try to run it I get <no main classes found> I am using NetBean IDE 6.9.1 It also tells me: Created dir: C:\Users\marilyn\Documents\NetBeansProjects\ClassPublicPayroll\InventoryPart1\dist Not copying the libraries. Building jar: C:\Users\marilyn\Documents\NetBeansProjects\ClassPublicPayroll\InventoryPart1\dist\InventoryPart1.jar To run this application … |
| | program is working fine on YES option but on NO option it does not return ? any one give me hint ?? this.addWindowListener(new WinAdapter(){ public void windowClosing(WindowEvent e){ String cnic1 = (String)cnic.getValue(); String name1 = name.getText(); String fname1 = fname.getText(); String age1 = (String)age.getValue(); String add1 = add.getText(); String pro1 …  |
| | Hey guys, I'm trying to code a testing app which will display questions on a JForm for a period of time. I need a way of keeping track of time so I know when the user's time is up. What should I use? So far, I've found these: [B]javax.swing.Timer[/B] [B]java.util.Timer … |
| | i need to move[CODE]if(fright <= 45 && fright >= 35) System.out.println("Pressure is in range"); else System.out.println("Warning: Front right tire pressure is out of range"); [/CODE] to TirePressure but have it still print out right after i imput the tires pressure not after i imput them all and i cant figure … |
| | For a homework assignment I need to make a stoplight cycle from red to green to yellow back to red. I tried using a thread.sleep method when I press a button to cycle through but it only goes to the last sleep & setColor statement. I know this is probably … |
| | Hi! Does anybody know how to group JLabel and JTextField in order to get a single component? Thanks! |
| | Okay so in class my professor was going over this code: [CODE]class BinaryTreeNode<T> { protected T element; protected BinaryTreeNode <T> left, right; BinaryTreeNode (T obj) { element = obj; left = null; right = null; } // constructor BinaryTreeNode public int numChildren() { int children = 0; if (left != …  |
| | Here's the code : whichElement(e) [code]out.println("<li><a onclick='javascript:whichElement(e);menuClicked();selectMenu("+orders.get(i).toString().substring(43)+","+orders.get(i).toString().substring(39,40)+")'>"+orders.get(i).toString().substring(0,37)+"</a></li>");[/code] |
| | I have a compilation error using bluej java. Here is the code: [CODE]while input.equals(!"q")[/CODE] This is the error I get: '(' Could you please help me thanks :) If i add to a semicolon to the end like this: [CODE] while input.equals(!"q");[/CODE] I still get the same error. |
| | Hi, In a login.jsp page, I logged in by a user. Now by pressing the back button we can move to the login page also. If I log in this time by different user then old session getting reflected. How can I invalidate a session when we move to the … |
| | Hi there, I tried to to delete sorted number in each rows by reading a text file and write it to another file with a new format: such as readfile1.text contains 1, thoman 2, tom 3, jess87 4, kelly and so on.. I came up with this code and I …  |
| | I have been able to successfully load another java program (Calculator) within a java program with the following code: [CODE]Calculator.main(null)[/CODE] The program loads successfully but both programs have the code: [CODE]addWindowListener( new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } } );[/CODE] So once I close the Calculator program … |
| | Please any one guide me or give me some hint ... can i run my java application directly from batch file or any other way from which i can directly access GUI of application. Regards, |
| | I have started my code to create an application with two combo boxes. One that holds the names of the dormitories and the other holds the meal plans. The user should select a dormitory and a meal plan, and the application should show the total charges for the semester. I … |
| | I have a GUI program that controls all the graphics, etc of the program, while another program has all the calculations the GUI program grabs to show in its program. Well I would like to have another program that uses Frame and implements ActionListener, and launch that program with the … |
| | Can anybody tell me why I'm not getting checkboxes? Sometimes I can get one, but never the three I need. [CODE]public class SwingLab implements ActionListener { // instance variables - this instance will get reader's name private Scanner reader;//name from user private Random random; private ArrayList<String> name;//construct a responder, declare … |
| | I have tried rs.wasNull() to check the null value from the database table..but it doesn't work.. pls let me show other ways to check null.. I consider the empty table when i request. |
| | Hi folks I know this particular program has been posted in many other forums but it all involves many different things that I have no learned yet so I really can't use any of them.....plus it would make me look stupid to turn in something that I copied that includes … |
| | I'm trying to figure out how to add an element to an array of integers, but the tricky part is that I have to slide the elements to the right of it over by one place. For example: Start array: {1, 2, 3, 4, 5, 6, 7} Adding 10 to … |
| | Hello, I have a Client/Server program. The Server is BlackJackServer.java. I am having the following exception when I run the program. Can anyone explain me what the error below is saying? [CODE]java.net.SocketException: Software caused connection abort: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92) at java.net.SocketOutputStream.write(SocketOutputStream.java:136) at java.io.DataOutputStream.write(DataOutputStream.java:90) at java.io.DataOutputStream.writeUTF(DataOutputStream.java:384) … |
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