36,051 Topics
 | |
| | Hello Guys , When I checkout code from svn i get this error message any idea to fix this issue ? I use netbeans 7.3.1 , plugin subversion.   |
 | I have just started to learn java..!! I'm trying to implement some C++ programs in java.. Some of them are working perfectely. But this is the only program which is not working.. It's showing 2 errors at br.readLine().. I don't know what to do.. Kindly please have a look on … |
| | i am try to compare the Stored-password and Salted Password for the Experiment. Now i have a Stored Password and Salted-password., Stored-password having 72-byte and Salted-password having 18-bytes only, but i facing problem on comparison, how can i compare the both of them.. Here my Code : RandomAccessFile raf = …  |
| | Hello all! Again thanks for viewing my thread. The past couple of days I have been struggling with trying to add JPanels to a JScrollPane. Basically I have data to display that comes in from another application in the form of a JPanel with regular updates. I am trying to … |
| | code in java for send a free msg from internet to mobile phone like way2sms or 160by2 sites................. what are the requirments for that???? pls reply as fast as possible...........  |
 | I downloaded eclipse to my windows 8 computer along with the jdk and when I launch eclipse it tells me that it cannot not find the jre or jdk and that it is not in my current PATH. I have tried setting the path to the jdk folder but it … |
| | Hello guys i want to show a data in my combobox when i click on an item ion my jtable i tried this but it doesn't work. i would apprecite it if any one can help thanx String add5 = rs.getString("Id_branch"); branch_combo.setSelectedItem(add5); String add6 = rs.getString("User_Role"); UserRole_combo.setSelectedItem(add6); |
 | I am trying to write a program to calculate mean & standard deviation. I sort of figured out how to find mean (it is not correct yet, so i am going to need help on this part as well) but how do you do standard deviation? import java.util.Scanner; public class …  |
| | This is a code that I wrote and for some odd reason it doesn't count the number of inputted integers properly. import java.util.Scanner; public class IntegerCount { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("Enter an integer, the input ends if it is 0: "); int … |
| | **HEre is my checkout.java** index LCval = new index(); final String LCnum = LCval.getVal(); JButton btnNewButton_1 = new JButton("Finish"); btnNewButton_1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { try{ int bal = 0; Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); String connectionURL = "jdbc:sqlserver://ROHAN\\SQLEXPRESS;Database=sys;user=rohan;password=rurouni;"; Connection con = DriverManager.getConnection(connectionURL); PreparedStatement pst =null; ResultSet rs = null; //Statement st=con.createStatement(); … |
| | Is this correct? I wrote a decimal format and it doesn't work. how do i correct this: return sum / myFormatter.format(Math.sqrt(x.length - 1)); I will submit the full code if needed. |
 | I learn Java programming language. I have a .exe file that was produced with lunch4j. I can easily run that application in my computer but I can't run it in other computer. I got error ""Window can't access the specified device, path or file, you have the may not have … |
| | My requirements are as follows: 1. use main method 2. use the following array- `int[] grades = new int[] {` `82, 70, 99, 90, 92, 75, 87, 85, 91, 100, 91, 87 ` `};` 3. Write code to step through the array of grades and calculate the average grade. Modify … |
| | Hey everybody, Lately I have written the game Hangman in many different languages (C, JavaScript, Java and PHP so far). Here is the code snippet for Java! It uses a words file, on the bottom of this post you will see a small example of a few words. The source … |
| | I am trying to do an assignment that requires us to do something with pentagonal numbers. This is my code: import java.util.Scanner; public class Pentagonal { public static void main(String[] args) { System.out.print("The Pentagonal Numbers: "); getPentagonalNumber(10); } public static int getPentagonalNumber(int n) { Scanner input = new Scanner(System.in); System.out.print( … |
| | I am trying to reverse the number that is doubled from the user input. Problem is that if they enter a number like 20000 it gets doubled into 40000 but it reverses it to 2 rather than 4. How do i get it to make the doubled number reversed and … |
| | Okay, so for another assignment I have to find the distance of two points. I understand how that works but for some odd reason, when the program the professor set up tests it, the numbers are way off. This is what i have done: public class Distance { public static … |
 | I made this minesweeper game earlier this summer. It shows many things, including: array use, 1D array to 2D array, gridlayout, changing the way a JButton works depending on mouse button used, floodfill, loops, GUI. slightly long, 382 lines, can probably be condensed. There is one known bug that i … |
| | This is how you calculate the area of a triangle, hope you guys find this useful. import java.text.DecimalFormat; import java.util.Scanner; public class Exercise2_15 { // find the area of a triangle public static void main (String [] args) { double side1 = 0; double side2 = 0; double side3 = … |
| | I have a problem with my newly application where i want to execute a c/java program file. And after executing the file i want to work with the output of that file. Please anybody give me the solution for that how can i do this? |
| | Hi guys, i am trying to find the area of a triangle and for some odd reason i can't get it to produce the right numbers. Here is my code: import java.util.Scanner; public class Exercise2_15 { // find the area of a triangle public static void main (String [] args) … |
| | in my program a simple shopping application for my lab exercise, i just calculated the price of items inside a for loop but when i try to print it outside it is not getting printed...pls give me some suggestion. for (int i = 1; i < 7; i++) { String … |
| | [CODE] try { Class.forName("oracle.jdbc.driver.OracleDriver"); Connection con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "scott", "tiger"); if (con == null) System.out.println("Connection not successful"); else System.out.print("successful...."); con.close(); } catch (Exception e) { e.printStackTrace(); } [/CODE] Error: [CODE] java.sql.SQLException: The Network Adapter could not establish the connection at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:412) at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:531) at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:221) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503) at … |
| | Hi, I need to create a Add-on for firefox I have tried the following methods and it is working fine 1. Using XUL runner 2. Drag and Dropping the .XPI file in the Mozilla Firefox.(using XUL, HTML,CSS and Javascript). Can anyone tell me How to create an Add-on for Firefox …  |
| | Hello I'm new to programming and I'm trying to make a java application that will "hear" (not record necessarily) the sound and display how loud is.I'm thinking of converting the sound recordings to numbers,so I can see the difference on the sound levels.I got this code and I added the … |
| | hi all i have created a jsp page for online exam here i have created a database to store all the question and answers ,used the database to fill all the radio button values,but whenever i retrieve the radio button value and compare it with the database value it is … |
| | I have following questions, can someone tell me if i answered correctly Can we configure portlet wiring for two portlets mapped on two different pages? no Custom Validators in JSF will be executed during the Render phase, is it correct? yes SOAPUI is specialized in optimizing the web services message … |
| | hello everyone.. im trying to insert date into mysql..the field is of date type bt when i select a date from datepicker and insert it into database,it takes a random date..not getting where the problem is.. the code is as follow SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); java.sql.Date d = null; …  |
| | How do you add a membership records in java(bluej) First Name, Last Name, phone number. Please can you help me  |
| | Hi, I was asked to make a Phone Book thats saves entries and call them up. Then the teacher added a new task. The Program should delete entries. He gave us a methode and said we are not allowed to use ArrayList or Hashmaps, ONLY Arrays. I tried alot but … |
| | Hello guys i want to know if its possible to format a text as it is done ms-word on a jframe? i want to be able to edit the text i put on my jframe by specifying the heading, making some texts bold, adding font color to som texts and … |
| | Okay, last question of the night. My program is to have a program collect a number, double it, and reverse. I am having problems with reversing it... Here is my code: import java.util.Scanner; import java.text.DecimalFormat; public class ReverseNumber { public static void main(String[] args) { Scanner s = new Scanner(System.in); …  |
 | hi guys, I wonder if anybody can clarify something for me. Take these 2 fragments of code (2 constructors belonging to 2 different applications): First one: public MouseTrackerFrame() { super( "Demonstrating Mouse Events" ); mousePanel = new JPanel(); // create panel mousePanel.setBackground( Color.WHITE ); // set background color add( mousePanel, … |
| | Testing the following code from a book public class RunTime { public static void main(String[] args) { Runtime r = Runtime.getRuntime(); //MEMORY MANAGEMENT long mem1, mem2; Integer intmatrix[] = new Integer[1000]; System.out.println("Total memory is :" + r.totalMemory()); mem1 = r.freeMemory(); System.out.println("Initial free memory is :" + mem1); r.gc(); mem1 = … |
| | problem: that is not successful login when we enter email and pass but process going to sorry email id or password error %@page import="bean.LoginDao"%> <%@page import="bean.LoginBean"%> <%@page import="bean.ConnectionProvider1"%> <%@page import="bean.ConnectionProvider"%> <jsp:useBean id="obj" class="bean.LoginBean"/> <jsp:setProperty property="*" name="obj"/> <% boolean status=LoginDao.validate(obj); if(status) { session.setAttribute("session", true); out.println("You r successfully logged in"); } else … |
| | Okay, so this is a similar error to the code before. So I created this: import java.util.Scanner; public class IntegerCount { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("Enter an integer, the input ends if it is 0: "); int num = input.nextInt(); if (num == … |
| | On my code, it says that there are 2 mistakes and I can't fix them. Here is my code: import java.util.Scanner; public class Exercise4_1M { public static void main(String[] args) { int countPositive = 0; int countNegative = 0; int count = 0; int total = 0; Scanner input = … |
 | // Create the cboSelectGroup, and add it to the navigation panel: //String[] strDefaults = {"Defaults"}; //cboSelectGroup = new JComboBox(strDefaults);Public Class Form1 cboSelectGroup.setPreferredSize(new Dimension(150, 40)); cboSelectGroup.setMinimumSize(new Dimension(150, 40)); cboSelectGroup.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnImagesActionPerformed(evt); } }); |
| | Hi guys, I am working on an assignment for a class of mine (Java) and I am really frustrated with it. This was my very last attempt (out of like 20)... System.out.print( "Enter temperature in Celsius to convert to Fahrenheit: " ); double c = kbinput.nextInt(); double f = ( … |
 | |
 | I'm currently working on a homework assignment in one of my classes, and I'm having some trouble with it. I am supposed to make a multithreaded messaging program that allows users to connect using both TCP and UDP. The messaging program works perfectly when TCP is selected. However, I do …  |
| | hi, everyone I am a Java newbie. I have followed a bunch of tutorials and examples from the web but they all failed miserably at teaching me how to properly apply this library: com.google.gson. First how do I receive properly in the java servlet a json request that has been …  |
| | Hello Everyone, I am having trouble getting a display of my program on the JTextArea "DisplayWindow". My code works and compiles but i do not know how to transfer the program to run on the GUI. It is really simple and I just want it to display and accept the … |
| | I'm new and trying to draw a table type where I can place scores inside like 5; A B C 1 5//this is where it all falls apart 2 3 I have this so far but not working; public class Table3 { static int[][] list = new int[4][4]; //private char … |
 | Dear all, I have a program to code which would take several lines of input from user (a fruit name, it's price per kg and the number of kgs sold). Each seperated by a space. It would then output the total money made and the name of the fruit that … |
 | I've got a JTable called chances_T full of doubles ranging from 0 to 100. I'm trying to set the background color of each cell based on the cell's value. So I built a custom cell renderer: class CustomRenderer extends DefaultTableCellRenderer { @Override public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, … |
| | I am trying to cut the decimal off the output of this small code: import java.util.Scanner; public class Distance { public static void main(String[] args) { java.util.Scanner in = new java.util.Scanner( System.in ); double x1 = in.nextDouble(); double y1 = in.nextDouble(); double x2 = in.nextDouble(); double y2 = in.nextDouble(); double … |
| | I am trying to set the boolean newEnergy to true only when the item is found. However, it is true at the beginning of the game and remains true until the command 'use' is used. Is there anyway to set newEnergy = true only when the item is found or … |
 | public void printmembersdetails() { System.out.printin(member.FirstName = firstname); System.out.printin(member.LastName = lastname); System.out.printin(member.IDNumber = IDnumber); System.out.printin(members.PhoneNumber = PhoneNumber); } System.out.printin(member.FirstName = firstname); System.out.printin(member.LastName = lastname); System.out.printin(member.IDNumber = IDnumber); System.out.printin(members.PhoneNumber = PhoneNumber); } is this right |
 | Hello I am trying to create a class that called Lootable and create subclasses such as trunk, locker, etc. that will contain items that can be looted, they will inherit their lootability from the Lootable class. I am thinking of using the ArrayList for this. I have thought of different … |
The End.