35,618 Topics
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 | I am new to programming and I am trying to fix the Java code errors below and no matter what I do I cannot get it to compile and run. Would anyone mind helping me with this and explain what I am needing to do. Thank you. import java.util.Scanner; public …  |
| | Greetings everyone, I'm still new to android programming and currently leanrning how to connect to DB. I'm following a online tutorial but I'm still facing problems. The tutorial is about creat a registration form and sending it to the database through volley. I'm using .hostinger.ae as host and Android studio. … |
 | Hi, I am creating a form in jsp. <form action="" method="post"> <input type="hidden" name="status_1" value="0" /> <input type="checkbox" id="status_1" name="status_1" value="1" /> <input type="hidden" name="status_2" value="0" /> <input type="checkbox" id="status_2" name="status_2" value="1" /> <input type="hidden" name="status_3" value="0" /> <input type="checkbox" id="status_3" name="status_3" value="1" /> <input type="submit" /> </form> I was …  |
| | Hello there, I am writing a data structure and restricted not to use any API or collection. I have written a Sorted Linkedlist, which stores strings in ascending order. Basically I am writing a dictionary, which can be easier to implement by Map, HashMap or Dictionary provided by Collection API, …  |
| | Hi all; How can i ordering files in the package ,,,,java netbeans ordering files by name ,,, i want to move up or down to exganges positions of files in package.... i press click on it and move up or down but isn't work....!!! example: package filename: A.java B.java C.java … |
| | Hi guys! im working with google places and i'm currently able to show 20 markers on the map. I have a FloatingActionButton on my map screen and once the user presses/clicks on it it should display the markers based on the next_page_token. Currently ive hard coded one in for testing … |
| | There are 3 JTextfields that are supposed to display info in each one after you click List Info and brings you to a new GUI and you automatically see the info in the JTextFields, but it's not displaying anything. Also I'm using Eclipse and SQLite Manager if that helps. Iogin, … |
| | Hi, I am stuck with a problem. I have two Date objects (util class objects). I want the difference between these two dates as the number of days between them? I am using Java 8. Can you please help me with this? Searched the web a lot. Some are saying … |
| | Hi, I was using booleans earlier in my class. --> isProductRestricted --> internal --> isProductGlobal I am using lombok too. So putting @Data at the top of class too. But, now I changed these boolean to Boolean variable. I got errors where ever `Object.isInternal()` was used. I am not getting … |
| | Good day everyone, I'm trying to save an inputted data using JTextfield in JAVA GUI into MySQL database. But when i pressed the save button nothing happens. I want to show you all my work right now. Please try to help me, Thank you in advance! if(e.getSource().equals(save)) { //THE SAVE …  |
 | Hello! I have written a simple program which connects netbeans with SQL Server database. The program is giving an exception. I am displaying the source code of my program and exception below. Please guide me to solve this problem. public class dbconnection { Connection con = null; public static void … |
| | Hi. so we have this tutorial, a program that we have to complete, that we have to do before attending class and I've sort of completed it except for this small error. > Exception in thread "main" java.lang.Error: Unresolved compilation problems: > id cannot be resolved or is not a … |
| | Hey, I have one class Company and one Item class which is an object in Company class as shown: public abstract class Company { @Inject private ItemClass item; void companyMethod() { this.item.itemMethod(); } } public class ItemClass { public void itemMethod() { // logic } } So, many class inherits … |
| | ...well I'm just about to step into my sophomore year in college as a computer science engineer, undergraduate . I was eager to know about all the important and world renowned competitions that are held in the field of computer science. I just know about ACM ICPC . I'm interested … |
| | I need some help with an assignment. It's already done, however my teacher made specific comments thatneeds to be addressed before I can resubmit it. - I have the wrong implementation in insertFront() and removeRear() methods. - I am missing a wrap-around in my peek() methods. - I did not … |
| | hi experts, [code=html]<a href="http://www.example.com"> goods </a>[/code] this is the hyperlink i have to used for example. i want to get the term 'goods' in the above hyperlink through jsp if i will click 'goods'. can i get the term in jsp like the below snippet?? [code]<% String goods=request.getParameter("goods"); %>[/code] or … |
| | somebody help me with this please package py.com.sistemas_ventas.view; import java.beans.Beans; import java.util.ArrayList; import java.util.List; import javax.persistence.RollbackException; /** * * @author Mirtha */ public class DepartamentoView extends javax.swing.JFrame { /** Creates new form DepartamentoView */ public DepartamentoView() { initComponents(); if (!Beans.isDesignTime()) { entityManager.getTransaction().begin(); } } /** This method is called from … |
| | Hey I just found this site because I have been working on a program to make answer and create questions to the game 24. (24 is a game where players are given 4 numbers and by either adding, subtracting, multiplying and Dividing the given numbers the number at the end … |
| | how would I add text that the viewer could see and not just to the console as well as it not getting rid of the other text on the page? <!DOCTYPE html> <html> <head> <title>help me</title> </head> <body> <p>this is a line of text</p> <p>this is another line of text</p> …  |
| | Im using Java Threads to implement the Weka CrossValidation (10fold CV), but im having difficulty understanding where the averaging part takes place in the method EvaluateModel(), i need to make sure each thread have it's own copy of the error rate for each fold and then perform the averaging when … |
| | Hi, I have 2 projects opened in eclipse,I have added one of them as a maven dependency to the other.When I enable workspace resolution I am getting an error:Missing artifact myprojectname:jar:1.0.0 and when i disable workspace resolution it is showing some member properties of the class related to the project …  |
| | Hi, Currently my PC is setup for .Net development using Visual Studio 2012. I'm starting to look at JAVA programming so I was wondering can the JDK and Netbeans/IntelliJ/Android Studio coexisit with my .Net Development environment? I do not want to install the JDK and the either if the IDE's … |
| | Guys who know how to develop custom rom ? |
 | Hello All, I am currently working on developing an authentication system. Below are the details: This code inserts the details (username and password) to the database. the password is hashed and stored in the db package org.controller; import java.io.IOException; import java.io.PrintWriter; import static java.lang.System.out; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; … |
| | Hello! I have to print patterns using '*' and I am at a loss how to get these patterns printed! I figured out the first one, * ** *** **** ***** ****** ******* ******** ********* ********** and now i have to do it upside down: ********** ********* ******** ******* ****** … |
| | I know this is really messy code but I am writing a Paint app in Java for a class and I'm getting an ERROR when I drag the mouse. MousePressed works properly (prints). MouseDragged, however, throws a NullPointerException. Please let me know what the problem is here. I'll put a … |
| | i want to count the checkboxes i putted in my project when they get selected and they cant available again when they get stored in mysql plz rply me on shreyasmnt@gmail.com |
| | I have a series of activities the last of which holds results. I have 'Send to Printer' button which needs to send these results to a wireless printer. Can anyone give me an example of doing this? I''ve trawled the web but there seems to be very little on this … |
| | Hi, I am writing a code to dynamically create a table and then add delete and modify records. The table is created from an existing database table. How ever the add and the deleting of records is not wrking. I think there is some error in the query statements. Please …  |
| | hi i am practicing this program here and i am outputting zero. trying my best where is the error here is the code double fed_tax = 0, state_tax = 0, hrswrk, payrate=0, gross_salary = 0; double hrlyrate=0; System.out.println("hi please enter your first name"); String firstname = userinput.next(); System.out.println("hi please enter … |
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