36,051 Topics
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| | [code] import java.util.Scanner; public class LazyDays { public static void main (String[] args) { Scanner scan = new Scanner(); int temp; System.out.println ("What is the current temperature?"); temp = scan.nextInt(); if (temp < 20) { if (temp > 95) { System.out.println("Go visit our shops!"); } } if (temp >= 80) …  |
| | i am trying to learn servlets so i downloaded tomcat server.I learned that i have to do this...set path=c:\tomcat\lib\servlet.jar or click the exe file tomcat6 in the bin folder. I tried to connect with localhost8080 it is not working.I am not getting Tomcat home page. Any help will be great. |
| | As part of an assignment I have been asked to create a SortedLinkedList class. We have been told that we must use the java.util.LinkedList<E> in order to dervie this class. I understand that I must in some way overwrite the .add(Object) method. I realise that I must in some way …  |
| | i want to remove 0 from an integer array.like if i have an array having element 2 2 1 1 1 0 1 1 2 1 0 1 ,i want this as 2 2 1 1 1 1 1 2 1 1,plz help me |
 | Hello, I would like to be able to add 'n' columns programmatically and SET THEIR TITLE as I add them. I have 2 questions: 1. How can I change the title? (not by seting a model to my table but just 'changing a property' - if possible)? 2. Is there … |
| | Hi all, I'm just starting java and had to create a method to return the amount of text messages needed for a message x characters long. I'm having trouble compiling and not sure exactly why [CODE] public void msgsReqd(int msgLength) { int numMsgs, smsLength = 160; msgLength / smsLength = … |
| | [CODE] import java.awt.*; import java.applet.*; import java.util.*; public class Tower extends Applet { TowerPanel panel; TowerControl control; public void init() { resize(500,450); setLayout(new BorderLayout()); panel = new TowerPanel(); add("Center", panel); add("South", control = new TowerControl(panel)); } public void start() { panel.start(); } public void stop() { panel.stop(); } public boolean … |
| | import java.util.Scanner; public class CalculatingSales { private static boolean Double; public static void main(String[] args) { Scanner input = new Scanner ( System.in ); int ProductNumber; double RetailPrice; double total = 0; int Product1Count = 0; int Product2Count = 0; int Product3Count = 0; int Product4Count = 0; int Product5Count … |
| | just trying to create a person(or two) using name, age and nationality but its giving me illegal start of expression error // **************************************************************** // Person.java // // Person class with two constructors // *************************************************************** public class Person { private String name; private int age; private String nationality; // ------------------------------------------------------------ // … |
| | hello everyone how can i mask a date using [mm/dd/yyyy] and [mm/dd/yy] format in textbox in java?.. and how can i also mask the amount of money using[###,###,###.##] this format?.. thanks!  |
| | i want to program the parallel port pins to control the electronic / electrical devices. the pins 2-9 i know can be programmed. |
| | Hey Guys, I want to convert a character to it's bit representation. For eg: If i have the char 'J' then it's bit representation is '01001010'. Pleae tell how?? |
 | [CODE]import javax.swing.JOptionPane; public class PossitiveNegative{ public static void main(String[]args){ int N1, N2, product, PoNoN1, PoNoN2; String N1Str, N2Str, productStr, OutputPoNoN; N1Str=JOptionPane.showInputDialog("Enter a number :"); N1=Integer.parseInt(N1Str); N2Str=JOptionPane.showInputDialog("Enter another number :"); N2=Integer.parseInt(N2Str); product=N1*N2; if (N1>0) PoNoN1=N1+"(POSITIVE)"; else if (N1<0) PoNoN1=N1+"(NEGATIVE)"; else PoNoN1="(NEUTRAL)"; if (N2>0) PoNoN2=N2+"(POSITIVE)"; else if (N2<0) PoNoN2=N2+"(NEGATIVE)"; else PoNoN2="(NEUTRAL)"; if … |
 | Hey guys, I have one stupid problem with the return value of one function... this is my code: [CODE=Java] private boolean check(String mail, int N){ // mail = The mail // N = The sum of the characters before the @ and including it him if(mail.substring(N) == "hotmail.com" || mail.substring(N) …  |
| | so i just started a computer programming course I am in first year and I am learning JAVA. so far its been pretty straight forward and I am enjoying it. Our project at the moment is to take a Birdspecies Class, a Person Class and a Sighting class( they are … |
| | I am suppose to move the code from the 1st program that actually plays the game into a new method. I am really new at this and have no idea... import java.util.Scanner; public class GuessingGame { public static void main(String [] args) { Scanner scan= new Scanner(System.in); int n; //a … |
| | Hello everyone, right now I'm taking a java class, and I'm having one error in my app. Right now I have to .java files, one which calls the methods from another .java file. When I compile the first java file, it doesn't give me any error. But when compiling the … |
| | Hello daniweb. I'm working on a Poker Holdem Application and I'm trying to work on a view/jframe for it. Everything was running smoothly until something weird happened. After deleting an old hand-coded MainFrame which extends JFrame file, I tried to create a new MainFrame/JFrame file but this time using netbeans … |
| | Can anyone teach me on how to create a program that counts spaces entered in a string..... |
| | Can anyone tell me or point me in a direction as to how I could get output in latex maths notation in java. Is there a package I can import? Is java not the right language to be doing something with latex? I searched around the net but unfortunately didn't … |
| | [CODE]<%-- Document : AddCity Created on : Oct 6, 2009, 9:14:52 PM Author : Vishal --%> <%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body onload="ShowMessages();"> <html:form action="AddPage.do"> <p><a href="HomePage.do">HomePage</a></p> Cityname: <input type="text" …  |
| | Hi guys i'm new to programming and i'm supposed to do a sum then average in which the output requests for four numbers from user then takes those #'s add them up and get the average then do a number of values in the array greater than the average is... … |
| | I was wondering if anyone would tell me what I am doing wrong because I'm really stuck and getting really sad :sad: goal: copy contents of oldZipFile.zip and create a newZip.zip with contents of old zip file. Problem: If oldZipFile.zip just contains .txt files, it works. But if it contains … |
| | Hey, Currently I am doing an assignment building an enterprise web application. One of the specification states that I need to make a calendar view of a booking system in JSP. Is there a library out there that help me doing this? Calendar view here is a page that represents …  |
| | Hi guys/Girls.. i have been trying this question for the past 3 weeks using java SE... i tried very hard but could get the output... do try to help me out... [B]Question[/B]: [I][COLOR="Red"]Write a program for a bag of strings, where the strings are stored in binary search tree. In … |
| | i have struts html based checkbox <html:checkbox disabled="true" value="Y" property="active" >Yes</html:checkbox> when i submit the form after checking the checkbox the bean value should get "Y" value. Since the checkbos is disabled the bean value becomes null even after i check the checkbox do any one know a solution for … |
| | I encountered some code at work that got me thinking. There was a util - class that had some methods that had nothing to do with the state of the class. They were all "util" methods. Meaning that they could all be declared static with [U]no[/U] problem because the only … |
| | hi all, im doing a project where i have to implment a rpg game... i have a class called item and the constructor looks something like public Item(int x, int y, String image_path, boolean z) { map_x = x; map_y = y; image = new Image (image_path); pickup = z; … |
| | [CODE]package Add; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.ActionForward; public class AddSuccessAction extends Action { private final static String SUCCESS = "success"; public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { … |
| | Write a program that generates one hundred random integers between 0 and 9 and displays the count for each number. Your program must have method that returns the counts for each number. Hint: Use (int)(Math.random() * 10) to generate a random integer between 0 and 9. Use an array of … |
 | The source of my COPYRIGHTED tictactoe java game. It shows how to use multiple classes, methods, etc. |
| | I designed chess board game before , i did for loop for rows and i did for loop for column ... and the result appear good . But here i want to make the board by two inner loop inside them . I do that but the rows not appear … |
| | java programming is the latest program around the world. i am a student of computer programing our assessment are too near, i need to learn java programs in just four days starts from tomorrow ... could you? |
| | I am trying to write a program that will give me the volume of a cylinder when I run it. I already have a Circle class that computes the area of a circle. I am also using a seperate program to handle the input and output. Could someone tell me … |
| | I dont have idea how to show "kim chong" words backward(gnohC mik). anyone have idea for this quenstion pls share thanks! |
| | Hi, I made this test page: [url]www.wearwolfdesign.com/index.php[/url] In Safari, Opera, Internet Explorer and Google chrome it works perfectly all look slightly different but acceptable. The problem is in FF the text at the top looses all it's format and goes a horrible font with no positioning. The second issue is … |
| | An online retailer sells five products whose retail prices are as follows: Product 1, $2.98; product 2, $4.50; product 3, $9.98; product 4, $4.49; and product 5, $6.87. Write an application that reads a series of pairs of numbers as follows: a) product number b) quantity sold Your program should … |
| | Write a class called Person.java that has instance variables matric number, name, date of birth, and gender. Use appropriate data types for these instance variables. Include constructor and set and get methods for all instance variables. Draw UML diagram for class Person. Then, create an application class that asks the … |
| | Since I am still beginning to explore the digital television technology, I read and reviewed the information I found on this site: [url]http://www.tvwithoutborders.com/[/url]. I found many interesting ideas about developing interactive TV viewing on a mobile. In the latter site I found out that you can make an application using … |
| | Hello. I've been using NetBeans for quite a while, and I really like the Draggable components that it uses. In both the GUI Builder & the GUI itself. So, my question is, How do you drag components around in the UI like that? I've looked into the java.awt.dnd package, and … |
| | So, i'm working on creating a very basic currency converter from Pounds to Euros or Euros to Pounds. It takes the exchange rate from the user then asks which way to convert. Then asks the amount of currency. This was easy for me to do in just one main class, … |
| | I need to display the loan table with the annual interest rate, monthly payment, and total payment for the number of years entered. When I run my program, it only displays the info for 8%, when I need to display all interest rates from 5% to 8% in increments of … |
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| | Hi, I am firs time on this forum. I am looking for somebody to develop smart card system for pay per use tanning beds. Anyone interested please contact me. |
| | Forgive me for making a topic that has the potential of being too broad. I will do my best to avoid generalizations and get to the point. I have a development team that is experienced in C++, some Java, PHP, and SQL databases. We are trying to create a web … |
| | There is a jsp page on which I have to access the selected value from a dropdown list and then compare it's value with the field 'role' stored in mysql database. I have to comapre both values to authenticate the user. I can access the role from dropdown list but … |
| | This is a working program. But there is a logical error. Try this with the calculator: Press 2,M; Press R,*,2; Press R,*2; The output in the same order must be: 2 2*2 = 4 2*2 = 4 but the third one outputs 88 instead. M stands for Memory, it stores … |
 | WHAT i want to happen is, when i click the CALCULATOR menu item, my separate Calculator.java will run on the MenuShortCut JFrame. AGAIN, i want the separate .java file to appear on THE SAME JFrame of MenuShortCut class. here's what i've got [CODE=java] import javax.swing.*; import java.awt.event.*; public class MenuShortcut … |
| | Hi, I have some problems aka how to bring value of type double (or even array of double values) through socket from C++ server to Java applet client. I tried two possibilities. For example: [LIST=1] [*] Doesn't work, but I think it could be ok while working In c++ my … |
| | I wonder if i writing the correct code segment to read data from binary file.eg.the content file operation in constructor [CODE] try{ raf = new RandomAccessFile("record.dat","rw"); } catch(IOException ex) { JOptionPane.showMessageDialog(null,"Error create file"); System.exit(0); } [/CODE] write content to file [CODE] do { Name = JOptionPane.showInputDialog(null,"Please Enter The Account Holder's … |
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