[java] Forum Topics

I need to have a update button to update a edited textfield and save it to the database. I have created the button but have no idea on how to make it update the edited textfield and update the SQL database automatically. Pls help!!): This is my code: [CODE]private JButton …

says the R.java cannot be resolved but the reason seems to be not solved by refreshing or clean building the code..it has something to do with the different build target paths

import java.awt.*; import javax.swing.*; /*<applet code="SampleApplet1",200,300> */ public class SampleApplet1 extends JApplet { int num; public void init() { num=20; } public void paint(Graphics g) { g.drawString("Hello to Applets.Session"+num,70,80); g.showStatus(getAppletInfo); } public int getAppletInfo()//Overrides super class method { return("Created by PTSS"); } public static void main(String arg[]) { SampleApplet1 obj= …

Can you help me with one problem, I dont know how to invoke action op menu not the menu item? I have File and Help menus and I need to invoke action when the Help menu is pressed but dont understand how, I know how to do in on MenuItem …

File, new project, Java+Java application, Project name just a random name, finish. Then.. new file, Java+Java class, Class name payroll, finish.. [code] /* * To change this template, choose Tools | Templates * and open the template in the editor. */ package javaapplication5; /** * * @author computer public class …

Hi, I need to create an html page to export some information. Currently, by using java, i've exported information to excel. But now, I need to export the information in HTML page using java.Is there any APIs I can use? Thanks.

I'm do program that's can record sound , how i can but this sound in MP3 file ?

I am pretty new in android application development and I am trying to get on of the rows from a SQLite db to show up as a Listactivity, but this is not working and the program terminates unexpectedly. Here is the code: [CODE]package ankur.test.app; import android.app.ListActivity; import android.content.Intent; import android.os.Bundle; …

Hi everybody! I am pretty close to finishing this program. It is supposed to calculate a person's energy use based on their past and current bill. I am stuck on the calculations and else/if statements. Thanks in advance for any feedback. [code]package craft_week4; //Import scanner library import java.util.Scanner; //Begin Class …

Hey guys..I'm a newbie, so please try to use easy words, as the more complicated stuff may make me bleed out of my ears ;) So I'm trying to make this program where you type in a number using the xxx xxx xxxx style The java program will then compare …

Hello everyone i want to convert pdf file in docx file, which contain table, text as well as image can you tell me any any class or method which help to me to extract in the same way as it pdf file have i m using pdfbox api

Hey daniweb Community! I need help opening up new GUI window by using abstract actions. For example if I hit CTRL + C, i want to open a new window while i already have another window open. Please help! Thanks

Hey everybody! So my problem is the very last part, getting the results of my calculation. So what i've done is created a stack with my very own stack class. The = button is suppose to display the result but i get a runtime error. Please help me out. Oh …

I have to make a small paint program using the GUI. I need to know how to use the combo box. I know I have to make an array with the list of colors but I don't know how to add it to an action listener and choose the items. …

[B]Ok so i have a program using JFrame when ever i add more than 2 classes in the frame one disappears? How can i add more than 1 class with one of them to dissappear?[/B] [B][I][U]Tester Class[/U][/I][/B] [CODE]public class TestYourFace { public static void main(String args[]) { JFrame frame = …

Hello :) I am creating a simple client/server file sharing application which I run on same computer. Mine. :) I wish to make the client be able to get a certain file by letting user type "get filename" in the console. When they do, and the server responds, the server …

I'm having trouble figuring this out. I have 3 jlists and each one has a textbox and a "add" button so the user can enter text to be added to the list. I have read probably a dozen webpages or forum posts on this and all have pretty much the …

hi there, i want to implement a server that receives voice packets from many clients then send these packets to all the clients so that the clients are communicated to each other through the server. how i can send the received packets to all the clients? any good tutorials or …

hello there. i have a two dimensional vector. int numbers[][]=new int[5][4]; i want to find if elements of row numbers[1] are equal to elements of row numbers[2]; i wrotted this code; for(int i=0;i<5;i++){ for(int j=0;j<4;j++){ if(numbers[i][j]==numbers[(i+1)][j]{ System.out.print(numbers[i][j]); } } }

hi i have a problem with my interface,i want to I want when I hit the button, the progress bar goes off, so I have not found where is the problem in my code is that any one can help me and thank you. import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JProgressBar; …

Am programming in java to create a game for snake and ladders.. I decided to keep the numbers in grid and now i want to place the snakes and ladders on the design .. I dono how to do that .. Can any one help please .... Thanks in advance..

Hey all, I'm trying to install the Android SDK to work with Eclipse. I am following the instructions given on these websites: [url]http://developer.android.com/sdk/installing.html[/url] [url]http://developer.android.com/sdk/eclipse-adt.html#installing[/url] I'm using Eclipse Indigo, and everytime I try to add the ADT Plugin I get the following error: Cannot complete the install because one or more …

I'm trying to read in the following text file: Jim Nasium mgr Fitness & Leisure 45000 Lazy Susan mgr Home Furnishings 55000 Gene Theory mgr Fine Jewelry 10000 And I have the following code: public abstract class Employee { private String name; private double grossPay; private double netPay; private final …

Hello. I was writing a java code for class and I was unable to figure out how strings and sub-strings work. Can anyone provide some insight on the program. Here is the problem: Given a bit string expression, such as 10110 OR 11101, evaluate it. Input: Each string represents a …

I know this is a pretty silly question, but what is exactly an object instance variable? To explain what I mean, take two classes:- [CODE=Java]public class Duck { boolean hasAtail; double height; public void go() { System.out.println(hasAtail + " " + height); } } public class DuckTestDrive { public static …

i have a username and password login box when i send data to the socket its fine but when i print the same data from socket then extra bit is added a head of username. why is it so...please suggest

how to include database files into my source code package.

when i run my code using IDE it run fine but when i run it using command prompt it show following errors Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\Administrator>cd\ C:\>cd bank2 C:\bank2>javac *.java CurrentTransaction.java:2: error: package com.mysql.jdbc does not exist import com.mysql.jdbc.Connection; ^ CurrentTransaction.java:3: …

import javax.swing.*; import java.awt.*; import java.awt.event.*; public class TheatreRevenue extends JFrame { /** * */ final double percent = .20; double adultCost; private JTextField label2; private JTextField label4; private JTextField label6; private JTextField label8; private JButton button1; private final int WINDOW_WIDTH = 400; private final int WINDOW_HEIGHT = 200; /** …

Hi , I have speech synthesizer java program. It is running fine when i run it from netbeans. But when i build the project and run the jar file , it's not working. The entire program is running fine in the jar file (i.e displaying window , doing stuff etc) …