I want to create a program which contains a list with 5 items and a button on the first display. The desired option is chosen from from the list and the button is pressed. On pressing the button it must open a new form which corresponds to the chosen item from the list.
View RepliesI am using Java 1.6, I have this class ....
import java.util.ArrayList;
import java.util.List;
public class TestDrive
{
public TestDrive()
{
super();
[Code] ....
What is the most efficient way to group the preferences of the same type, In other word I want just a print statement to print this line.
BREAKFAST(Eggs,Milk),SPORTS(Basket,Tennis),....
I have the following code. how can items be added to that list?
private List<IComponentNode> comp;
interface IAAAView {
// returns component with given code or null
IComponentNode findComp(String a);
// returns component with given renderer or null
[Code] .....
I'm having trouble completing my homework. The problem:
>Suppose that you want an operation for the ADT list that adds an array of items to the end of the list. The header of the method could be as follows:
public void addAll(T[] items)
>Write an implementation of this method for the class LinearLinkedList
At first this seemed like an easy problem to me. This is the solution I came up with:
public void addAll(T[] items) {
int length = items.length;
for(int i = 0 ; i < length; i++){
this.addLast(items[index]);
}
}
However, one of the requirements for the assignment is that we're not allowed to use the addLast method. how else to insert items to the Linked List without this method. These are the user-defined LinearLinkedList and ListNode classes we made during class:
**LinearLinkedList**
// Linear linked list class
import java.util.NoSuchElementException;
public class LinearLinkedList {
[code]....
I am trying to create a GUI interface in swing which consists of four classes: a GUI class, which creates a main JPanel, a label, and a JList, which it takes from the second class, a MovesList class that contains a JList and the stuff needed to interface with it. It also has a main class, which basically just creates an object of the GUI class for the main window, and an Other class from which I would like to be able to add an item to the JList. I created methods in the MovesList class to get each component (like getMoveslist, or getMovesListScrollPane), which I then used to create the JList in the GUI class. I also created an addMove method so that I can add an item to the JList from any class through a MovesList object. However, this addMove method only works when called from the GUI or MovesList classes -- it does nothing when I collect from the Other class.
Here is my code:
//Main class
public class TestProject {
public static void main(String[] args) {
GUI mainWindow = new GUI();
mainWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
[Code] ....
When I run this code, I get a window with a JLabel that says "Moves," and a JList that contains five elements -- test 1-test 5, but not a sixth "test from other class." ( using the add move method ) However, when I click on the window, the addMove method is also called, and successfully adds "test 6" to the list.
Im creating a program that has about 20 different input forms. Fairly standard forms but what i need to know whats the easiest way of creating forms. Is there some way of using templates or some plugin to quickly generate forms.
View Replies View RelatedI have a NetBeans web project on Tomcat 8.0.15, MySql (with Jconnector), Servlet/Jsp. I need a secure login!!! There is a login page. On successful login, if it is admin, servlet redirects to the admin page, if username is of a standardUser, the servlet redirects to the main page.
For now nothing works. The page is not redirected by servlet, on submit button press the error.html appears and shows response.getStatus() is 0!!! I tested(without login) servlet for username/password check against the DB and it works.
So Here is my code files: login.jsp:
<form id="loginForm" method="POST" action="j_security_check">
<input name="j_username" id="j_username" type="email" value="test.admin@vividspectradc.ca"></input>
<input name="j_password" id="j_password" type="password" value="test"></input>
<input id="loginSubmit" type="submit" value="Login"></input></form>
[Code] .....
Is context.xml - realm needed? Why error.html appears and shows response.getStatus() is 0?
So, how to create a secure login? How j_security_check connects to my MySql database!? - maybe that' the problem error page shows after login...?
I have a date sch_date_time=01/02/2014 08:00
And when i am doing SimpleDateFormat sdf = new SimpleDateFormat("dd/mm/yyyy HH:mm");
date1 = sdf.parse(sch_date_time);
when i am printing date1 it is printing as Wed Jan 01 08:00:00 IST 2014,but it should be printed as Sat Feb 01...
Book says static methods can not access object instance variables. But the following code successfully prints out
ba.balance = 10
instance var = 5.
It seems like Static method is able to access the instance variable of another class, as well as the instance variable of main class. What gives ?
class InitProcess {
public static void main(String[] args) {
mymethod();
}
int x = 5;
[code]....
I have the simple table below:
currency amount
€ 2.0
$ 4.0
£ 5.0
How could I store the currency and amount in an array? A 2x2 array would do this but how to store them and retrieve them is the challenge. For example, I have a method that asks the user for two inputs, the currency and the amount and using the array as a chat table where I could map the currency to the the currency input entered by the user, I could do some calculations with the amount entered by the user. how I could represent the 2x2 array?
This is one of the most interesting programmes in java Number-Word..The programme give the alphabet output of a no. inserted between 1 and 10,000
Example :
Input:Enter a word less than 10000
5457
Output:Five Thousand Four Hundred And Fifty Seven
Code:--
import java.util.*;
Java Code:
class num2word
{
public static void main(String args [])
{
num2word ob = new num2word();
ob.check();
}
void check ()
[code]...
Java code "To translate any language(lang like hindi,tanil etc..) entered as plaintext into unicode ....
View Replies View RelatedI am searching a XMI parser in java code that read an xmi file and print classes with related attributes.
View Replies View RelatedI want to implement session timeout functionality ...so with web.xml file i can specify session timeout ..say 30 min.. Now with filter is it possible for me to redirect the request to login page after session is timeout say after 30 min... What are the other ways...??
Also i want to know whether timeout setting in web.xml will overweight the application server timeout ... I am using struts 1.0 and hibernate...
I've created a jar file from my java project and it's not working. I've followed this video step by step and it's not working.
View Replies View RelatedI have created a java gui application and I need to communicate through the serial port. I would like to open the serial port in the beginning of the application and then close it when the applications closes. The problem that I am having is that I created a method to open the serial port in the main function but I can not close the serial port on exit off the application. Is there away of having the serial port be setup so that all methods can access the serial port.
View Replies View RelatedI've been working on this code since a couple days and I just can't find what's wrong here. I have make an image open when the JMenu m6 button is clicked but it just doesn't work. I've tried a bunch of different codes but when I click on the desired button, nothing happens. Here's the code :
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.Dimension;
[code]...
I'm now working more and more on the go and although I can carry my Macbook Air without too much trouble I've just been given an iPad Mini by work and it's far easier to do what I do with that on the move.
For work I need to open around 35 different websites at one time 4/5 times a day on the move.
With my Macbook that's no issue, as I can just use the open all function of my bookmarks, but on the iPad there is nothing that will allow me to do this.
I have looked online and a few people have had this issue and fixed it using the below Java method:
Creating a link that when clicked sets off a Javascript function that contains several window.open("url"); Clicking the link opens each website in its own tab.
my code uploads a file to server.it works perfectly. however when i try to access it through href it says file not available.but the file is present.
Also,if i make any changes to the file like renaming tit etc the link works. My code is
<tr valign="center"><div align="left">
<td align="left"><B><font size="2" color="#4d5075"> File Already Uploaded</font></B></td>
<td><a href="cml/coml_upld/mfile_upload/Flashcard.pdf" >Click Here to view Uploaded BBU</a>
</td>
</tr>
my file upload code is
<%@ page import="java.io.*"%>
<%
try {
String saveFile = "";
String saveFile1="";
String contentType = request.getContentType();
if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0))
[code]....
For some reason the two JOptionPane message boxes at the end of my code don't seem to open when I run the program.
package assg2.kevin;
import java.awt.HeadlessException;
import javax.swing.*;
import java.util.Arrays;
import java.util.Random;
public class Assg2Kevin {
[Code] ....
I want to get the time elapsed while opening a pdf file . I am not able to find a way to do it using PDFBox, Is there any way using which I can create a PDDocument in my java program and use some API to launch the PDF file and measure the time elapsed in opening it.
View Replies View RelatedWe are creating a quiz as a school program, we are using netbeans and we have a little problem. The problem is that our JButton opens a new JFrame in a new window and we want it to stay in the same window. The code we are using is:
private void PlayButtonActionPerformed(java.awt.event.ActionEve nt evt) {
Question1 s = new Question1 ();
s.setVisible(true);
}
Is it possible to make it stay in the same window?
My program has just "File" and "Help" in the menubar when "File" is clicked, there is an exit item that closes when clicked.i want the "About" item in "Help" to open a new window, what's wrong with my code?here is it:
import javax.swing.JFrame;
import javax.swing.JDialog;
import javax.swing.JPanel;
import java.awt.FlowLayout;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JTextField;
import javax.swing.JLabel;
[code]....
I'm going through a file (MySQL dump) and I wish to take the SQL and create individual files for each table (as opposed to what I do now, which is just run through the whole thing).
<code>
BufferedReader myDumpfileReader = new BufferedReader(new FileReader(tfDumpfile.getText())); BufferedWriter myDumpfileWriter = new BufferedWriter(new FileWriter("/users/linehanp/mydb/bin/tgac_dump/Vanilla.sql"));
while((dumpFileLine = myDumpfileReader.readLine()) != null){ DoStuff();
MyDumfileWriter.write("Whatever");
}
myDumpfileReader.close();myDumpfileWriter.close();
</code>
Now, this all works fine - but what I want to do is create a separate .sql file for each table.
However, I can't figure out the best way to do this - how do I create a new FileWriter (or instance of whatever class is required) as I'm going through the while loop? That or pointing the same one to different files as I go through the loop.
It can be assumed that the file may exceed RAM - I want to do it line by line rather than slurping the entire file as a string and "cheating" that way.
There appear to be many (a bewildering amount of) I/O options and I'm just unsure.
want to open a directory from java program in Ubuntu When i use exec(path) it says access denied.
View Replies View RelatedWhen running a Java GUI is it possible to stop black system window from opening as we'll
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