I'm assigned along with two others to make this program for a project.
We need to store data to the program by adding them such as user_id among the 5 criterias that are needed. Lets say I want a new user, I need the program to give me that option and then I would type in the user id and the program would store that data information
As far as I'm aware, boolean, screentokenizer and scanner is involved in the making of this program.
Suppose i am using useBean in one of the jsp to check for the user registration. suppose the url which is hit is simultaneously used by 4 users and suppose object type created i.e. ID is person .When the last user enters the details and submits the details a person has just submitted ,that is person id already created , then how the useBean will work in this scenario.
View Replies View RelatedI want to add search functionality like for City and State ,country.How Can I Implement it.
I am using Java(JSP,Servlets) as my server side lenguage
I have heared about [URL]...
But what are the other ways to add search functionality like custom searchs and other?
(See Attachment Image, what I want to do)
i want to need auto gerneraion user id for registration form using jsp & servlet with my sql database
View Replies View RelatedI want to do a Registration page on some website. i connected to mysql and creating some id like 1 and 2 like this , but i don't want like this. i want to generate v21001 and v21002 to generate on every registration.
View Replies View RelatedI want to need auto gerneraion user id for registration form using jsp & servlet with my sql database.
View Replies View RelatedI am trying to get a user to enter an integer (registration number) between 500 and 5000. if it is below 500 and over 5000 the user should get a prompt "invalid number" and "non-numeric character". See my code below. it is not working when i enter invalid numbers.
import java.util.*;
public class Infomation{
public static void main(String args []) {
Scanner in = new Scanner(System.in);
System.out.print("Student Number:");
int sn=in.nextInt();
[Code] ....
code used to create watermark in text-field of any registration page?
View Replies View RelatedI am trying to make a pyramid from blocks . I know that for example to make a bigger block from small blocks you write something like :
for(int i = 10 ;i <=1 ; i--){
for (int j= 10 ;j <= 1 ; j--) {
< statement to create block where you use both i and j to define the location of each block>
}
}
but i cant seem go grasp how to make a pyramid , so far my best effort is :
int i =10 ;
while (i >=1 ) {
for( ; i>=1 ; i-- ){
< statement to create block > }
}
At the moment visually i don't get a pyramid but it might be because of other issues and not because of the while and then a for inside it approach .
My approach is correct and if now what would be the correct one to create a pyramid from smaller blocks ?
I have to write a program for class that basically uses Paint Component to draw a bunch of rectangles to look like a building then have them change color randomly. I am stuck I can't figure out how to make it draw the rectangles in rows and columns to look like the building i can make it display multiple squares randomly however but thats not the assignment.. here is my code
package labBuilding;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JPanel;
@SuppressWarnings("serial")
public class Building extends JPanel {
[code]....
I'm having this where i'm trying to return a JPanel with tempPictures but only if they aren't already filled with "actual" pictures. However this causes problems because your never shore that the if statement will execute. I tried adding an else statement but i cant return null i must return a JPanel;
private JPanel buildTopShelf() {
if(myMediaHandler.mediaList.size() < 6) {
JPanel mediaPanel = new JPanel();
mediaPanel.setOpaque(false);
mediaPanel.setLayout(new GridLayout(1,6,22,0));
mediaPanel.setBounds(90, 14, 1020, 210);
[Code] ....
My multi threaded application processes and loads records into an ECM repository. For reconcliation purposes , I am trying to build an XML format report with the results of the processing per record, while processing is underway per thread. The method below is called from every thread wvery time its ready to append an element to the DOM with the status.
public void writeReportLine(Element rptLine) {
// Write output to report file
synchronized (XMLReportHandler.class) {
reportOutput.getDocumentElement().appendChild(rptLine);
}
}
After all processing completes, the below method is called only once by every thread to write to the File on the file system:
public void writeToReportFile() {
synchronized (XMLReportHandler.class) {
try{
//write the content into xml file
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(reportOutput);
[Code] ....
The problem is that when under load, the threads just seem to hang while the transformer.transform(source, result) call keeps getting executed until there is an interrupt of some sort. I was able to examine a section of what was appended and it was status for records that had finished processing very early in the process based on my application logs. Once an interrupt is recieved , it looks like the threads recover.
building a game. the game is all about the multiple times table with levels. easy medium and difficulty. I dont even know where to begin and what is the codes to use or even the platform. what websites can be access etc and what is the big deal with code tags.
View Replies View Relatedi'm totally new to Java.I'm making a small text based RPG and this is what i've come up for now.
Java Code:
import java.util.Scanner;
class Main {
public static void main(String args[]){
Scanner input = new Scanner(System.in);
Player playerObject = new Player();
[code]....
My thing is that i want the user to enter 'Caucasian' or another race in the console below and i want it to be saved in a variable or something else in the Player Class that i can later use it in texts or something else. My question is how can i do it?
I tried like 'int Mongoloid = 1; int Caucasian = 2;'
And the same with the others, and after that i tried to use them with the Switch Statement but it did not work.
I'm trying to build a binary tree using two arrays I'm given, one is inorder and the other is postorder and I have to construct the tree based on that. I understand the strategy I need to use- the last element of the postorder array tells me the root node, and wherever the value of that node occurs in the inorder array is where the tree is split. I can then apply this idea recursively to build the tree. For whatever reason though, I keep getting stack overflows.
Here's what I have so far:
public static class TreeNode {
char val;
TreeNode left;
TreeNode right;
TreeNode(char newVal) {
val = newVal;
[Code] .....
Every year, she has to plan when her employee's can go on vacation for the summer holidays - MANUALLY. It takes weeks to solve the puzzle, because she has several kinds of employee's hired, with different skills. And at all days there must be X amount of employees with skill1 at work, plus Y amount of employees with skill2 etc, and they also need special "off-days" in comparison to when they last worked and so on. It's quite the math puzzle.
I've worked a little with C#, and built a prototype of a Support System (Ticket based), so I got the basics down of programming, and I know Java and C# are quite alike, so I don't think making the switch will bother me that much.
The program should be easy to use for her, so it needs a visual calender that can be interacted with, and it should also be easy to see which employee is at work at that date and so on.
Will it be hard for me to build this kind of Calender, that allows the interaction I want?
Any open-sourced projects, or libraries that will make my task easier?
I plan on using NetBeans IDE for this project.
I'm trying to build a program that would present the user (well...me) with a rather large list of various check boxes (and combo boxes, etc...but for sake of the question I'll limit it to check boxes) and the selections would not only need to be stored in some way so they could be reloaded, but also they would need to have the "data" used to build sentences.
For example, part of the form would have a checkbox list like:
Emotional Issues -
Emotion 1, Emotion 2...Emotion 40
Then, at the end of the form I would be able to save client, load client, or generate report. When doing the generate it would output something like:
"Client's first name reported having emotional disturbance in areas of 'Emotion 1', 'Emotion 4', and 'Emotion 12'."
There, of course, would be probably several hundred check boxes, combo boxes, etc. throughout this program building a rather complex "report" when it's all said and done. So where I am stumped in on the methodology or approach that would be best for getting, storing, retrieving, and outputting this information.
Implement an applet that display historical facts. The applet will include facts from october 28 to december 4th to test the applet.
What is the best thing to add text in my GUI - JLabel, JTextArea? I am trying to display different words on my csFacts. Once a user click button yesterday and button tomorrow?
public class Facts extends JFrame implements ActionListener{
private JButton button1,button2;
private JPanel panel;
private JLabel label;
TextField ri = new TextField(50);
private void createGUI(){
setDefaultCloseOperation(EXIT_ON_CLOSE);
[Code] .....
The goal of this software is to provide a web interface which must be able to manage the Quagga routing daemon. For those who don't know Quagga, the only interface it provides the user is its built-in cli. My project must convert web events to commands and vice-versa. how I'm going to maintain quagga's configuration state synchronized with JSF's managed beans. The example below shows the commands one must run on quagga's cli in order to add a BGP neighbor:
neighbor 10.0.0.1 remote-as 65535
neighbor 10.0.0.1 description "Just a Test"
neighbor 10.0.0.1 next-hop-self
neighbor 10.0.0.1 soft-reconfiguration inbound
write memory
In order to represent this piece of information in my project, I was thinking about mapping this to a class:
public class BGPNeighbor {
private String ip_address;
private Integer asn;
private Boolean next_hop_self;
private Boolean inbound_soft_reconfiguration;
}
With this I would parse the information from Quagga's configuration and map this to classes in my software. I think it's a lot easier to do with database-based software, the problem with this project is that it's not completely database oriented. The information must be fetched from the network, parsed, converted to classes and then they would be available to JSF as managed beans. Any alteration to this classes must be converted to quagga cli commands which must be executed through the network again (telnet).
My assignment was to create a simple form that demonstrates the use of the factory and singleton design patterns. "Use the Factory pattern to ensure that each form input consists of a text label and a textfield. Use the Singleton pattern for the submit button."
Here's what I have:
Form.java file
interface Form {
public void getFormField ();
}
Name.java file (I have a similar files just like this for Address.java, City.java, State.java, Zip.java and Phone.java)
import java.util.Scanner;
class Name implements Form
[Code] ....
It compiles at the moment but I get a null pointer exception in the main method of the FormFactoryDemo file.
public void add(int d){
listNode l = new listNode (d, null);
l.next = first;
first= l;
}
public list Sum2List (list l1, list l2){
//variables
int sum;
[Code] .....
But I have a problem in my first listNode where it ll be pointing to null, thus in the sum2List method the program checks the while condition into false and doesn't go through the loop.
I have the Java Development Kit downloaded in my C file and my book tells me to compile the program I need to open command windowand change the directory where the program is stored. I tried the command cd to change directory and received this message "The system cannot find the path specified."
I checked the Environment Variables on Windows 7 and the Path says: C:Program Files (x86)Javajre1.8.0_31in
This is after many tries and i still can't change directory and i keep getting the same message.
I'm making a stock system for the heck of it,so everything was going great until I hit the loop I am trying to use a for loop to add stock to the stock system,any way the question is maily about loops.How come I cannot declare a variable outside a loop and assign a value to it,for example I can declare as follows and I will not get an error,
for(int i=0;i<10;i++){
System.out.println("example");
}
but in my code(and yes its the only error I get I tested it) I get an error and can only declare and assign a value inside the loop,the reason for this is because I wanted to get the value from another class and use it in the loop ok so heres the code from both classes.
public class mainn{
public static void main(String [] args){
stock first = new stock();
int internal;
internal = first.wanted;
[code]....
it gives me an error at the end class part some syntax error insert "}"..
* Course: IT110 - Introduction to Programming
* Filename: MyCustomShirtsPhase1.java
*
* Purpose: Created a simple online ordering system for My Custom Shirts customers
*/
import javax.swing.JOptionPane;
[code]....
I have the Java Development Kit downloaded in my C file and my book tells me to compile the program I need to open command windowand change the directory where the program is stored. I tried the command cd to change directory and received this message "The system cannot find the path specified." I checked the Environment Variables on Windows 7 and the Path says: C:Program Files (x86)Javajre1.8.0_31in
This is after many tries and i still can't change directory and i keep getting the same message.The book I am using to learn Java is "Java How to Program: Tenth Edition" from Paul and Harvey Deitel.
In my java program I'm changing my IP(using proxy) and sending the request to some sites. Later some point of time, I want to know my current IP address through java program itself. How to get hold of my current IP address? Also which IP address will it show? The proxy one or the original IP ?
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