[java] Forum Topics

Oh boy They ust be tired of me now. My trouble: I have two ArrayLists of custom classes. ``ArrayList<Subject>` **a**` ``ArrayList<Student>` **b**` Within those custom classes are other custom classes which themselves have primitive data types as well as an ArrayList of other custom classes. It's a big circus going …

Hello, I am new to visAD library. I am trying to plot a 'lowerTerrain.nc' file in visAD. But its longitude(-180 to +180) and latitude(-80 to +80) ranges are displayed automatically in -150 to +150 for longitude range(X axis) and -90 to +90 in latitude range(Y Axis). I have tried this: …

hello good people, i am trying to make a small program that takes input from 4 text fields and adds them to the database(i am using mysql through wamp server) and some other database operations. my Exit and Clear buttons are working. I am using Swing class but have done …

I want to make and If statement which will work when a double "credits" is between 1 and 9. But I'm not sure how to. Will If (1 <= credits => 9) Then Work?

hey buddy's i had one problem in servlet in jsp program. Exactly i'm getting this error, why i'm getting this error and how to solve this error., Have some tips: thanks in advance.,

hey buddy's, i'm creating the program of employee details and i will inserted the fields are ADD,UPDATE,DELETE,EXIT,. I hope the all thing to find the exact solutions but, particular one thing only, that was UPDATE and these are the following some tips and code: 1.the input is not going store …

Hello Daniweb, I am creating a project (using NetBeans for GUI) for my Data Structures and Algorithms course. The gist of it is as follows: -Take 7 letters as input -Display a valid word as output (And later, when this issue is hopefully resolved, several words) Basically a software one …

Hey guys, I've been trying to get this to work. don't know how. <link rel="stylesheet" href="../js2/css/smoothness/jquery-ui-1.10.4.custom.css" type="text/css" /> <script src="js/jquery-1.9.1.js"></script> <script src="../js2/js/jquery-ui-1.10.4.custom.js"></script> <script type="text/javascript"> $(document).ready(function() { $('#box').dialog(); }); </script> <?php echo("<div id='box'> Password changed </div>"); ?> It doesn't workk somehow, can anyone help me?

Hello good day. I am having trouble letting my listeners wait on each other. I have a 1. JComboBox 2. JList - groups 3. JList - students The choice from the JComboBox, clears and updates the groups JList by way of an actionlistener. The ListSelectionListener for the groups JList, then …

Hi Team, Im reading collections and there is a topic called Backed Collections. I could not understand the output below . Please throw some light on it. TreeMap<String,String> map = new TreeMap<String,String>(); map.put("a","ant"); map.put("d","dog"); map.put("h","horse"); SortedMap<String,String> submap; submap = map.subMap("b","g"); System.out.println(map + " " + submap); map.put("b", "bat"); submap.put("f","fish"); map.put("r", …

DatagramSocket SERVERSOCKET = new DatagramSocket(9999); byte[] receiveData = new byte[2000]; while (true) { DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length); SERVERSOCKET.receive(receivePacket); String LINE = new String( receivePacket.getData()); InetAddress iPAddress = receivePacket.getAddress(); int port = receivePacket.getPort(); } Ok I have this right now, I have been googling, yet I do not know …

hi, I have gui with layered pane and four buttons two buttons are above the layered pane and the two buttons are at the left side of the layered pane.the user can controll the size of the GUI but the proplem is that the buttons size doesn't change I want …

hello,my code is below mention, bt in this my eraser button doesnt show me any cursor in drawpad.. thanxxx in adva import java.awt.BasicStroke; import java.awt.Color; import java.awt.Cursor; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Point; import java.awt.RenderingHints; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.awt.event.MouseAdapter; import …

How to print xls or xlsx file to printer in java ? Is there any API or any reference ?

Dear All, I am reading Generics, below method is confusing. It clearly mentioned in the Method parameter that it should accept only List. But when i give ArrayList as Argument it compiles. It should be only List right? eventhough Arraylist is an implementaion class. below is the code PLease explain. …

It is relaed to the thread i posted a while ago. Before I edited the model of my table, it was working properly, but when i added some columns thats when the problem came out. Everytime i click the button that will open this window, it goes blank. Only a …

public static String DecBin(int nbr) String resultat=""; String decbin=""; //String temp; int rest; //temp=""; while(n/2>0) { rest=n%2; //temp=temprest; String rest1=Integer.toString(rest); resultat=resultat+rest1; } for (int i=resultat.length();i<resultat.length()-1;i--) decbin=String.valueOf(resultat.charAt(i)); return resultat;

Alright, so I have been coding a Ceasar Cipher in Java and I have the encrypting working, However, I cannot seem to find my problem decrypting. Here is the code, I thought just by revearsing all the operations it would decode it, but that doesnt seem to be the case. …

Hi! I am trying to make a small application with google maps! I have successfully addded few points on the map using xml output to php from mysql database.. function load() { var map = new google.maps.Map(document.getElementById("map"), { center: new google.maps.LatLng(38.99,22.49), zoom: 7, mapTypeId: 'roadmap' }); var infoWindow = new …

I am planning to create a table where everytime i add a row, a checkbox inside the table will also be created, will that be possible? And i am using window builder. If it is possible, can you give me some instructions how to do it? I did my research …

Write a program that simluates a game of dice. In this game, players take alternate turns rolling two dice. On each turn, they record the sum of the two dice and add this to their total. If a player rolls a doublet (both dice have the same value), then the …

I have recently shifted from c# to try Javafx2. I am also new to this forum. I have been stuck trying to implement internal frames in Javafx. I stumbled upon this link: http://stackoverflow.com/questions/17673292/internal-frames-in-javafx I have managed to add jfxtras 8 jar file to my project as well as in scene …

import java.awt.*; import java.applet.*; public class Neko extends Applet implements Runnable { public static void main (String args[]) { Image nekopics[] = new Image[9]; Image currentimg; Thread runner; int xpos; int ypos = 50; public void init() { String nekosrc[] = {"right1.gif" , "right2.gif" , "stop.gif" , "yawn.gif" , "scratch1.gif" …

I'm trying to implement an algoirthm descirbed here: http://pub.uni-bielefeld.de/luur/download?func=downloadFile&recordOId=2497720&fileOId=2525546 The purpose of that algorithm is to create a concept hierarchy based on a document corpus. For instants, a "Dog" concept would be a child of the "Animal" concept in such a hierarchy. To the point, I've come accross a peice …

this front page: Form.jsp <html> <head> <title> Data Inserting Form </title> <meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> </head> <body> <h1>ENTER THE EMPLOYEE DETAILS</h1> <form action="./Insert.jsp" method="post"> <table cellspacing="5" cellpadding="5" border="5"> <tr> <td align="right">Employee Name:</td> <td><input type="text" name="EmployeeName"></td> </tr> <tr> <td align="right">Employee_id:</td> <td><input type="text" name="Employee_id"></td> </tr> <tr> <td align="right">Nationality:</td> <td><input type="text" name="Nationality"></td> </tr> …

I am using NetNeans I have a JPanel that is supposed to show some already input data along with a progress bar while the remainder of the program carries out some lengthy processing (about 1 minute long). Once the processing is done, this same JPanel is supposed to be updated …

I think I have a cluster of a mess here and was wondering if someone could help me in the right direction. I am trying to write a small program that will calculate the gain and/or loss of the sale of stock. The program will ask the user for the …

Hello, im trying to get the answers from the secound array but it takes just the last question and answer hers is the code: search.setOnClickListener(new View.OnClickListener() { String[] questions = { "http", "arp", "asd" }; String[] answers = { "HyperText Transfer Protocol", "Advanced Research Project", "asdasdasdasdasdasdasdasd." }; @Override public void …

I have just started trying to learn Java, and i am currently following a tutorial series on youtube([Java tutorial by Derek Banas](http://www.youtube.com/watch?v=rGlJiUO-dZA)) it seems like a good series so far! but i have been going along with him and typing it out, then afterwards replacing my copied code with his …

Hi Team, Im reading Collections. It is mentioned that while intialising priority queue, it uses natural ordering by default. But my output is not like that. Below is my code and output. public class BackedCollections { public static void main(String[] args) { PriorityQueue<Integer> pq = new PriorityQueue<Integer>(); pq.offer(3); pq.offer(1); pq.offer(5); …