35,618 Topics
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| | My question is... what is the int times for? i dont understand what i am supposed to do with it. Here are the instructions about this method: String[] generate(String symbol, int times) In this method you should use the grammar to randomly generate the given number of occurrences of the …  |
| | I am writing a program that reads text but must ignore case, spaces and punctuation while evaluating a string for palindrome. When I use the following the case issue is solved. [CODE] String str = ""; if (str.toLowerCase().charAt(LHS) != str.toLowerCase().charAt(RHS)) [/CODE] ...but when I use the following I get IndexOutOfBoundsException … |
| | I have an application I'm making... And it has a canvas in it. The problem is, on the y axis, my canvas is offset by ten pixels downward and I can't figure out why. You can see what I'm talking about in the screenshot. Do you know what's wrong? |
| | Hi, i only know the Java basics and really need help! I have a class called temporaryHolder which holds an arrayList of 54 cards. However, I need to get elements out of this arraylist and need to add them to stacks in another class. Q1) How can I access all … |
| | Hi! I've decided to open a new thread for discussing the problem with uploading a file to a SUB-FOLDER at the FTP Server. So, I'm using Apache Commons library and I can upload my file to the Home Directory of the FTP server. However, if I want to upload it … |
 | I have this problem when i create a sortable JTable with data load from an ArrayList! My project is Student Management and i add some function like Add/Edit/Delete infomation. With unsortable JTable, add/edit/delete function is ok, but with sortable JTable, when i click on the header of one column, that …  |
| | i am doing a desktop application using netbean6.8 how to show error message if i didnt enter mobile number textbox pls help me.... |
 | Hi everyone, how do i push item with a givin index in a linkedlist. e.g. linkedlist.add(element e, int index); this is my function [CODE]public void push(Student s, int index){ if(isEmpty()){ start = s; }else{ last.next = s; } last = s; size++; }[/CODE] |
| | Hi! I would like to develop a software that will allow me to find a file (using JFileChooser) on a local machine and save it to a remote machine. I know an IP address of the remote machine. Please, give me some explanations or a link to some tutorials regarding … |
| | I want to set up a connection to a Microsoft SQL Server 2005 express on my PC. [code=java] try { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); Connection con = DriverManager.getConnection( "jdbc:mysql://localhost/db1","xxxx","yyyy"); Statement stmt = con.createStatement(); ResultSet rs = stmt.executeQuery("SELECT nume FROM tabel1"); while (rs.next()) { String s = rs.getString("name"); textArea.append(s); } } // Catches any … |
| | Is there anyway to play an mp3 file in java? P.S I'm new here, hello world? |
| | The problem is that when we use multiple threads and each containing System.out.println(). It doesnt print at time according to what i think it shoud On implementing the below 2 codes: [CODE] import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.SocketException; import java.util.concurrent.LinkedBlockingQueue; import java.util.logging.Level; import java.util.logging.Logger; class E { LinkedBlockingQueue<DatagramPacket> li = … |
| | Hi. I can't figure out how to remove an element from an array. will I have to move get the element to be removed and swap it out with the last element and use the pop()? |
| | Hello, I am a current Java student and am having a problem when I run my compiled program from an in chapter lab assignment called "Stock Tracker". I receive a message from a dialog box "Cannot locate sun.jdbc.odbc.jbcOdbc Driver. Class not found exception creating database object. Following are a list …  |
| | [CODE] public class Reservation { private String firstname; private String lastname; private String address; private String name; private int licenseN; private String date; private int daysN; private String type; public Reservation(String f,String l,String a,int lpn,String dt,int nd,String tp) { firstname = f; lastname = l; address = a; licenseN = … |
| | Hi, I have a jsp web application running in Tomcat 6 that uses a set of 3rd party jars. One of the jars is attempting to load a log4j property file by using a relative path. ( \folder\.properties) I have the property file but I need to know where to … |
| | Ok so Im trying to create a constructor that reads input from a text file. Which I got it to do. Then adds the information to a LinkedList. [CODE] public class CourseCatalog<T> { private BufferedReader read; private LinkedList<Course> catalog; public CourseCatalog(String filename) throws FileNotFoundException { catalog = new LinkedList<Course>(); try … |
| | Can anybody help me how to transfer the inputting of my numbers from left to right... Well here is my program.. [code] import java.awt.*; import java.awt.Container; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextField; public class Calculator2 extends JPanel implements … |
| | Hi! I have a project in school about a grocery list...can someone help me make a code for this? I really need it....thank you so much! here's the problem: This application is called the “DAWLIMs Grocery Store”. The team has closed a contract deal to develop an application of a … |
| | I have a tree, and I want to find the depth of it. For example for this tree: [CODE]0 root / \ 1 5 1 / \ 2 1 3 | 3 2[/CODE] It should give a depth of 3. [CODE] public int getDepth() { int maxDepth = 0; if(this.hasChildren()) … |
| | Okay so I have to have write a program that takes website names until you type stop. After that it should count how many websites were entered. [CODE]package website; /** * * @author */ import java.*; import java.util.Scanner; public class Main { /** * @param args the command line arguments …  |
| | Does anyone know how to hack passwords, like Facebook or email through Java? |
| | Hello there, I am trying to develop a web site and I am asking this: Let's say that I own [url]www.mydomain.com[/url]. Now if I type [url]www.mydomain.com/whatever[/url] I want this site to be linked to [url]www.mydomain.com[/url] and pass the string "whatever" as a parameter. So If I type [url]www.mydomain.com/john[/url] the website … |
| | [CODE]public double returnTotalFine(){ if (parkingmeter.returnPurchasedMins() >= parkedcar.returnMinsParked()){ fine = 0; } else if (parkingmeter.returnPurchasedMins() - parkedcar.returnMinsParked() <= 60){ fine = 25; } else{ fine = (25 + (10 * (parkedcar.returnMinsParked() / 60.0))); } return fine; } [/CODE] this is the toString method from the same class as above: [CODE]public String … |
| | Here's the pattern: [CODE]******* ***** *** * ** *** ***** ********[/CODE] Here's the code I used to get only the first part(the up-side down triangle): [CODE] class hourglass { static void pattern() { for(int j=1;j<=4;j++) { for(int i=1;i<=j;i++) { System.out.print(" "); } for(int i=7;i>j;i--) { System.out.print("*"); } System.out.println(); } } …  |
| | Hi, I am using Eclipse Helios in Fedora 10 i386. I am using WebSphere Application Server Community Edition plugin [B][COLOR="red"][COLOR="Red"]( Apache Geronimo 2.1)[/COLOR][/COLOR][/B] in Eclipse. My problem is that , I can not upload a file using [B][COLOR="red"][COLOR="red"][COLOR="Red"]UploadBean ( a very popular JavaBean )[/COLOR][/COLOR][/COLOR][/B]. I am adding the jar files … |
| | Hi, I wanted to know how you can link two list Boxes together. This is what I'm trying to do: [B]I'm creating two list boxes, list box A and list Box B. List Box A is a list of different departments. When the user clicks on a particular department, the … |
| | hey guys, just one question- how do i get netbeans to import a whole folder (containing numerous java files)? the only option i currently get is to import eclipse projects. |
 | [code] package cls; public class main34 { public static void main(String[] args) { for(int i = 2; i <= 100; i++) { for(int j = 2; j <= i; j++) { if(i % j == 0) { break; } else { System.out.println(i + " "); } } } } } … |
| | i am trying to send AT commands on a GSM modem. this is my code.. [CODE]import java.io.*; import java.util.*; import javax.comm.*; public class SimpleWrite { static Enumeration portList; static CommPortIdentifier portId; static String commands[] ={"AT+CMGS=1","AT+CMGS=\"+919007413343\","Hello there"}; static byte[] newline[]={(byte)13,(byte)10}; static SerialPort serialPort; static OutputStream outputStream; public static void main(String[] args) …  |
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