32,199 Topics
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| | Hi Team, I have two java Files 1. Print (Package A) 2. Apple (Package B.C) (Jave file is inside C:\Z\A\B\C\ I have compiled and kept Print.class file inside C:\Z\A\B\A\ Now i have made a Jar file of Print.class named MyJar.jar and kept it in Z\A\ When i try to compile … |
| | I'm not sure how to normalize the values to get the output that I want. I created a method called normalize. The values come from my txt file. The output I want is - Quizzes: 66% Labs: 88% Lab attendance: 81% Midterms: 91% import java.io.*; import java.util.*; public class FindGrade …  |
| | I am trying to finsih this coding and something is missing and teacher has asked me to init the doubles. I am struggling with the finishing touches of this program. import java.awt.*; import java.awt.event.*; import javax.swing.*; /** * The MenuWindow class demonstrates a menu system. */ public class CellPhonePackage extends … |
 | I want to make a program to accept strings and make a pyramid of strings, but I cant make the right loop, I have the logic: But this seems to make only half- pyramid, can somebody help me with the right loop import java.util.Scanner; public class Stairs { public void … |
| | Hi , i have done a project in servlet , i didn't get any error in the coding and console page . My problem is that datas are not added to the database. Below are my files. What i'm doing wrong ? StudentRegistration.html <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" … |
| | Hi all - I am writing a program that uses two classes: One class is the InfixtoPostfix, which is actually the class that changes expressions from infix to postfix. (Example: ( A + B ) * ( C - D ) to A B + C D -*. The second … |
| | Hi Team, Im preparing for OCJP and in one of the sample question is below Three version of MyClass.class exist on a file system 1. /foo/bar/ 2. /foo/bar/baz 3. /foo/bar/baz/bing And the system class path includes /foo/bar/baz And this is the command invoked from /foo java -classpath /foo/bar/baz/bing:/foo/bar MyClass Which … |
| | I have a studied java and self taught on netbeans. i would like to use open source APIs and packages for writing heuristics and machine learning programs but dont know where to start. How to learn to use a new API ? Like genetic algorithm package or metaheuristic package? I … |
| | my code: class A{ Vector<String> s = new Vector<String>(); } public class Vec { /** * @param args the command line arguments */ public static void main(String[] args) { A a = new A(); a.s.add("String1"); a.s.add("String2"); a.s.add("String3"); a.s.add("String4"); a.s.add("String5"); Vector<A> vecA = new Vector<A>(); vecA.add(a); System.out.println("Size of vector is "+vecA.size()); … |
| | I am trying to get 20 images displayed on a jframe in jlabels using a gridlayout. I have added a while loop but still i am only am to see 1 image, please can you help me to display more than image in jlabels on a jframe? setSize(600, 600); setDefaultCloseOperation(HIDE_ON_CLOSE); …  |
| | hai to all iam decided to develop student information report so i decided to the gathering results from site and those converted to either .pdf or .xls file so i requested to code for to obtain the student reults from the any website thanking you sir |
| | Im using hibernate and i tried to do the following session.get(Company.class, 1); After i executed the statement above i got this strange select statement generated by hibernate Hibernate: select company0_.Company_ID as Company1_31_4_, company0_.version as version2_31_4_, company0_.Address_ID as Address5_31_4_, company0_.Company_Code as Company3_31_4_, company0_.Company_Name as Company4_31_4_, company0_.Phone_ID as Phone6_31_4_, address1_.Address_ID as Address1_0_0_, … |
| | Hi, could some one help me in resolving this issue. Below is the code in which i am trying to call open Calais API to extract the keywords from the content by using the lisence key. package com.clearforest; import java.rmi.RemoteException; import javax.activation.DataHandler; import javax.mail.internet.MimeMultipart; import javax.xml.rpc.ServiceException; public class CalaisDemo { … |
 | Hey Guys, could you tell me the different ways to write throw method (Exception Handling) in a program.. I mean like we can write BufferedReader in many ways (2 ways so far i've studied).. eg; 1. BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); 2. BufferedReader br; { br = new BufferedReader(new InputStreamReader(System.in)); } |
| | Assignment 1: Bank Account Class You are hired by a Canadian bank in order to develop a java application for processing withdraw and deposit transactions. The application enables staff of the bank to create new bank accounts, to process account transactions and to display the balance of a particular account. …  |
| | class A{ Vector<String> s = new Vector<String>(); } public class Vec { public static void main(String[] args) { A a = new A(); a.s.add("String1"); a.s.add("String2"); a.s.add("String3"); a.s.add("String4"); a.s.add("String5"); Vector<A> vecA = new Vector<A>(); vecA.add(a); System.out.println("Size of vector is "+vecA.size()); // here i am getting size one a.s.clear(); a.s.add("String6"); a.s.add("String7"); a.s.add("String8"); …  |
 | Should have the Menu: [1] Empty WaterGlass [2] Add Water [3] Remove Water [4] Display WaterGlass [5] Exit ** Note: The program will only end if the Exit Menu is chosen. java program Sample WaterGlass: Current Level: 10 *** --- --- --- --- --- --- --- --- --- --- *** …  |
| | I've created connection on java when I run the programe I get successful message , however in the service tab next to the project tab I can't see the my database connection under the database // inside method Connection connection = null; String url = "jdbc:oracle:thin@serverName"; string name ="test"; string … |
 | Hello all, I was wondering on how I would extract a number out of a String after a specified character. For example, if String s = "22+5+35" , how can I extract and store the numbers 22,5, and 35 in a ArrayList?  |
| | When writing my code in Textpad, I get the following error when I go to compile it in Java... Tool completed with exit code 2. I need help - this is all very new to me. |
 | The video tutorial for file handling in java is made by me, here is the link http://www.youtube.com/watch?v=MkAKrAXBP0A |
| | Alright so I'm coding a Quadratic Equation Solver to help with my Math Class. However the teacher requires each calculation to be written out. I have the solver working, however I'm not sure where to start when it comes to printing each step. I know I will need to `System.out.println()` … |
| | Hi, I am trying to a game, and i wanted to add my images to mysql. I have managed to save and retrieve the images. I have written a code which allows me to only retrive 1 image on my jframe in a jlabel from the database, i am a … |
| | Heya! Okay, so I was able to register without using javascript. I am able to update my profile without javascript. I can login without javascript, and even send private messages without javascript. I can definitely make posts without javascript. Somewhat puzzlingly, I'm unable to *respond* to posts without javascript, which …  |
| | Can anyone help me to improve my code so i can add more than image to my sql database. The code i use is below: Connection connection = null; String connectionURL = “jdbc:mysql://localhost:3306/mydb”; ResultSet rs = null; PreparedStatement psmnt = null; FileInputStream fis; try { Class.forName(“com.mysql.jdbc.Driver”);//.newInstance(); connection = DriverManager.getConnection(connectionURL, “root”, … |
| | What I want to do is add items to an ArrayList then print. Each item needs to either be selectable, or non selectable. The list needs to be interactable with the arrow keys. I have the list being printed out, and thats about it. Heres my source, I have no … |
| | this is image of error... |
 | I am working on the Add em up project in the Blue Pelican Book. I would apreciate some help on figuring out how to get it to do subtraction to get the sum of 1249. Here is my code so far: `import java.io.*;` `import java.util.*;` `public class AddEmUp `{ `public … |
| | Hi evryone! :) I'm a complete beginner in Java and today i'm found my self stack while trying to solve a problem. Basically what i have to do is to write a program that sorts three integers. The integers are entered from the input dialogs and stored in variables num1, … |
| | hello friends, we have stuck with one problem while doing program of mail api. we have doing unread mails via mail api,but its not perfectly working. There is an problem in reading content of (multipart type) of mail. it will work on Text/Plain type. Following is my code.please let me … |
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