31,001 Topics
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 | Hi All, im trying to get an example to work on a main class passing variables to a class to then return the value. This is the method for variables to be passed too [code] import java.lang.Math; class CalcTest { private int area; public int getArea(int height, int width) { … |
| | Hi everybody I interested in mobile application ….. and I want to find some ideas to do them I've heard about making some maps for the world , apply office like (word,eccess,powerpoint..etc) and controlling the devices through mobile but actually I did not like one of them .. So can … |
| | Hi All, I have to compile a servlet WebStocks.java. It does not compile in TextPad as it cannot locate the javax.servlet packages. I have done my homework, so I know, that the servlet package I am looking for is loaded in Tomcat in my directory: C:\Program Files\Apache Group\Tomcat 4.1\common\lib\servlet.jar I … |
| | Hai Friends, i want read data from on ejar file to another jar file during runtime with out uisng network connections(like UDP, Tcp etc) and also with out creating external files, is there any way to read data? please help me. |
| | Why the functionality of a java based app with file access and file processing methods valuable for this type of business....? I believe that it is valuable because it allows the business to handle mutliple files from all over the wolrd and process them in a timely fashion. Say for …  |
| | HI i am new to programing in general, currently I trying to learn java, but I am having trouble getting the compiler to work I keep on getting this message " 'javac' is not recognized as an internal or external command, operable program or batch file. " I have been … |
| | Hi, I have an application which is about harvesting the data from html pages, contains an interface. I had implemented it for (like customization of it) some html page to harvest. But jvm hitting me with - [ICODE] Exception in thread "main" java.lang.ExceptionInInitializerError Caused by: java.lang.RuntimeException: Uncompilable source code - … |
| | hi i m gonna do a project on inventory management ...i dont to how to start up...pls help me |
| | Hi all, I want to read the data from the browser what i opened in my browser using java.if can any one knows pls help me.... Thanks all in advanced.... Regards, sreeram  |
 | Hi I am having trouble reading a file inside constructor from a method. Here is my code:- I can compile my code but I am getting runtime errors. Error [CODE]Exception in thread "main" java.lang.NullPointerException at java.io.FileInputStream.<init>(FileInputStream.java:133) at java.io.FileInputStream.<init>(FileInputStream.java:96) at java.io.FileReader.<init>(FileReader.java:58) at Testwow.readFile(Testwow.java:25) at Testwow.<init>(Testwow.java:13) at Testwow.main(Testwow.java:45) [/CODE] fh = new …  |
| | Hello I am not an experienced programmer, and I entered some code from a book I am following, to see if it would work but unfortunately I have run into some difficulty. This program prompts the user for the red, green, and blue values, and then fills a rectangle with … |
| | I need to log in to a website with Java, its an https(SSL) site. I have some code that doesn't give me an error but it doesn't log in. I've tried a similar program in python and it didnt login either. I think I'm missing some basic concept about this... … |
| | i have an arraylist, that stores objects from a class called prematricula and every object stored has name and province how i can do to pass the name of the province and the method return the names of the students sorted alfabethically... please if someone can help me.... |
| | Alright my program is giving me a hard time and I will have to briefly explain what it does and when the exception is thrown to give you a better understanding. My program goes off and reads a csv file, once it reads it, it adds the information to my … |
| | How do I create a Java based game??? This is a school assignment given to me. I want to use simple Java programming and create this game?? If you have any ideas please reply... Thanks |
| | I'm somewhat inexperienced with Java and have been having an ongoing problem with using JOptionPane.showInputDialog. When the dialog appears, it disappears again before I can get to the drop-down or text box. It doesn't actually go away - by using Alt-Tab, I can get the dialog back. This is random …  |
| | Hello, I am writing a method which must open a file, read its contents, close the file, open it later, write to the file, and close it again. The method is failing at the first step and throwing an IOException when trying to execute: [CODE]FileInput Stream fileHandler = new FileInputStream("myfile.fil");[/CODE] … |
| | So I have my text files saving perfectly from my program in the exact way I want them to. Here is a copy of the text file that my program saves that I am now trying to load back in, parse, and set up internally as another object: [CODE]scott-survey m/c … |
| | my name randy im IT student... in this semester i take computer network security, and i get the Feistel Cipher assignment... the lecture give the assignment is create feistel cipher program with any language... any other of you can help me with java language???? please thx  |
| | hi all ..i have a problem with my project and need your help plz ... i have this code [code] int [] exp = {32,1,2,3,4,5,4,5,6,7,8,9,8,9,10,11,12,13,12,13,14,15,16,17,16,17,18,19,20,21,20,21,22,23, 24,25,24,25,26,27,28,29,28,29,30,31,32,1}; int [] expword = new int [exp.length]; String s=toenc.getText(); if(s.length() < 32) JOptionPane.showMessageDialog(null,"Word must be 32"); else{ int[] e = new int[s.length()]; for (int … |
| | please tell me how to convert any image into binary file and vice-versa Thanks in advance |
| | Im just new in java and im trying to make a program that would copy a picture from a specified folder and paste it also to a specified folder. i know how to select the picture using the filechooser and my problem is how to copy it. |
| | My Question : Suppose IA--->>>An Interface void func(); A---->>>Abstract Class implementing IA void func(){} B---->>Class extending A void func(){} C---->>Class extending B void func{} Now what i am doing .... i made an Object of C class..... C c = new C(); IA ia = c; now if i want …  |
| | Hello All! Thank you very much for viewing this thread. My problem is I am trying to pass a number value between classes/thread of the same java project in eclipse. I have a java project of 9 classes with three threads. The Display Class/Thread needs to accept a value coming … |
| | So I have this function that is supposed to output an object (save an object) to a .txt file. It doesn't output anything when the program comes to the point where it runs this function. I am 99% sure this is where the program hangs. [code=java] public void saveSurvey(String txtFile) … |
| | Hello all I have a string Im getting back from the database as follows: ('MCKINNEY','TX'),('ALLEN','TX'),('ANNA','TX') I need to break it down and drop into an array 'MCKINNEY','TX' 'ALLEN','TX' 'ANNA','TX' ..normally I get multiple records and just drop the resultSet into a Vector and do "elementAt(i)" to display, but I never …  |
| | Thanx for the help yesterday..I was able to break down the string from my database: ('MCKINNEY','TX'),('ALLEN','TX'),('ANNA','TX') using: [code] String strInput = userData.getMhtCityList(); String strProcess=null; String strOutputs[]=null; if(strInput!=null){ strProcess=strInput.substring(1,strInput.length()-1); System.out.println(strProcess); strOutputs=strProcess.split("\'\\),\\(\'"); } [/code] worked like a charm only problem now is those damn apostophies 'MCKINNEY','TX ALLEN','TX ANNA','TX' any suggestions on stripping … |
| | I'm looking forward to learn Core Spring and Hibernate. Which books would you recommend and some good online resources (beside their websites)? |
| | [code] public class Caesar01 { public static void main(String[] args) { String str = "NS BFW, JAJSYX TK NRUTWYFSHJ FWJ YMJ WJXZQY TK YWNANFQ HFZXJX"; int key = 5; String encrypted = encrypt(str, key); System.out.println(encrypted); } public static String encrypt(String str, int key) { String encrypted = " "; for(int … |
| | have been, for the past few weeks trying to figure out how I can compare images. From my experience in what I have been working on, I know it is almost impossible to compare two images and get a 100% match but I am not looking for a 100% match …  |
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