35,619 Topics
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| | I'm writing an IDE for java and already got the compiler linked into it, but I can't figure out how to read the data on the System.err or System.out streams. |
| | I have written a java application that writes to a file. I want to call it using a button in my jsp web page. This worked but it didn't write to the file. I think I have the jar file in the wrong place?? Please Please Help, this is really …  |
| | Dear Experts, I am Manoj, I had been alloted with the project [B]online messaging system [/B] as a final project. i think it would very similar to the space where i am Posting , it should change the BackGround Color, icons etc please show me the way to do this. … |
| | hi, how would i install jbuilder under fedora 5? is that possible.. thanks |
| | Hi, How do i align text to the right in java? Default its from left... Thnx in advance! |
| | I'm trying to find all quoted strings in a given text so that I can apply proper highlighting. I've tried various regex but can't seem to get the results I want. [code] String line = "a big \"yellow\" dog! And a \"purple\" bird!"; String[] tokens = line.split("\".+\""); [/code] That cuts … |
| | Hi, Im having a lil problem which is kinda fustrating me. This line of the code: g.fillRect( xPos, yPos - 20 - sensor[i], 20, sensor[i] ); the last sensor[i] besides how high the rect will be. And in this case that would be 1, 2, 3, 4, 5, 6 and … |
| | I am new to java programming. I kept getting this problem cannot resolve symbol. I really don't know what went wrong. I am using J2SE SDK 1.5 and jGRASP 1.8.3. The code are below. Hope I can get a reply ASAP. Thanks.. [COLOR=#0000ff]1 [/COLOR][COLOR=#941edf]import[/COLOR][COLOR=#000000] java.util.Scanner; [/COLOR][COLOR=#0000ff]2 3 [/COLOR][COLOR=#941edf]public[/COLOR][COLOR=#941edf]class[/COLOR][COLOR=#000000] Pay [/COLOR][COLOR=#0000ff]4 … |
| | Where can i download all Java advanced tutorials in Java sun .com i want the specific link |
| | I am using FocusTraversalPolicy policy in my Swing Project for tab out functionality. In some screens some componenets(combo box , textbox etc) are disabled in between some enabled components. So when i tab out from those which are enabled it loses focus when i tab out as that component after … |
| | I'm new at Java, and I'm probably just an idiot, but I need to know how to show an answer as both a fraction and a decimal. Can anyone tell me how? |
| | hi, I want to know what a thread is and what it is used for. also how it is used...:mrgreen: thanks |
| | I have the following problem with a servlet in production on the Internet. I am using POST in a servlet to send the data to the servlet. I see in the log from the servlet that in rare cases the post parameters received in the servlet are null, and when … |
| | Hi plz if i have a text file file1.txt contains for example: Hi Bob ? How are You? I need to meet u. See u Bye and i need to copy this file contents to another file but without line separator i need to ignore it so i want for … |
| | :sad: Hi ,I have a text file and it contains a message ,I want to extract the last four characters in this file and then convert it to integer i did the following: FileInputStream Received_Message=new FileInputStream ("MyFile.txt"); BufferedReader buff2=new BufferedReader(new InputStreamReader(Received_Message)); System.out.println("Your Received message is as following:"); while((recv_Message=buff2.readLine() )!=null){ System.out.println(recv_Message); … |
| | is there any method to split this line into StringTokenizer or by regular express? [B]1009027,"PMP Exam Prep (4th Edition)","",8,0,0,5,4,"Paperback","0971164738","","",89,89,743,"01 October, 2002","Project management@@@Examinations, questions, etc@@@Study Aids@@@Professional@@@Architecture@@@Tests@@@Study Guides@@@Education@@@Business & Economics@@@","0971164738"[/B] i wanna split the word by the delimiter "," but i found that there is some "," inside the double quote....so is … |
| | I wrote a simple program for tictactoe and have everything working except a method to check and see if a player has won the game diagonally. I am not sure how to write the for loop to check the board. Code: [INLINECODE] public class Board extends ReactiveDrawingPanel implements GameConstants { … |
| | When using the modulus, if a<b, then a%b = a. But why, if a is negative, does -a%b = -a? According to the division algorithm, the remainder r must be >= 0 and <|b|. |
| | Hello, I am trying to write a simple updater program (in Java). A client would connect to the server, which would hand out any files it needs updated. One example would be updating a Java .class file. I have tried to just copy a class file, to see if that … |
| | Hello, I was wondering if there was a way to find how many lines there are in a text file, and if so can you find out how many lines in the text file start with a particular word (an identifier). Thanks |
| | hi, what is the difination name, when a method calls itself in its body? thanks |
| | i'm making a project based on a UML, and i have a method that i don´t no how to do it, and what is to do. [CODE] public VertexIterator getEdgesIterator(){ // TO IMPLEMENT }[/CODE] here's the class WeightedEdge and Vertex : Classe Vertex [CODE]package SegundoTrabalhoTerceiraPartePrimeiraPergunta; import java.util.*; public class Vertex … |
| | Hello, My problem is to connect through mobile to a servlet in web server and then collect some data . I hav built a servlet which serves this requests. I tworks fine in my pc. but after uploading it to web server it cannot connect to that server. Can anyone … |
| | Hi, I have an error, during accessing a datbase using jsp:useBean from jsp.Urgent i need this one my source code ispackage SQLBean; DbBean.java import java.sql.*; import java.io.*; public class DbBean implements java.io.Serializable{ private String dbDriver = "sun.jdbc.odbc.JdbcOdbcDriver"; private Connection dbCon; public DbBean(){ super(); } public boolean connect() throws ClassNotFoundException,SQLException{ Class.forName(dbDriver); … |
| | Hi All! I've been working on a simple MVC style / struts web application which will allow a user to view a product database and have the option to update a record. The initial index.jsp page works and forwards to the right locations, the update page displays but is producing … |
| | hi, can a server and client application communicate using strings. for example say server sends ok and error for each request received....... thanks |
| | I'm fairly new to java and need someone to point me in the right direction. I'm writing a non web-based java program, and part of that program requires the ability to download files from websites (e.g. images, zip etc). I tried looking through the java class descriptions on the sun … |
| | Hi my name is Knightofdurham but my friends call me Knight anyways i am a student in the Uk doing information systems and management. ANyways the reason I have registered to this website is because i need help with one of my java programs. Basically at the moment it sorts … |
| | Hi Friends, i made a window with a Panel and painted a text on it. Now i want to set a background color for the panel but it does not reflect in the window.. i am posting the code here.. Please let me know if anything is wrong with the … |
| | Ok got a new problem i've started to implement a GUI for my program but for some reason in the actionlistener metho i cannot pass the method i want to display.. I dont know what im doing wrong because i am not familiar with using GUIs... can somebody please help …  |
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