35,618 Topics
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| | Hi guys I started to learn java and have a little problem\. When I try to compile my little program it says : assgn2.java:40: variable overnight might not have been initialized System.out.println(overnight); [CODE]How is that? The code: import java.io.*; public class assgn2 { public static void main(String[] args) throws IOException … |
| | Hi, I am using a JSP from to collect data from user and then inserting those values into a table in MySQL.But it is returning 'null' always.I am able to query the DB and view the entire table and everything else is fine. But the INSERT is not working somehow!!! … |
| | Dear sir, I am using jsp(Model View Controller platform) for making web site. I have to create dynamic treeview by quering data from database. I think I have to use ajax , jsp code for making tree. Can anybody help me. Thanks. |
 | I am executing a project that have 100 jar file attached to it I am able to execute it in Eclipse but i want to run it from batch file but the problem is that i am not able to set class path , whereas in eclipse we can direclty …  |
 | I need help making a counter uusing a two dimmensional array. I'm doing a tic tac toe program and need about done, just need the counter and have no clue how to do it.  |
| | So we're supposed to modify this class, which implements Comparable, so that it accepts any type of object. The Comparable interface contains the method signature for compareTo, which I need to implement. What I'm uncertain of is how to implement this method. I know that compareTo is supposed to return … |
| | HI problem: Write the definition of a class Clock . The class has three instance variables: One of type int called hours , another of type boolean called isTicking , and the last one of type Integer called diff . You should also write a constructor that takes three parameters … |
| | hey everybody!! i urgently need a project in java for electricity bill generation software kindly contribute as much as possible... i m in real trouble  |
| | Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); //Registering driver type Connection con=DriverManager.getConnection("jdbc:odbc:proj"); // Assigning drivermanager con.setAutoCommit(true); //String str="insert into dovetail values('"+id+"','"+a+"','"+b+"','"+res+"')"; String str="insert into dovetail values('ASDF','Raj','1234','198')"; Statement stmt=con.createStatement(); // creating statement object int ret=stmt.executeUpdate(str); System.out.println(ret); if(ret==0) { System.out.println("Not Inserted"); } else { System.out.println("Data Inserted Successfully"); } /*str="select * from dovetail"; ResultSet resl=stmt.executeQuery(str); boolean val=resl.next(); while(val) { … |
| | pl. help me in how to export and import MsExcel in java |
| | Hello everyone please i need help .. i am new 2 java and i was given this assigment of which i dont even know where to start from...If anyone can help please IM me so i can send him the question or perhaps for a little guidance on how to … |
| | How to learn in the most effective and efficient way. thank you |
| | Hi Please help me with this problem Write the definition of a class Play containing: An instance variable counter of type int , initialized to 0. A method called increment that adds one to the instance variable counter . It does not accept parameters or return a value. A method … |
| | I need help understanding why my code doesn't work while using number coordinates. I'm using a two dimensional array, I would like to post my code so you guys can check my errors, but I don't want anybody else to steal it, can anybody help? |
| | I have been given a homework this is it: [QUOTE]Homework 7 Due in your lab in week 10 For this homework you are expected to write one program, which consists of a main method and an insertWord() method. You must work on the program outside the formal laboratory sessions. The … |
 | hi, i am using tomcat server to executing the jsp files. my task is to open an application while clicking the hyperlink it throws an popup error msa Access is Denied. and also i used the path of a file in href it also not opening a file. give me … |
| | hi, I have created servlets for hotel management. In that i want to create a search engine to search the customers by their name & by their room no so will u please help me out in that.  |
| | My loop keeps looping...even after the condition is changed to false. Whether I enter a "y" or an "n" my loop still loops. I know it's never leaves the loop, because I never get the "do I get here" println. This is my first time with booleans...so maybe I'm doing … |
| | hello, i am a new comer. is it possible [COLOR="Red"]to read data (e.g. some integers followed by a unique word) from a defined web page of a defined web site?[/COLOR] if possible please help me or suggest me which language is appropriate to do the job......... |
| | Is there a way to find if an entry is indeed a number without using try/catch? I want the program to keep asking the user to enter a number if s/he is "silly" enough to input something else. [code] System.out.print( "\n¿Edad minima a buscar? " ); edadMinima = input.nextInt(); [/code] … |
| | Hello all -- found myself stuck on a certain bit of code dealing with a number pattern I put together. I've written out most of the code, but I'm stuck in 2 areas - thought maybe someone could help shed some light. It seems like it would be very simple, … |
| | I guess I'm having a lot of problems tonight with this program I'm trying to accomplish for myself... I'm trying to write an application called TestNumFactors which defines a static method with header "public static int numFactors(int n)". When numFactors is called, it should return the number of factors of … |
| | [B]how to open any exe file using java. i alrerady used the Runtime.getexec() code. but when i refresh the page the application is opening. my thought is the application should be open after clicking the button in jsp page. if u have any code send me.[/B] |
| | So here's the problem [QUOTE]Write a program that asks the user to input a set of floating-point values. When the user enters a value that is not a number, give the user a second chance to enter the value. After two chances, quit reading input. Add all correctly specified values … |
| | Just curious... I've got a snippet of code I'm trying to put together, and what I'm trying to get it to do is to print out the word "yes" exactly when i ends in the digit 4, or j ends in the digit 7, or both. I know my if … |
| | I have been working on an inventory program for school and it is all working. What I need help now is making a GUI for it. To display one item at a time with a buttons like First Item, Next Item, Previous Item, and Last Item. Could someone help me … |
| | my jsp and servlet are in Z: drive and i want to configure eclipse for application server plz tell me how to do it |
| | Hi, I'm trying to make my own sokoban game in java. Sokoban is a top down 2D puzzle game where you move around a level trying to push boxes to the goal area in the least possible moves. I'm already pretty stuck at an early stage. My first objective it … |
| | i have java strategy game project.however ı dont know how can ı control the map.for example when player selected a dıvısıon how can ı get ıts poınts to know which division is selected.to be able to thıs ı should have all coordınates of the maps(every poınt).of course ıt ıs ımpossible.there … |
| | Hello, any tutorials in how to use bubblesort, selection and insertion? Help is greatly appreciated. Thank you.  |
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