32,199 Topics
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| | I am using generics in java, and I want to know how I can test to see if I have a int or a float? Is there some sort of type-testing? I'm sure there is, I just need someone to help point me in the right direction. Thanks!  |
 | can anybody see anything worng? I'm returning these to the main sO=ScoreO(O); sX=ScoreX(X); These are my two methods: [java] //method to tally the score for x public static int ScoreX(boolean X){ int scoreX=0; if(X==true){ scoreX+=1; } return scoreX; } //method to tally the score for x public static int ScoreO(boolean … |
| | For a homework assignment, I have to create a random salary generator which is pretty easy. We have to create a random number of employees, 3-15 only and then the number of years of that salary with a limit of 3-15. This is easy so far. After this, we have …  |
| | 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 … |
 | 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 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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