35,618 Topics
 | |
| | Hi All, I am creating an application in which I want to keep refreshing a jsp file and in that jsp file i need to keep calling another url of type [url]www.daniweb.com/receive.jsp?a=xxx&b=xxx[/url] and save this url in database. Here the url keeps changing in every second ie. values of a … |
| | Hello Consider this scenario: [CODE]File file;[/CODE] and later [CODE]file = new File("Hello.txt");[/CODE] [CODE]file = new File("hi.txt");[/CODE] As you all know, this will create two text files in java. How do I delete one of these files, as in if I only wanted to delete hi.txt?  |
| | Hello, First off, thank you to anyone who helps me in advance. I am about as new as one can be to Java, and am having some troubles. In the below code, the goal is to create a fraction. The rules are the denominator has to remain positive and I … |
| | example output The price per kilo of rice is 30. Enter The kilos of Rice: 30 The price of rice is:900 |
| | Hi, I am working with drools guvnor. Basically drools is a rule engine that helps to create rules. I want to calculate the nodes or find the flow of rule path that is taken by the guvnor to make any decision in rule. Please help if possible. Thanks in advance. |
| | Exception in thread "main" java.lang.IllegalArgumentException: Cannot format given Object as a Number at java.text.DecimalFormat.format(DecimalFormat.java:487) at java.text.Format.format(Format.java:140) at McVrideMortgageCalculator.Main.main(Main.java:69) The above statement is the error that occurs when running code. [CODE]package McVrideMortgageCalculator; import java.text.*; //Allows text formatting and used for formatting currency in this program public class Main { public static … |
| | Hi all i am creating an application in which i m using jsp,servlet and javascript. on jsp page there are text boxes named ID and Passwprd and a submit button. When we submit jsp page first javascript will be executed if we left any of the text boxes blank, that … |
 | Hi guys - quick question I have created a class that creates an array of JButtons and places them onto the panel. That all works well but what I want is for the panel, placed on a frame container, to resize to fit the amount of buttons added. The total … |
| | Can anyone send me the code for downloading software using java in a search engine? Thank you in advance. |
| | Hey guys How do I do a calculation of coordinates X,Y,Z between 2 files. Eg. File 1 has about 1000 lines and so does File 2 I have done the pre processing for the coordinates that are needed to be extracted out. They are kept in my 2D arrays. This … |
| | I would like to be able to divide this java code up into more than one file, so I can reuse the code for other programs, but I'm not sure what I can grab. Right now, I can't make another program using this code, as you see the WHOLE program … |
| | I am reading from a file and while i know how to work with those i am trying to read the line. get all the fields. then store them in a class with those fields. then store that object in a vector. Heres how i deal with reading the stuff … |
| | Why does parsing a float into array cause precision loss error. I am trying to sort data from a text file that contains text, integers and float numbers. Using the for statement causes loss of precision errors. How do I correct this please. [CODE] float y; for (float k = … |
| | Hello all, i have a homework lab/assignment due by 12 tonight. It needs to print out a drawing panel and request 2 names from the user. It should then have a way to take the 2 names entered and create 2 new names in the drawing panel: e.i. "John" would … |
| | I am having problem with calculating the angle using sin. So far, I got the literal of numbers, which is not making sense. I am supposed to match my answers with this: Set up new triangle with coordinates (0.0, 0.0), (3.0, 0.0), (3.0, 4.0) Area: 6.0 Parimeter: 12.0 Length side … |
| | Hello Members, I have an Applet which calls a JFrame. Once the JFrame shows up, is there a way to make the Applet invisible? Thank you!! sciprog1 |
| | I received the error "possible loss of precision" on the last line of my code. Is it not possible to return a double? My instructions were to create a program, called power, that took a double (x) and raised it to an integer (n) power. [CODE] package power; /** * … |
| | [LIST=1] [CODE] System.out.print("Enter the letter(t or z): "); B]letter = keyboard.next();[/B] if (letter == 't'||letter == 'T') { System.out.println("True"); } else if (letter == 'z'|| letter == 'Z') { System.out.println("False"); } [/CODE] Im getting an error here in bold, what is the problem?? |
| | Ok so I have to write a reverse method of a stack and I am not quite sure how to do it. I understand that i need to pop the strings from one stack into another but whenever I try to do this errors arise. Specifically it says it cannot … |
| | When i try to complile it says SlotMachineReel.java:175: missing return statement I think its because all my returns are in "if" statements and it needs a default return. line 128 & line 175 Thanks in advance for any help [CODE]/** * Constructs a new reel with its current face randomly … |
| | I would like to sort a list (from a text file "sales.txt")that has text, int and float values. The problem I have is, my output only produces the last set of values. I would like to produce a table with as the final output. Please help me. [CODE]public class Sales … |
| | So I need to write test cases for a problem with multiplying, dividing, adding, & subtracting fractions but I just can't quite seem to get it correct that it works. Here is part of the test file [CODE]//Multiply if (f1.multiply(f2) == (-2/15)) { System.out.println("test multiply: passed"); } else { System.out.println("test … |
| | Hi everyone, I want to disable windows key in keyboard.Please let me know if u hav any idea. |
| | Hi friends ...... I am doing a priject based on face recognation in java .... If anybody knows about it please help me....my doubts are:- 1-how can i read inage from a web cam ? 2-give a best and latest algorithm for comparingtwo images Anyway thanks in advance...May GOD bless … |
| | hey guys, i am looking for source code as simple as possible that would be able to represent the shape of the human body in 3d (it could be almost stick man like or preferably something like this [url]http://www.3dlinks.com/oldsite/tutorials/GENERAL/chapter6_1.cfm[/url]) i would like to use for further development such as a … |
| | Project 1 Project 1: Moving Objects Objectives Upon Completion of this project, students will be able to : Implement small classes that conform to a set specification. Use multiple classes together to solve a larger problem. Use logic to enforce a valid internal state and perform computations. Description The purpose … |
| | I am using Apache Tomcat 5.5 + JSP in the web server, and MS SQL Server 2000 in another database server. There is no problem before I resinstall the web server due to hardware failure. I am not sure if I miss some configuration that all the Chinese character stored … |
| | I have so much trouble with this questions not only questions I want to study big o and time complexity but until now I didn’t found any good sit that explained it so could anyone help me by proved some sits about big o and time complexity and I really …  |
| | There are already 2 checkboxes to change to bold and italic. Now I want to make four radio buttons to change the font of the saying "say it with style!". Below is my code. [CODE]//******************************************************************** // StyleOptionsPanel.java Author: Lewis/Loftus // // Demonstrates the use of check boxes. //******************************************************************** import javax.swing.*; … |
| | When I tried to compile this code, it has one error says ThreadsDemo.java:37: 'else' without 'if' else { ^ I don't know what's wrong with that exactly? [CODE]import java.util.*; class A extends Thread { private static int counter=0; private final int id=++counter; A() { start(); } public void run() { …  |
The End.