Software Development Forum

Hey, Is there a way, by using find, to create a method that finds the last occurrence of a character in a string? I know how to use the find method to find the first occurrence but have no idea how to do it backwards. Basically this is what I …

I am having a problem with setting JButtons so the are not opaque to i can see the image behind them. I also have a JTextfield and here it is working, I dont know what i am doing wrong, I'm creating a gui for the mainmenu of my game. here …

Seem to be having trouble. The trouble i'm having is the calculateAverage, and a bit of the public static main void area. I'll explain: calculateAverage: What i'm suppose to do is read from the txt file. I tried doing the inFile.nextDouble part, but seem to be getting errors. i'm not …

Hi, In the following code (Class & Form1), I'm trying to figure out the following: - Create an array that stores the 'Clients' (first name, last name, account number) - 'Button List' the array with the (First Name , Last Name , Array Value , Account Balance) I attached the …

Hi, I am trying to "Show" an error message for the user in two cases: 1. If he/she did not enter a correct value for a String. 2. If he/she did not enter a correct value for a Decimal. I know I have to use Try & Catch but each …

Hello guys. Im using visual studio 2005 and access 2007 as database. I have already connect the database which have two table with two gridview in a web form (asp.net). Now i want to compared the data in the two gridview, and those who are matching should be displayed in …

Attached is my code for my homework for my C++ class. My problem comes from when I run the program. It returns a value of 1 every single time for the output of the "is it a leap year or not" part of my program. Then, when it outputs the …

I have looked this up and cant seem to find a solution. Nothing I can find will work with my code. I really need help because i am doing this for a class project and nothing will work. Heres what i'm trying to get it to work with. [CODE] import …

Hi there. I'm having a slight bit of trouble when using a multi level case statement in my program. I'm not sure if it's because you shouldn't use case statements inside of case statements or if it's because I haven't yet learned enough about using them. Basically I want to …

Given the following instructions ADD Rx,Ry,Rz ;Rx <- Ry + Rz ADDI Rx,Ry,Imm ;Rx <- Ry + Immediate Value NAND Rx,Ry,Rz ;Rx <- NOT (Ry AND Rz) Show how you can use the above instructions to achieve the effect of the following: CLR Rx ;Rx <- 0 I am a …

Hello! Im having trouble with reversing string in this program: [CODE]#include <iostream> #include <string> using namespace std; int numChars(string besedilo[]) { int znaki=0; int vrstica=0; for(int a=0;a<10;a++) { vrstica=besedilo[a].length(); znaki=znaki+vrstica; } return znaki; } int numWords(string besedilo[]) { int besede=0; string vrsta; for(int a=0;a<1;a++) { vrsta=besedilo[a]; for(int b=0;b<besedilo[a].length();b++) { if(vrsta[b]==' …

Hi everyone, I'm a moderate-level C++ programmer who is a little rusty at the moment. I've got an object question which is driving me nuts. I'm sure this is a C++ 101 level question, but for the life of me, I can't recall the solution. Basically, I've got one object …

Im coding my first Java applet for a University project and im having issues. Im in the process of coding a search and information function. When the user clicks anywhere in the applet a black circle appears under the cursor, when they then press the information button, information about that …

Hello! I would like to ask for tips on how to handle database concurrency in a client server application in c#. I am using SQL Server 2008 r2 as my server. I have minimum to zero ideas on how to handle such and would really appreciate any help that you …

I want to write this function integerPower(base, exponent) that return the value of base^[I]exponent[/I] For instance integerPower(3, 4) = 3*3*3*3 The function has two parameters my question is how can I use the for loop to control the calculation? It's not that hard to use the for loop when the …

so this is what the output should be: A b C d E f G h I j K l M n O p Q r S t U v W x Y z heres what ive done so far class za { public static void main(String[]args) { String x="abcdefghijklmnopqrstuvwxyz"; …

Hey can someone help me with my java program you have to A-Z to Z-A here s what i ve done so far: class az { public static void main(String[]args)throws Exception { String x="abcdefghijklmnopqrstuvwxyz"; int ctr; for(ctr=1;ctr<=26;ctr++) { char z=x.charAt(26); System.out.print(z); } } }

My .Net Code [code=c] # connDO.Open(); # SqlCommand comm = new SqlCommand("DOrders.dbo.p_Update", connDO); # comm.CommandType = CommandType.StoredProcedure; # daDirectOrders.UpdateCommand = comm; # # comm.Parameters.Add("@UOrderNumber", SqlDbType.Int, 32, uOrderNumber.ColumnName); # comm.Parameters.Add("@ConfirmationCode", SqlDbType.VarChar, 50, confirmationCode.ColumnName); # comm.Parameters["@ConfirmationCode"].SourceVersion = DataRowVersion.Original; # comm.Parameters.Add("@Carrier", SqlDbType.VarChar, 50, doCarrier.ColumnName); # comm.Parameters.Add("@Tracking", SqlDbType.VarChar, 50, doTracking.ColumnName); # comm.Parameters.Add("@OrderID", SqlDbType.Int, 32, …

I saw the movie from the link[URL="http://channel9.msdn.com/Events/GoingNative/GoingNative-2012/Keynote-Bjarne-Stroustrup-Cpp11-Style"]http://channel9.msdn.com/Events/GoingNative/GoingNative-2012/Keynote-Bjarne-Stroustrup-Cpp11-Style[/URL] Could I find something like std::async from boost?Thanks a lot

Hello guys i'm getting a massive memory leak which over period of 1min its increase alot and always increases. How to i prevent the memory stacking? I looked all around the internet as im not just posting coz im lazy, i cant find a solution for my code. [CODE] Private …

I can't seem to figure this out- I have a single text box that has text in it. When I put the mouse in it and click it, I need the text to clear so new text can go in. Does anyone have a sample? TIA

Hello, This isn't the typical "I wrote a heap sort that doesn't work, help me please" thread, instead, I'm one step before that. I'd really like to [B]understand[/B] the innards of a heap sort before I attempt to write one. I'd like to give it a go from scratch, or …

I want to store an "Intptr" type value in a file and later retrieve it to pass in a function... Can any one please guide , how this can be done?? The value retrieved by the file is of type string... Please guide how can I manage it...

Hi, Can anyone go through my code to brush it up?I got the correct output,printed below, but i need some polishing of the below loop assignment. 1.Should i be using 2 while loops? 2.Regarding the [B]output[/B]-How can i align the verticle columns and the output neatly. [ICODE]public class MK{ public …

Hi! I was wondering if there is a way to mock Date and Calendar objects for testing purposes. In other words I want to programatically be able to change what new Date() and new Calendar() etc. returns independent of the system date. Something like setting the date for the jvm …

So i dont know why i am getting this error, here are my 3 classes plus the tester edit: I get the null exception after i run the program, --------------------Configuration: <Default>-------------------- Exception in thread "main" java.lang.NullPointerException at University.offerCourse(University.java:35) at StudentCourseTestProgram.main(StudentCourseTestProgram.java:53) Process completed. [CODE]import java.util.*; public class Student { private String …

I want to create and write to file on a machine which is connected to my network... The code is: logfile = new StreamWriter("\\\\192.168.15.237\\C\\AdminTrace\\" + " " + DateTime.Now.ToShortDateString().ToString().Replace("/", "-") + ".txt", true); the IP address corresponds to the machine on which i need to create the file... and the …

Hello, I recently turned in this assignment and I didn't received full credit. He wrote "It could be better." I'm not sure what to change. Here's the assignment: Write your own driver for a stack class. Instantiate one stack container object. Your driver generate random strings (uppercase letters) to push …

Not sure if it is possible but is there a way to multiply,add,or subtract values in a tuple? Say for example I have: [CODE] a=raw_input("enter 2 numbers separated by a /: ") #5/2 entered b=a.split("/") c=a[0]+a[1] print c [/CODE] The value comes out to 52 which is obviously wrong. Is …

Hello How do i reset 2 textbox text of out four textbox at random avoiding a textbox whose text = 'A' for clarification. i have Textbox1.text = "B" Textbox2.text = "C" Textbox3.text = "A" Textbox4.text = "D" how do i set an empty value "" to any two textbox at …

Can anyone help me with my homework? Create a Java class named ArrayTest with a method called arrayCombiner that creates three arrays of size 10. The first array should contain the values 1, 3, 5, 7, 9, 11, 13, 15, 17, and 19. The second array should contain the values …

Hi all. I am having trouble with one of midterm practice problem questions again. I need to be able to get the First, Middle, and Last Name using the count function. However, my professor wants us to be using a name with more than one middle name, and I am …

import java.awt.*; import javax.swing.*; public class RandomCircles extends Canvas{ private static int delay; private static int numCircles; private static int frameSize; public static Graphics g; public void paint(Graphics g){ } public static void main(String args[]){ frameSize = 800; numCircles = 1; delay = 5; RandomCircles circles = new RandomCircles(); JFrame …

i have a list box and a button. i would like when the button is clicked the selected item in the list box is deleted. any ideas?

I have a form with a text box and a form with a list box. I would like to be able to push a button on the form with the text box and have it be added to a list box. any help?

I have two combobox. I want to transfer all elements from combo1 to combo2 but with a filter only those item from combo1 will go to combo2 which are not in combo2. For example Combo1 ________ This Is Help But Not Combo2 _______ Is But And Quick So after clicking …

Hi, I wrote this code as is from the JNDI tutorial from sun website. But I am getting this exception while running it: [CODE]import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingException; import java.util.*; /** * Write a description of class FirstJndi here. * * @author (your name) * @version (a version number …

Hello. I have started writing a program that adds students and courses into a university. The problem I have is I keep getting "Student.java:62: cannot find symbol" errors, I looked at an example and I have it setup the same way so I don't know where I am going wrong. …

I have 1 listbox, 1 textbox, and 2 buttons (for start, and stop) if I press the the buton for start the textbox will display (one by one) the items in listbox.. and if i press stop the textbox will stop displaying items.. is it possible? do i have to …

I need to modify this movies program so that way the DVDs will be sorted by title at all times (A first thru Z). I need to use Binary Search so I put a method in DVDCollection but I'm probably missing something or calling it incorrectly. The program needs to …

Hello, The following applet displays two .jpg files (ImageIcon objects - x and y) on a JPanel. I would like to display the second ImageIcon object (y) as transparent. Is that possible? Thank you! [CODE] import javax.swing.*; import java.awt.*; public class PicPanel extends JApplet { ImageIcon x, y; JPanel panel; …

Hi guys I have part of the code that looks something like this: [CODE] if(c1=='a') myStack.push(c1); else if(c1=='b') myStack.push(c1); else if(c1=='c') myStack.push(c1);[/CODE] I just want to ask is there any way to rewrite this code, to make it more compact something like [CODE]if(c1==('(a'||'b'||'c') // I know this doesn't work [/CODE] …

1 using System; // help me to write this code in object oriented 3 namespace ConsAppl_OOP_Keo_c39 4 { 5 class Procedure_Orieted_Programming 6 { 7 static void Registration(string studentID, string courseNumber) 8 { 9 Console.WriteLine("Данныерегист-циистуд-та: №студента - " + studentID + ", №курса - " + courseNumber); 10 } 11 static …

I have a what should be a simple form program that has a comboBox, textBox, two buttons, and a label. once the user picks an item it shows the cost for that item. they can then enter a number into the textBox, once order is clicked the total amount for …

Hi All, I'm going crazy with this. I have a file called unique.txt with allot of values in. When I run my script it will add 1 value (1319613308.476855) to my value file but when I grep the value it displays nothing and I know the value is present in …

Hey guys, I've been having a bit of a problem using the while function. Here is my code (Simplified): [CODE]Dim RandomNumber3 As Random Dim RandomOutput3 As Integer RandomNumber3 = New Random() RandomOutput3 = RandomNumber3.Next(1, 9) Dim RandomClass As Random RandomClass = New Random() While (RandomOutput3 = RandomOutput Or RandomOutput2) RandomOutput3 …

hey, im getting the exception [CODE]Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: com.sun.media.jai.codec.SeekableStream at javax.media.jai.operator.BMPDescriptor.class$(BMPDescriptor.java:65) at javax.media.jai.operator.BMPDescriptor.<clinit>(BMPDescriptor.java:87) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:186) at javax.media.jai.RegistryFileParser.getInstance(RegistryFileParser.java:224) at javax.media.jai.RegistryFileParser.registerDescriptor(RegistryFileParser.java:360) at javax.media.jai.RegistryFileParser.parseFile(RegistryFileParser.java:295) at javax.media.jai.RegistryFileParser.loadOperationRegistry(RegistryFileParser.java:55) at javax.media.jai.OperationRegistry.initializeRegistry(OperationRegistry.java:369) at javax.media.jai.JAI.<clinit>(JAI.java:382) at cbir.window1.ColorHistogram.<init>(ColorHistogram.java:61) at cbir.window1.SearchWindow.jButton1ActionPerformed(SearchWindow.java:92) at cbir.window1.SearchWindow.access$000(SearchWindow.java:22) at cbir.window1.SearchWindow$1.actionPerformed(SearchWindow.java:47) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252) …

I have an integer called: int pID = 0; Inside my while loop I'm using pID++; to increment it. Sometimes the pID doesn't get incremented and sometimes it will. My sample output would be. 0 1 2 2 2 3 4 5 5 6 7 Does anyone have an idea …

Hello masters, I want to know how to check an empty textbox in the form. I can check it by assign Text1.Text = "". But i have many textbox in form. Thank you in advance

Im working on a Search index that searches through files that you manually add to the index, I'm having trouble with my GUI right now. Never used any java IDE before and its giving some unfamiliar suggestions. Netbeans wanted to make my main class abstract (but for no reason stopped) …