Software Development Forum

Hi! There is JPanel with multiple JLabel components. I would like to change the border color of JLabel component that is clicked on. I tried [ICODE]this.getComponentAt(e.getX(), e.getY()).setBorder(solidBorder)[/ICODE], but it did not work... How could I solve this task?

Hello, I'm getting quite flustered with this program and the errors are starting to get harder to debug. This is my tree.java file: [CODE]package TreePkg; import java.io.FileNotFoundException; import java.lang.SecurityException; import java.util.Scanner; import java.util.NoSuchElementException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.Serializable; import java.io.EOFException; class TreeNode<T extends Comparable <T>> …

Why do they release their own version? Also why don't they allow Java on their portable devices? I'm looking for their specific reason, something besides "Apple are Nazis".

Hello. First of all, I'd like to say that this is my first post. I have indeed searched this forum for code snippets and help, but never thought I'd have to post anything, since I could easily search for someone who's had the same problem and fix my own code. …

Hi! I'm trying to add dragging and dropping behaviour to JLabel. It works only when I press the mouse for the first time. If I continue pressing the mouse, the error message shown below is generated. Please, help me to find an error. [CODE] JLabel bkg = new JLabel(icon); jLayeredPane.add(bkg, …

Hey, I've never really used packages before so I was wondering if what I am doing is possible. i have a package called spacewars with all my classes. I then created another package from that called spacewars.resources. I am not sure what the best way to access those resources is. …

Hello folks, How can I fill a 2D-array (of size [1260][4]) with all variations of 1-10 (which is 5040 variations)? 1 2 3 4 1 2 3 5 1 2 3 6 .. .. 1 7 4 9 .. and so on.. Thanks!

I need to code a C++ program to execute the tab control of the keyboard through the code. I am expecting when the tab control of the code gets executed, we should be able to navigate throught the web page through it. for example, take a web page, and we …

hello I have installed the fax service in windows. I want to write a code in vb.net program that start receiving from a fax call. please instruct me.

Hi I have this code with a function that outputs a square filled with the given char but for the [CODE] square(4);[/CODE] I want it to just output a square like this [CODE] **** **** **** **** [/CODE] How would I do this without changing the function definition or using …

How would i read a files bytes into a buffer in my program to compare them with another string a bytes? what methods are possible that i have available using c++ standard and/or the windows api -thx

Hi. This program has a function that divides an unsigned arg by another unsigned arg. I want it to only keep outputting "I'm really upset" after the first time it outputs "I'm really upset". Right now it outputs as [CODE] 5 0 I'm really upset 6 Press any key to …

hi, i'm christopher. and sorry because my english is not good.i am creating a new program whch is Document Tracking System Integrated with Barcode which one of my project..my problem is I am new in vb 2008. I create a random numbers and I want it to be converted and …

Hello Members, I have a Class_A which extends a JPanel. This JPanel is inside of a JFrame. In Class_A, I have a series of images (stored in an ImageIcon array) and another image, let's call it Image_A, which is also a ImageIcon type. How do I make Image_A a background …

Hi I'm trying to make a program that returns the number of letters in a string but it seems that the function I have is not working as it returns 0 every time. Can someone check what I'm doing wrong? Thanks in advanced. [CODE]#include<iostream> #include<string> using namespace std; unsigned letters(const …

I have a question about embedding Perl scripts in C. I wrote most of the program in C and a portion of it in Perl. As of right now, to call the Perl script I'm using pipe(), fork() and dup2() to create another process and have the Perl application write …

Hi, I have this program that outputs a triangle when given the size. Right now the triangle outputs like this [CODE] 5 * ** *** **** ***** [/CODE] Does anyone know how I would make it look like this? [CODE] 5 1 12 123 1234 12345 [/CODE] Thanks in advanced …

#include "Stdio.h" [CODE]main() { int a,b,c; int count = 1; for (b=c=10;a="- FIGURE?, UMKC,XYZHello Folks,\ TFy!QJu ROo TNn(ROo)SLq SLq ULo+\ UHs UJq TNn*RPn/QPbEWS_JSWQAIJO^\ NBELPeHBFHT}TnALVlBLOFAkHFOuFETp\ HCStHAUFAgcEAelclcn^r^r\\tZvYxXy\ T|S~Pn SPm SOn TNn ULo0ULo#ULo-W\ Hq!WFs XDt!" [b+++21]; ) for(; a-- > 64 ; ) putchar ( ++c=='Z' ? c = c/ 9:33^b&1); return 0; …

Hi i have created a program for my college assignment which asks to create a program for a telephone company that requires the program to calculate call charges for their customers, and also give discount calls depending on the time of day and day of the week. The assignment also …

These days, it's usually unnecessary to consider how much memory to allocate for a string input. This was mostly for fun. This code allocates memory as the user inputs each key stroke, then allocates and returns a string pointer when the user presses enter. Tell me what you think! [B]USAGE:[/B] …

I have a buying system set up in one class (the Right Panel class) and it's working great, but my text field for displaying money available is in the Left Panel class. When I click the buy button, it should subtract from the money amount and re-display the new money …

Please help me..I need to fix my array. This is from my instructor..Your program compiled and ran well. It implemented all of the requirements for the assignment. You have a separate class that stores your Product, and your products are stored in arrays. You also implemented methods to sort the …

Hi guys, I'm new to this forum and I have been studying Python for about 2 weeks. I know most of the beginners can solve all their doubts just by looking at the documentation, but even reading about these modules: time, datetime and threading, I wasn't able to solve one …

Hey everyone, I have a Matlab code that parses data from a csv file, performs some calculations on the data, and spits it back out into a new csv file. the new csv file contains all the data from the original file, with the new calculations appended on at the …

Hi! I would like to zoom in & zoom out an image in JLayeredPane. Now I have a snippet for loading a background image into JLayeredPane. How could I now access ALL content images of JLayeredPane (it could contain multiple images) and zoom them in/out? Perhaps, somebody could send me …

Frndz, I want to now how to start learning C/C++ programming in my pc. means there is a problem with installation of normal turbo c in my computer. it is not working. [COLOR="Green"]So what software i have to install? From where i can download it? Is there any C++ software …

I'm new to scripting. I'm trying to find out how to target my cout to a field in a gui. Any direction will be greatly appreciated.

Ok this is very strange and i cannot see where is the problem and i guess is really easy but i cannot see it so i will need your help :-O My Declarations [CODE]int myGraph[4][4]; int vertices[4]; char path[4];[/CODE] My initialize code [CODE]for(int i=0; i<=4;i++) { for(int z=0; z<=4; z++) …

Why won't this work? I'm trying to make a ball appear and move along my screen but it's failing :'( . I'm :( and also trying to make it so when you press any key it restores the full screen but that's also failing. :'( Can anyone help? [CODE]import javax.swing.*; …

when i execute the below progam i am getting this errror [ICODE]type or namespace definition, or end-of-file expected in c#[/ICODE] [CODE] using System; class Program { public static void Main(string [ ] args){ string[] colorList =new string[10]; colorList[0] = "sunday"; colorList[1] = "monday"; colorList[2] = "tuesday"; colorList[3] = "wednesday"; colorList[4] …

I have a function below which is supposed to read from a continuous updating file...by another program. for this reason I used a fileptr int to keep track of the last known good read so this index value is updating correctly but it is not being used by getline. and …

Hello, I am new to Perl - and so far I am enjoying it. Unfortunately I do not have the luxury to start completely from scratch. I have here a problem that i am struggling to solve. I have spent [B]many[/B] hours trying to solve this issue without any success, …

Hi, I'm a bit stumped. I'm trying to find out a way to make a bullet fly from a spaceship. So far, I managed to make it work but it attaches onto the coord's of my ship image(I used the position of this to map the starting position of my …

Hello, I'm having little trouble solving this question correctly. first of all, I keep failing at testing most of these methods, and I don't know where did i go wrong for them not to work. thus, i'm not able to know if it's solved correctly or not. Question is: 1.CountNumbers …

Hi guys, I'm trying to create a 2D array of JLabels my first problem is actually creating them. my code atm is = [CODE] package test; import java.io.File; import javax.swing.JLabel; import javax.swing.JPanel; public class testing extends javax.swing.JFrame { /** Creates new form testing */ public testing() { initComponents(); for(int i …

I'm doing a java project where one of it's parts is to add college courses to an arraylist. This college courses has their class code like ccom 3001, how many credits does that class have and the complete name of the course, like Programming I etc. The only thing I …

I have the following code for Quick Sort procedure: [CODE] #include<stdio.h> void Quick_sort(int *arr,int left,int right); int Partition(int *arr,int left,int right,int pivotindex); int main() { int a[20],n,ctr=0,j=0; printf("\nEnter number of elements:"); scanf("%d",&n); printf("Enter array elements:"); while(ctr<n) { scanf("%d ",&a[ctr]); ctr++; } Quick_sort(a,0,n-1); printf("\nSorted Array:"); while(j<n) { printf("%d ",a[j]); j++; } …

hi friends, i want to make software in C#.net (new user of C#.net), on "Clothes shop for men". Can anyone suggest some help.

Hello everyone! I am programming a vector which stores a name and a number. [code] typedef pair<int,string> Users_Pair; vector<Users_Pair> Users_Name; [/code] And the vector expands and contracts through out the life of the program. But when I use erase all elements above the one being erased loose their string? I …

Hello all. Can anyone here help me create a separate function for the socket() API in socket programming? I successfully created one in Linux before but so far I can't do the same in Windows. The Windows version can't successfully connect using the separate socket() function. My primary suspect is …

Hey All. I'm needing a fully transparent label to rest over a picture field that gets resized from calculations. The picture field is simple a background image in a PictureBox that represents a percentage of a whole. The label stores the actual percentage text. Here's the issues I've come across: …

Hi I have the following coding whereby I am trying to show Properties that have their price within the from and to drop down menus. However it only works well when the from price is set to 0. when I do price from 1000 to 800000, properties within that range …

Hello all, I have a windows application with a DataGridView. I have successfully bound the DataGridView to a datasource (datatable based on database query). I would like one of the columns to be a ComboBox that is selected to the correct datasource value, yet upon click displays data from a …

I'm trying to complete the good old Knight's tour (Knight piece must touch every square on board without touching a square twice. My code goes all the way to the point where the knight is at a dead end, and I need to revisit the last stack... How do you …

so, i want to save my listView Items as i save Location or Size of window in the Project settings. for example: [CODE] private void Form1_Load(object sender, EventArgs e) { this.Location = Properties.Settings.Default.MyLoc; } private void Form1_FormClosing(object sender, FormClosingEventArgs e) { Properties.Settings.Default.MyLoc = this.Location; }[/CODE] how can i do that? …

hi, php have thi svery nice function strtoime() int strtotime ( string $time [, int $now ] ) The function expects to be given a string containing an English date format and will try to parse that format into a Unix timestamp (the number of seconds since January 1 1970 …

Consider the error in following program- [CODE] #include<stdio.h> #include<conio.h> #define MAX 100 struct stacktype { int stack[MAX]; int top; } ; void push(struct stacktype * s,int item) { if(s->top==MAX-1) { printf("Overflow"); return; } s->top++; s->stack[s->top]=item; } int pop(struct stacktype *s) { int item; if(s->top==-1) { printf("UnderFlow"); return -1; } item=s->stack[s->top]; …

I am formally studying VB.NET and the teacher has temporarily left us with a textbook to study. In a chapter on Arrays an example of actual code is given, as shown at the bottom here. We use Microsoft Visual Basic 2008 Express edition for our code. However a simple Copy&Paste …

Hellooo guys could any one help me pllz i have a final exam tmw :( and the exam is Write a program that read 5 integers numbers and print the largest and smallest numbers By using IF statements :(

...so I'm trying to make a program that takes in the three sides of a triangle and then decides whether the triangle is equilateral, isosceles or equilateral. I have to have 2 different functions and I can't use global variables ( That's what my teacher wants ). My main function …