Software Development Forum

How to rollback the transaction while spring controller has runtime exception... i found some snippet from google i.e, @Transactional(rollBackFor = Exception.class) I think this only applicable for service class has the exception. I need to rollback controller class has any exception. forexample @controller public class test1 { public void testing() …

How to calculate big O, omega and theta of any algorithm?

hi all .I am trying to detect the edge using canny edge detection algorithm, I convert the image to gray and remove the noise and passing the sobel filter. but when I arrive to apply Non-maximum suppression, I didn't know how do it. please help me. I use vb.net 2010.

hi i'm having trouble in sorting the text file in inorder traversal can anyone help me out? code: #include <stdio.h> #include <conio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> struct TreeNode; typedef struct TreeNode *node; typedef char ElementType; struct TreeNode{ char element; node left, right; } *root; node insert(ElementType x,node t){ …

Apply undo,redo operations on string pool. please friends help me to get its answer.

i did 1 code for give me the menu position. but i'm getting problems compare the LPSTR or LPCSTR with string :( int GetMenuPosition(HMENU menu, string caption) { int i=0; for(i=0; i<GetMenuItemCount(menu)-1;i++) { MENUITEMINFO s= {0}; s.cbSize=sizeof(MENUITEMINFO ); s.fMask=MIIM_STRING; s.cch=strlen(strCaption.c_str()); //s.dwTypeData=(LPSTR)strCaption.c_str(); GetMenuItemInfo (menu,i, true, &s); string b=static_cast<char*>(s.dwTypeData); if(b==caption) break; } …

I'm pretty new to Java and I'm taking a class where I need to program an 8-Puzzle Problem in Java. I would love to be able to program it Java in Processing so that I could see the movment of the blocks. I'm generally a vidual learner.

I've written the following program..but it doesn't work. Why? It shows an error: `cannot convert ‘std::string* {aka std::basic_string<char>*}’ to ‘std::string** {aka std::basic_string<char>**}’ for argument ‘1’ to ‘void print(std::string**)’|` #include <bits/stdc++.h> using namespace std; void print(string *ar[]) { for(int i=0; i<5; i++) { cout<<*ar[i]<<endl; } } int main() { string s[5]; …

I'm trying to create a very simple enigma machine cipher. But mine doesn't decrypt the data correcly. #include <iostream> #include <string> using namespace std; const char alphabet[27] = { "ABCDEFGHIJKLMNOPQRSTUVWXYZ" }; const char reflector[27] = { "WSXRFVYHNIKPQAZEDCTGBUJMOL" }; const char rotors[27] = { "QWERTYUIOPASDFGHJKLZXCVBNM" }; /* Get the position of …

I am trying to read a line of numbers in string datatype then parse them into double before reading the next line. I get a nullpointerexception. I am trying to read numbers 4 5 2 first, parse them to double, then do some other calculations before going to the second …

I've been messign around with Python a little recently. Though I now want to import one of my .py files into my "main" file, but I get an `"module" object is not callable` error. How do I actually do this then. My files: KeyGenerator.py main.py Code I use to import: …

Im personally learning how to program in python though I do know of other languages. Is Python the best to learn off?

Hi guys, Stupid Question.... How can i group specific rows in a cxGrid (Express Quantum Grid 6)... this event will occur onClick... any ideas ??? Delphi 7....

I'm new at C++ ..and I dont know what should I do whith my program ... this program's input for exg. is: 5 mary sara kimi lili olive : : and then sorting them .. but my problem is that when I submit my home work they score me "0" …

Hi.I'm 16 years old and i am studying c++ at highschool.The thing is i really think what we do at class is really...useless(and easy). I mean i don't think it will help me a lot if i want to create an application... What should i learn? Where from? What do …

Hi, The meaing of ^[0-9] is to exclude the characters specified in the [..], but what is the meaning of ^[0-9][0-9]*$. The expression is used to get the process information from /proc , it lists all the PIDs of all running processes with some appended text. but could not understand …

I want start on driver development, but I am not getting any beginer tutorial or book, where I can some sample app. If any body have any good resource kindly share.. Thanks in advance.

Hi guys, After 10 days of googling and trying I finally must ask. This is not an assignment for school but its a practise one for the upcoming assignment in a few weeks. So i have the weights of 200 oranges in a csv file. With this csv file i …

//Hi all,could someone explain the make_shared(), is it used to substitute constructor? //Here is an example void DoAddStaff(vector<Ptr>& container) { cout << "\nEnter type of employee to add ('W' for waged, 'S' for salaried): "; char c; cin >> c; cin.ignore(); if( c == 'w' || c == 'W' ) …

I am working on a little project of mine. Nothing major, just messing around with encryption etc... I have problem thoug. My methods do not change the values of my data. Meaning that the pointer that I pass to hold my encrypted data, doesn't get the data assigned to its …

Hello all, zoidmaster here. I have a question regarding work with a MS Access database. I have the code written out from a tutorial I found online for a basic database, however all it can do with the database is read, add and delete lines from it. I'm trying to …

How do you via for loop to get the number? I know how the for work. for (int i = 0; i < 256; i++) { System.out.print (i) //That will print out 0 to 255 } how do you read by as byte while (read is not end) { // …

[QUOTE]guys, i need help on passing multiple values in a parameter field in crystal report viewer, I already set it to allow multiple values. When the code below executed it only displays the last record and not all of the records that appeared. here's my code. hope you help me …

hello friends i am trying to do an virus scanning file(antivirus)..i have spent more times but i cant please any one give me the sample source code i can modify it..i also tried CLAMAV but it is not used for me. thanks in advance...

I have commondialog that i can search for *.bmp,*.jpg files thats okej, now the problem is. saving the picture to the rot + filename next time I start the program I will change the picture to another file that shall be saved in rot + filename the first picture shall …

The program, which you will write, will be a console application of C++ and will read the file.txt file while separating the hidden countries and cities when it starts to work. Sample file (This is only a sample file, your program must read much longer files) Uruguay# Montevideo The USA …

I know how to get min and max value in a vector through iterators as shown below, But how about getting a min and max value of a matrix table in vectors of vector: for example i have: `vector<vector<float> > vec;` the above vector has a matrix (my program reads …

I'm doing a simple application of userregister from which I found on net but displays the error message HTTP status 404 not found by GlassFish server 4.1 in NetBeans using Oracle 10g

> unable to process the application .cant store user data into the data base,shows only a blank page # servlet code # import java.sql.*; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; @WebServlet(name = "register", urlPatterns = {"/register"}) public class Register extends HttpServlet { …

I've have a String String s = " ~ ( A || B ) && C "; A B C can take 0,1,x they follow Boolean Arithmetic w.r.t 'x' Boolean Arith is as follows 0 || x = x 1 || x = 1 x || x =1 x && …

This piece of code is far from perfect, but it works! It produces a list of substrings (consisting of digits and letters) and their delimiters. If it is practicaly a sin to manipulate the index of a for loop, then I'm a sinner. If two delimiters follow each other, an …

According to your variant write a program. That program reads a sequence of positive numbers from standard input. The sequence is terminated by number 0 and does not include that 0. For each number in sequence program should create a new thread. The thread gets some how the value of …

Hello, I have to subtacke index to number of file that reading in. and then find if there is having a space and counting how many space that have. But my code never excute the if statement. here is code for (int index = -128; index < 128 ; index …

hi i'm writting a program by lex and yacc. i want to add some invariants in some special of an input file. my expected output is the same input file while some invaraints are place through statements.how can i do it? i can transfor the input file to output in …

when i login it will come 2 form one is info and other one is register form when i login that time my info come out come a samll form say error complet the box it should not come out this..!! where go worng

Hello Guys, so I have this question today. let's say I defined a structure like this : struct List{ char *co; char *di; List* next; }; I wanted to define a function with a pointer to a list of elements of this structure as a parameter. In the body of …

Hi everyone. Im a bit new on visual basic programming language and I need your help connection visual basic with an ONLINE DATABASE. Im making a software for my school (is happening a small city competition about programming). I set everything up, just need to fix database online. anyone help …

Hello everyone, I'm currently trying to make my application start automatically on pc restart. Now could you help me out with this error: http://screencast.com/t/hmwYmvqg9jK Here is snippet: Dim regKey As Microsoft.Win32.RegistryKey regKey = Registry.LocalMachine.OpenSubKey("SOFTWARE\Microsoft\Windows\CurrentVersion\Run", True) regKey.SetValue(Application.ProductName, Application.ExecutablePath) regKey.Close()

I get the error "Syntax Error (missing operator) in query expression" sql = "SELECT Chores.ChoresID, Chores.ChoresDate, Materials.MaterialName, Advisers.AdviserInit, Advisers.AdviserSurname," _ & "Area.Area, Chores.StudentNo, Student.Forename" _ & "FROM Chores" _ & "INNER JOIN Materials on Chores.MaterialID = Materials.MaterialID" _ & "INNER JOIN Advisers on Chores.AdviserID = Advisers.AdviserID" _ & "INNER JOIN …

One of my students make me a question (which answer i know) but I think could be instructive to formulate the same question here so many people can learn about it. The question is: How to implement a copy assignment into a Derived class? Consider the following class A: class …

help me please

first class GUI - basically trying to use my stack calculation class to use in my first class GUI in my enter postfix expression actionPerformed area? What is the best step to add my stack calculation to evaluate an expression? import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.util.*; import java.util.LinkedList; …

Guys, I want to build Operating System. My Operating System will look like mixture of all the other Operating System currently in use and will have new extensions for every single thing and will run all the things of other extensions! The problem is i don't even know programming. Guess …

This snippet shows you how to animate a dice roll with the Tkinter GUI, useful for many games that require a dice to give a random number from 1 to 6. An interesting use of Tkinter's grid(), grid_forget() and after() functions.

I was looking at these two examples and I was curious what the difference is between JCheckBox and JCheckBoxMenuItem. http://www.macs.hw.ac.uk/cs/java-swing-guidebook/?name=JMenuBar&page=3 https://docs.oracle.com/javase/tutorial/displayCode.html?code=https://docs.oracle.com/javase/tutorial/uiswing/examples/components/CheckBoxDemoProject/src/components/CheckBoxDemo.java These pictures make it look they are the same except JCheckBox is not in a menu but it is easy to add to a menu with the menu_name.add(menu_item) command. …

Am looking for a way to download a image from a URL using twebbrower and to save it to a folder, it would access url and then have section for file name and folder name and then it would save the file as a jpg to the folder on drive. …

Hi! Newbie on Java. I'm doing this assignment for a cash register program. Our professor just explained what we're gonna do and stuff. Here's what i understood: 1.)Sales report (my code appears on the first diag box) Product ID Product Name Quantity Price 2 Stuff 100 3 Stuff 100 4 …