Software Development Forum

I trying to write a `spring batch` using `SpringBoot`. At first the program will read data from database, then write it to `.csv` file format. This is the code I have tried **Reader** @Bean public ItemReader<A> Reader() throws Exception { List list = new ArrayList<>(); JdbcCursorItemReader<A> reader = new JdbcCursorItemReader<A>(); …

Hi all, So before I went and posted ~800 lines of code, I have 2 questions: 1: What is the preferred way for us to post "complex" C++ (of course, this is just a .h, .cpp, and main cpp but it's still a lot of lines) that wont just be …

Anyone know of a way to obtain an MD5 checksum of a file (through HTTP) before downloading it through HTTP?

I'm trying to write a program in C# that downloads a file from my DropBox account but I keep getting an error with `var task = Task.Run((Func<Task>)Download("", "largetest.mpk", folderName));` The error: Cannot convert type 'System.Threading.Tasks.Task' to 'System.Func<System.Threading.Tasks.Task> I've been trying to figure it out for multiple hours and haven't had …

Hi, Please help in the below task using perl script compare file1 and file2 and print the updated line in file2, should print new line added in file2 and print missing line from file2

Hi! I have encountered a small issue when attempting to create getters and setters in C#. I've been following along a course in unity and tried to replicate what the tutor had written in his C# scripts. As far as I can tell, everything is spot on and I can't …

Is it possible to know which connection sent data wiht recv()? Current setup is - Main Thread spins and waits - Thread 1 - do stuff unimportant to socket - Thread 2 - accept() -> keep linked list of accetpted sockets - Thread 3 - recv() -> can I know …

Hi can someone give me the code how i make the first and last word of a string to Propr case The folowing gives all words to proper case Dim plaats As String = Replace(TextBox1.Text, "'", "''") plaats = StrConv(plaats, VbStrConv.ProperCase) I want, shall we say: "ohe en laak" to …

Hey guys this is my first time using this site. Im having trouble creating a grading scale that averages out grades. Whenever I enter the grades in from the console I get some odd answers that make no sense. Can someone give me some pointers in the right direction? public …

Hello, I would like to develop a sprite editor. Therefore I have programmed a software like paint. As you can see on the picture, on the right, there is a canvas with a grid on it. I use a GridBagLayout to manage every widgets inside my window. The canvas is …

i have 3 table i inner join with 3 table and add function but now getting error please help me how to solve the the problem please help me ERROR :Msg 8120, Level 16, State 1, Line 1 Column 'TBL_pur_inv.invno' is invalid in the select list because it is not …

How to the excel data please help me In the original excel sheet data show column wise. But now I want to same change to data showing structure and re arrange the data structure. I can't upload the excel sheet that for i attached the IMG please help me https://ibb.co/jdzC4m …

I feel hard to understand how the LayoutManager work even the GUI is quite simple. I trying to make the button place below the Tel No JTextField, but it placed beside Address JTextField , not below TelNo JTextField. package gui; import java.awt.BorderLayout; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import javax.swing.Box; …

Inside of a class template having parameter `typename T` the compiler generates an error concerning 2 functions. `T` does not seem to be recongnized as the template class parameter it was declared as. template <class Return, class ...Args> void executeOnAll(Return (T::*function) (Args &&...), Args &&...args) { for(T &s : *this) …

[CODE] #include <stdio.h> #include <stdlib.h> typedef struct filedata { char data[100]; }data_t; data_t * fname=NULL; //IS AN ARRAY OF the structure filedata REQUIRED HERE void quit() { printf("\nPress enter to exit"); fflush(stdin); getchar(); } int main() { char ch; fname=(data_t *)malloc(sizeof(data_t)); FILE *fptr=NULL; atexit(quit); printf("Please enter the file name to …

What are Similarities and differences, written in concise form? Thanks!

Hi, I got a project to load a pdf into a picturebox in vb6. How do I handle that? Is there anyone who sell that .ocx? is there anyway to do it? Thanks

hi. i have a really basic question (really new to python). how do i read an entire binary file? from https://www.devdungeon.com/content/working-binary-data-python , `data = binary_file.read()` is to read the whole file at once. so i have a .dng file to test, which is 16.2mb, and i did: with open("portrait1.dng", "rb") …

I managed to get the value of an enum via reflection. I have to use reflection since I have different objects with enums in them. But how do I get the name of the enum? Let's say I have [CODE] enum MyEnum { A, B } [/CODE] I can get …

I am trying to understand the SynchronizedMap and I ran the below code. I get the below Output with an exception. According to my understanding the exception is caused when the get() methods are trying to access the syncmap when a thread is still executing a write on the map …

This is my custom module: [CODE]class Player(object): def __init__(self, name, score = 0): self.name = name self.score = score def __str__(self): rep = self.name + ":\t" + str(self.score) return rep def ask_yes_no(self, question): response = None while response not in ("y", "n"): response = input(question).lower() return response def ask_number(self, question, …

Hi. I have a .raw file and I want to display it as hex. why? because i want to try and replicate what 010 Editor can do which is read any sort of file and display in whatever format user desires (plus it can be used to edit and stuff) …

I was wondering what would be the best way to implement an algorythm to figure out what side a circle has collided with a rectangle? After check to make sure a circle has collided with the rectangle im trying to figure out how to know what side of the rectangle …

Hi Guys, Im currantly having a problem with simulating balls bouncing of each other in a 2d space, everything is working and all, but it just doesant seem natural for me... If we had any math wizzes here now is your time please:) my circles are painted inside of rectangles..... …

Hi Guys Its me again, wasnt sure if i should start a new thread so i just did :) I completly redid the code Now im having a problem with the renderer again. It called called in the timer of the controller class... but it doesant get called? Also my …

Windows 10 has a nice date and time display in his taskbar, it is becoming more difficult for me to see , unless I open it. Becoming older and older my eyes are not that ‘fresh’ as they used to be, so I decided to make a bigger time display …

Currantly trying to make a simple game but i cant get the renderer to repaint. My problem is that i used to make everything in 1 class... much simpler. But now im just not sure anymore. This is what i have so far... it just wont repaint. (Note i have …

Hi! I have developed a desktop application in java. Now I want to do payment integration with this app. Actually I have to do payment integration for first time in my life. So i have some questions/confusions for payment integration. But before asking those questions I tell you that what …

Hi Guys Just starting to make my first java game, im getting a few errors. Im just trying to figure a few things about about the game loops before i get started and this is driving me crazy when i just call the renderer to repaint after i initialize the …

Hello all, i need your help regaring this code, which is in python and i need to convert it into mips?? register $s0 holds the base address of list my_data, $s1 holds the length of the list my_data, register $s2 holds the base address of list my_data2 and $s3 holds …

Use a **for** loop to find the smallest integer n such that n^3 is greater than 1000 So I came out with below code public class Chapter4 { static int n = 0; public static void main(String[] args) { for (int i = 1; Math.pow(i, 3) <= 1000; i++) { …

Write a program that displays all numbers divisible by 3 and 4 within a range entered by user. Display five numbers per line. Numbers are separated by exactly two spaces. This is my code public class Chapter4 { public static void main(String[] args) { Scanner input = new Scanner(System.in); final …

So, i'm working on a layout that has to be in xhtml.. i changed the extension from html > xhtml and i got this prompt.. "This page contains the following errors: error on line 15 at column 8: Opening and ending tag mismatch: link line 0 and head Below is …

Preconditions: Addresses of 2 integer variables are on the stack as the parameters. Sample c call: swap( &num1, &num2); You must implement the following C swap function: /* Swaps the two values pointed to by x_ptr and y_ptr. */ void swap (int *x_ptr, int *y_ptr) { if (x_ptr != y_ptr) …

For all the above functions i get "`*****' was not declared in this scope". I searched days for an answer to find out what am i doing wrong, and what do i have to do to make it work, but all i could find, peaople saying: it depends on the …

Hi guys have a python software that i want to freeze for distribution. The problem is after freezing it with cx_freeze and i run it, it works fine on my development computer but when i sent it to my testing computer (window XP sp3 32bit) it give me this error …

Sir Please help me about MenuStrip Control used. I create a project there one parents form and two child form MenuStripControl-1 is on parents form (main_form) Menu Item name a) Trans. b)Report c) Setting and MenuStripControl-2 is on child form (purchase_Entry_Form) Menu Item name a) File. b)Close I want to …

Hi, I want to find all the words(scabble words) that can be made out of given set of letters. ex: abnana results: a aa ab an baa ban banana na nab How could i achieve this? Do i need a binary tree? Plz some one help me...

how to reverse words in a sentence without using split or string tokenizer. I/p :- how are you O/p :- you are how

Hello, this is my first post here. I'm playing around with Gtk+ and Xlib. I'm trying to get the X window ID of the active window, and then display that ID in a Gtk label. However, when I run it, it seg faults. I've narrowed it down to `XGetInputFocus`, but …

Is there any method in java to generate random number (integer, byte or float). please tell me if any i need it in my program. if possible please give full example. thanks.

Hello i am getting these error node sass could not find a binding for your current environment windows 64-bit with unsupported runtime (59) when i am typing `ionic serve` on my command prompt does anyone knows how can i fix it?

I can't slove this problem my code print nothing what's wrong with it ?? #include <stdio.h> #include <string.h> #include <ctype.h> #define total 1000 int weight (char word[total]) { int i; int sum; for (i=0;word[i]!='\0';i++) { sum+=i; } return sum; } char *getword (char temp[total]) { static char max[total]={'\0'}; int lenth,maxlenth; …

Hello, Please, i dont know why my implementation is failing the testDemo Fucntion.. Below is the full code. it is Failing operator < .... testLessThan interface: #ifndef DATE_H_ #define DATE_H_ #include<iostream> using namespace std; class Date; ostream &operator<<(ostream&, const Date&); istream &operator>>(istream&, Date&); class Date { private: int month; int …

Hi all.. How i can make a report without using database. Data can directly from the active form. Thank you in advance

Like the title asked, what should i do to change the cursor into custom image when the form is loaded, i've tried so many style by google searching, but still can' work. :/

Guys, I am trying to change the background color of my window in WxPython. Here is what I got: Why doesn't it work? [CODE]import wx class my_window(wx.Frame): def __int__(self, parent, id): wx.Frame.__int__(self,parent,id,'My Window', size=(300,200)) self.Colours() def Colours(self): self.pnl1.SetBackgroundColour(wx.BLACK) if __name__ == "__main__": app=wx.PySimpleApp() frame=my_window(parent=None,id=-1) frame.Show() app.MainLoop()[/CODE]

Good man James helped me learn die roll board game programming in Java, and I applied it on Ladders and Snakes. Made one in Java. Now I'm learning to do it in Android. Here's the question: Making simple Ladders and Snakes game. Can't use those in Google Play, they don't …

I need to convert hours into weeks, days, and hours. My professor was hinting that there might be a way to do this using the modulus operator but I can't seem to think of a way that its possible. Can anyone help? thanks!

Hello, everybody. I was wondering if anybody could help me with something. I don't know if I'm taking things too fast but, I was wondering if somebody could help with this program I am making. I'm currently writing a "fake" bank script. Basically you start with a set amount of …