Software Development Forum

## Introduction ## Java 14 was released with a new type of expression called Switch Expression. Its syntax is similar to that of the Switch Statement, with a few differences. In this tutorial, we will walk through concepts related to the Switch Expression and learn how to use it. ## …

## Introduction ## In this tutorial, we are going to learn how to create a Java module by hand. ## Goals ## At the end of this tutorial, you would have learned: 1. What a `module-info.java` file is. 2. How to compile a module. 3. Describing a module. ## Prerequisite …

This code causes an exception: dim box as new mult() box.show <-------- cannot access a disposed object

Got this to open a browser inside a specific frame, and i need it to be changeable, any ideas? been readin pyqt5 but cant seem to manage this import sys from tkinter import Tk, ttk from PyQt5.QtCore import * from PyQt5.QtWidgets import * from PyQt5.QtWebEngineWidgets import * mainwind = Tk() …

hi, I put a button to run the batch file and everything is fine But when the file works it asks for other files that are complete to run it and I did not know how to merge it together to work properly and these pictures    

## Introduction ## Based on the 2020 Java Ecosystem survey from Jetbrains, 75% of Java developers are still using JDK 8. JDK 11 introduces `HttpClient`, which replaces the legacy `HttpURLConnection` API. For this tutorial, we will build a `HttpClient` that consumes the free Cat Facts API. ## Goals ## At …

## Introduction ## `partitioningBy()` collects a `Stream` into a `Map`. In this tutorial, we will compare the two different `partitioningBy` methods and learn how to use them. ## Goals ## At the end of this tutorial, you would have learned: 1. What `Collectors.partitioningBy` does and how to use it. ## …

## Introduction ## This tutorial introduces the `CyclicBarrier` class and teaches you how to use it. ## Goals ## At the end of this tutorial, you would have learned: 1. How to use `CyclicBarrier` to synchronize tasks across multiple threads. ## Prerequisite Knowledge ## 1. Intermediate Java. 2. Basic knowledge …

please give the program for sorting a linked list without affecting the original value

I found this peaice of code to import a Access database table to sql server Private Sub btnImport_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnImport.Click Dim fileName As String = "" Dim ofd As New OpenFileDialog If ofd.ShowDialog = Windows.Forms.DialogResult.OK Then fileName = ofd.FileName PerformImportToSql(fileName) End If End …

## Introduction ## This tutorial teaches you how to implement the Type-safe Builder pattern using Kotlin. This pattern allows developers to create declarative and concise DSLs. Our implementation will be a Burger Builder that enables our users to create Burger objects expressively. ## Goals ## At the end of the …

I am in trouble. I need to convert a signed 16-bit Hexadecimal no to short. Say I have a string s = "f2f7" Which is a negative number and lies in the range -32768 to 32767 so is the range of type short. But when I do short num ; …

I am attaching my complete code. I am not able to get why doesn't my KeyListener work. None of the KeyListener events are fires on pressing the keyboard. Please have a look and tell me the flaws in my code package swing; //First Class (separated class) import javax.swing.JFrame; public class …

Need to make independent charts for current month, last month and since the beginnig of the year. Been trying to make the table and then make the bar charts, got so far but cant seem to populate my code in order to build the tables with the specific data from …

plz help me..with the program for two wire intercom using embedded c program in atmega8

Hello fellas, recently i hit upon an to develop a small program to lock screen. As a part of it, I need to lock taskbar from functioning, i.e should not show up when pressed Start Button, or Ctrl + esc or not even Ctrl + alt + Del. I dont …

Hi, how would I use mouse_event to simulate the mouse wheel? I can only do clicks. [Code=C++] void Left_Click(const long x, const long y) { mouse_event(MOUSEEVENTF_LEFTDOWN, x, y, 0, 0); mouse_event(MOUSEEVENTF_LEFTUP,x,y,0,0); } void Right_Click(const long x, const long y) { mouse_event(MOUSEEVENTF_RIGHTDOWN, x, y, 0, 0); mouse_event(MOUSEEVENTF_RIGHTUP, x, y, 0, 0); …

Hi all, I have 2 form and a main.py in the project: ffrend.py and fmain.py main.py: from PyQt4 import QtCore, QtGui from fmain import * if __name__ == "__main__": import sys app = QtGui.QApplication(sys.argv) MainWindow = QtGui.QMainWindow() ui = Ui_MainWindow() ui.setupUi(MainWindow) MainWindow.show() app.exec_() fmain.py (there is a button to execute …

This is a simple archery Game developed in C language . The aim of the game is to shoot the balloons and score as much points as you can . The game have three levels. Platform used is Turbo C++ IDE . Standard Graphics.h functions are used.

Hello , i am using free 3 of 9 barcode to create a bar code of each student in my DB , the problem that in my card it is not shown as it is supposed to be but as *98777*  so any one knows how i can solve …

/*******************************************************************************************************************| | Assignment 2 | | Program is meant to extract a record from each file and create a new file for each record | | Programs creates a new directory and uses the directory for each new file | | | | written by Raymond Chappel | | | …

Good day ^^ I want to create a program using tasm that will tell if the inputted string is a palindrome or not....but i don't know how will i get the first and last char to compare..unlike in C..i can use the strlen....XD Please make the codes very simple ^^..tnx …

I would like through a list or dict populated by a text to create a frames, this way I could update an app without having to mess with the code, can someone help me? Seria algo assim: vars.txt: > tab1 <-> nome1 > tab2 <-> nome2 > tab3 <-> nome3 …

Hi, I'm trying to desirealise the json data from a external file where i want to read the key and fetch another dictionary value based on key please letme know if i can read dictionary inside dictionary , I have tried using DIctionary<string,object> where as am looking for Dictionary <string,Dictionary<string,string>> …

how to paste program in turbo c++ ?

I am trying to run my game in Python, with Pygame. However, I am presented with a black screen, but my game shows up for a fraction of a second after I exit the Shell. What's wrong with my code, I think it's an issue with my timer. # Import …

Hi, the scenario is: I run an apartment complex, someone comes in to pay their rent. I fill in an html form to record payment(update "payments" database table) and print a receipt. I hope u will look at it and offer advice. I hope to combine both the payment and …

I am using CPU Sim to change wombat1 to wombat2 by adding stack. I have done adding a Stack RAM and a Stack pointer SPR. I have implemented a push instruction as such: acc->mdr mdr->Stack[SPR] End The implementation is able to push the acc value to Stack but not able …

1.2 Convert the following classes to valid C# classes: SemiDiode + ForwardV {get; set; }: Double +ReverseV (get; set; }: Double +BreakdownV {get, set; }: Double + Semi Diode) + SemiDiode(forwardV: Double, reverseV: Double, breakdownV: Double) +ToString(): String Laser LED wavelength: Int32 -color: String +Wavelength {get; set; } : Int32 …