c – I don’t know why UDP winnsock Chat Program returns -1 value from recvfrom and sendto

Currently, we are producing UDP chat programs using MFC and C. I’m working on both bind because I have to send incoming messages from the server and client An error occurs when recvfrom and sendto return -1. I don’t know what the problem is I searched it and did what I did, but it’s not … Read more

JavaFX program with MySQL isn’t working because “this.Music” is null

Need help! I don’t quite understand what’s wrong with my code – can someone point it out to me, please? I am working on JavaFX, creating a program with two windows. In the second window, there is a table with columns. I created my database in MySQL, added some data to it, and it works … Read more

Event-Driven Hello World Program – DZone Microservices

Event-driven microservices can be straightforward to describe before implementing, testing, and maintaining. They are also highly responsive to new information in real time, with latencies in Java of below 10 microseconds 99.99% of the time, depending on the functionality of the small, independently deployable microservice. In this introductory article, we use an example event-driven Hello … Read more

windows – GOLANG ‘ x86_64-w64-mingw32-g++ failed: exit status 1’ when building GO program using github.com/AllenDang/giu and github.com/gordonklaus/portaudio

windows – GOLANG ‘ x86_64-w64-mingw32-g++ failed: exit status 1’ when building GO program using github.com/AllenDang/giu and github.com/gordonklaus/portaudio – Stack Overflow … Read more

python – Why deploying Numba and using arrays instead of class gives different results for the same parameters in my program?

The bounty expires in 4 days. Answers to this question are eligible for a +50 reputation bounty. Lost wants to draw more attention to this question. So, to summarize I have the exact same parameters for my code but with three different methods: Defining a class for my list of particles SP with … Read more

python – How can I make the zombies in the program chase after other beings and eat them?

import random from numpy import sqrt class Being(): def __init__(self, limits, name): self.row = random.randint(0, limits[0]) self.col = random.randint(0, limits[1]) self.name = name self.infected = False self.dead = False self.zombie = False def getRow(self): return self.row def getCol(self): return self.col def getName(self): return self.name def lure(self, limits, beings): self.row += random.randint(-1, 1) self.col += random.randint(-1, … Read more

Learning Python With Program Templates: Select From Alternatives (Part 1) | by Mike McMillan | May, 2022

A fun way to create a flexible program Photo by Alex Kotliarskyi on Unsplash In this article, I’m going to introduce the Select From Alternatives program template. This template provides the programmer with a process for making decisions in their programmes. The template is implemented using Python’s if statement. Many programming languages ‚Äč‚Äčalso provide the … Read more

python – How do I execute a program or call a system command?

How to execute a program or call a system command from Python Simple, use subprocess.runwhich returns a CompletedProcess object: >>> from subprocess import run >>> from shlex import split >>> completed_process = run(split(‘python –version’)) Python 3.8.8 >>> completed_process CompletedProcess(args=[‘python’, ‘–version’], returncode=0) (run wants a list of lexically parsed shell arguments – this is what you’d … Read more

vhdl – i keep on getting these erros when i try to program the FPGA on the MachX03 series development board. Can someone please help me fix these?

This is my code; library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_arith.all; use ieee.std_logic_unsigned.all; entity CC2510_prac3 is port(clkin: in std_logic; reset: in std_logic; SW3: in std_logic; SW2: in std_logic; SW1: in std_logic; com: out std_logic; D2_out: out std_logic_vector(6 downto 0); D1_out: out std_logic_vector(6 downto 0); D0_out: out std_logic_vector(6 downto 0); DP1_out: out std_logic; DP2_out: out std_logic; LED_out: … Read more