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How to convert nanoseconds to seconds using the TimeUnit enum?

Well, you could just divide by 1,000,000,000: long elapsedTime = end - start; double seconds = (double)elapsedTime / 1_000_000_000.0; If you use TimeUnit to convert, you’ll get your result as a long, so you’ll lose decimal precision but maintain whole number precision.

What is the difference between Python’s list methods append and extend

append appends a specified object at the end of the list: >>> x = [1, 2, 3] >>> x.append([4, 5]) >>> print(x) [1, 2, 3, [4, 5]] extend extends the list by appending elements from the specified iterable: >>> x = [1, 2, 3] >>> x.extend([4, 5]) >>> print(x) [1, 2, 3, 4, 5]

Here’s pig latin dialect that takes into account how the words are pronounced: #!/usr/bin/env python # -*- coding: utf-8 -*- import re sentences = ["Pig qoph an egg.", "Quiet European rhythms.", "My nth happy hour.", "Herb unit -- a dynasty heir."] for sent in sentences: entsay = " ".join(["".join(map(to_piglatin, re.split("(\W+)", nonws))) for nonws in sent.split()]) print(u'"{}" →…

What does “Object reference not set to an instance of an object” mean?

I am receiving this error and I’m not sure what it means? Object reference not set to an instance of an object.

How do I rename a local Git branch?

To rename the current branch: git branch -m <newname> To rename a branch while pointed to any branch: git branch -m <oldname> <newname> -m is short for --move. To push the local branch and reset the upstream branch: git push origin -u <newname> To delete the remote branch: git push origin --delete <oldname> To create a git rename alias: git config --global alias.rename 'branch -m' On…

Discord bot in Python – no commands are working

I want to create a bot that will respond to commands with arguments. I have gotten it to respond to strings in messages, but when i try to make commands working, the bot seems not to react at all. I have studied the documentation, put a lot of effor into trying to find the answer on the internet, but no help. My code can be the exact same as someone else’s on the internet, but the bot never…

Python unexpected EOF while parsing

Here’s my python code. Could someone show me what’s wrong with it. while 1: date=input("Example: March 21 | What is the date? ") if date=="June 21": sd="23.5° North Latitude" if date=="March 21" | date=="September 21": sd="0° Latitude" if date=="December 21": sd="23.5° South Latitude" if sd: print sd And Here’s what happens: >>> Example: March 21 | What is the date? Traceback (most recent call…

1000 * 60 * 60 * 24 * 30 results in a negative number

You are multiplying ints together, and overflow occurs because the maximum integer is 2^31 - 1. Only after the multiplications does it get converted to a long. Cast the first number as a long. long days_30 = (long) 1000 * 60 * 60 * 24 * 30; or use a long literal: long days_30 = 1000L * 60 * 60 * 24 * 30; That will force long math operations from the start.

What is a segmentation fault?

Segmentation fault is a specific kind of error caused by accessing memory that “does not belong to you.” It’s a helper mechanism that keeps you from corrupting the memory and introducing hard-to-debug memory bugs. Whenever you get a segfault you know you are doing something wrong with memory – accessing a variable that has already been freed, writing to a read-only portion of the memory, etc.…

SyntaxError: unexpected EOF while parsing

The SyntaxError: unexpected EOF while parsing means that the end of your source code was reached before all code blocks were completed. A code block starts with a statement like for i in range(100): and requires at least one line afterwards that contains code that should be in it. It seems like you were executing your program line by line in the ipython console. This works for single statements…

How do I check out a remote Git branch?

The answer has been split depending on whether there is one remote repository configured or multiple. The reason for this is that for the single remote case, some of the commands can be simplified as there is less ambiguity. Updated for Git 2.23: For older versions, see the section at the end. With One Remote In both cases, start by fetching from the remote repository to make sure you have all…

How to delete a cookie?

Is my function of creating a cookie correct? How do I delete the cookie at the beginning of my program? is there a simple coding? function createCookie(name,value,days) function setCookie(c_name,value,1) { document.cookie = c_name + "=" +escape(value); } setCookie('cookie_name',mac); function eraseCookie(c_name) { createCookie(cookie_name,"",-1); }

The difference between n++ and ++n at the end of a while loop? (ANSI C)

The only difference between n++ and ++n is that n++ yields the original value of n, and ++n yields the value of n after it’s been incremented. Both have the side effect of modifying the value of n by incrementing it. If the result is discarded, as it is in your code, there is no effective difference. If your program is behaving differently depending on whether you write n++; or ++n; it must…

individual Emoji Symbols Separated into Three Symbols

If you launch TextEdit and choose Emoji & Symbols under Edit, you will have a list of 291 symbols for Smileys and People under Sierra (macOS 10.12). And I want to list all these 291 emoji symbols with NSCollectionView. Now, I have a string consisting of 291 emoji symbols. And I separate them to create an array as follows. class SmileyViewController: NSViewController, NSCollectionViewDelegate,…

Praw & Discord.py: The bot keep sending the same meme. I want the bot to send different meme whenever it is asked

There is no need for you to iterate over anything. Praw provides a method which allows you to grab a random submission from a subreddit. Documentation: random() Code: @nd.listen() async def on_message(message): if message.author == nd.user: return def findCoindences(w): return re.compile(r'\b({0})\b'.format(w)).search content = message.content reaction = "👍" if…

api-ms-win-crt-runtime-l1-1-0.dll is missing when opening Microsoft Office file

The default solution is to install KB2999226 of Microsoft.

Finding white rectangle in an image

This is very rough, but successfully finds all the white pixels in the image, more checking can be done to ensure it is the size you want and everything is there but the basics are there. PS: I have not tested with your image. r and this.rc is picture size and p and this.px is the inner rectangle size public static void main(String[] args) { JFrame frame = new JFrame(); final int r = 100; final…