if let _ = detailInformation {
     loadDetailInformation()
}

when optionals are killing yourself

By gc, 2017-12-13 00:19:02
int t;

if ((t > 1) && (t < 2))
{
    errorString = errorBuffer;
	return -1;
}
By Anonymous, 2017-12-13 19:42:08
if (logger.isDebugEnabled()) {
			logger.debug("process (FollettPojo) - start");	
		}
String dnum = StringUtil.toCapitalizedString(pojo.getDnum().toString()); 
pojo.setDnum(new String(dnum));
	    
if (logger.isDebugEnabled()) {
    logger.debug("process (FollettPojo) - middle ");
}

String rawI = StringUtil.toCapitalizedString(pojo.getRawInput().trim().toString()); 
pojo.setRawInput(new String(rawI));

if (logger.isDebugEnabled()) {
	logger.debug("process (FollettPojo) - end ");
}
		
		
/* And you may ask what is this toCapitalizedString? Well here you go a separate class to boot */
	public static String toCapitalizedString(String string){
		StringBuilder strb = new StringBuilder();
		if(string != null && string.trim().length() > 0
				&& Character.isLetter(string.charAt(0))
				&& Character.isLowerCase(string.charAt(0))){

			strb.append(string.substring(0,1).toUpperCase()).append(string.substring(1));
			return strb.toString();
		}
		return string;

	}

SpringBatch this is the processor for each record...dnum example D00000000

By Albert, 2017-12-15 23:53:41
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
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.


   O | O | O 
  -----------
   O | O | O 
  -----------
   O | O | O 
     

 */
package tictactoe;

import java.util.Scanner;

public class TicTacToe {

    /**
     * @param args the command line arguments
     * @throws java.lang.InterruptedException
     */
    public static void main(String[] args) throws InterruptedException {
        Scanner input = new Scanner(System.in);
        String a1 = "1";
        String a2 = "2";
        String a3 = "3";
        String a4 = "4";
        String a5 = "5";
        String a6 = "6";
        String a7 = "7";
        String a8 = "8";
        String a9 = "9";
        int inO;
        int inX = 0;
        boolean winner = false;
        PrintBoard(a1,a2,a3,a4,a5,a6,a7,a8,a9);
        System.out.printf("How to play - wait for your turn and when it comes write the number of the field that you want to draw in (from 1 to 9)\n");
        System.out.printf("Player O's turn: ");
        inO = input.nextInt();
        while (true) {
            switch (inO) {
                case 1:
                    if (a1 == "1") {
                        a1 = "O";
                    }
                    break;
                case 2:
                    if (a2 == "2") {
                    a2 = "O";
                    }
                    break;
                case 3:
                    if (a3 == "3") {
                    a3 = "O";
                    }
                    break;
                case 4:
                    if (a4 == "4") {
                    a4 = "O";
                    }
                    break;
                case 5:
                    if (a5 == "5") {
                    a5 = "O";
                    }
                    break;
                case 6:
                    if (a6 == "6") {
                    a6 = "O";
                    }
                    break;
                case 7:
                    if (a7 == "7") {
                    a7 = "O";
                    }
                    break;
                case 8:
                    if (a8 == "8") {
                    a8 = "O";                        
                    }
                    break;
                case 9:
                    if (a9 == "9") {
                    a9 = "O";
                    }
                    break;
                default:
                    System.out.printf("An error occured. Please accept it politely and restart the game.");
                    break;
            }
            System.out.printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
            if (null != Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9))switch (Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9)) {
                case "NONE":
                    if (a1 != "1" && a2 != "2" && a3 != "3" && a4 != "4" && a5 != "5" && a6 != "6" && a7 != "7" && a8 != "8" && a9 != "9") {
                        winner = true;
                        System.out.println("DRAW!");
                        Thread.sleep(3000);
                        break;
                    } else {
                    PrintBoard(a1,a2,a3,a4,a5,a6,a7,a8,a9);
                    System.out.printf("Player X's turn: ");
                    inX = input.nextInt();
                    break;
                    }
                case "X":
                    winner = true;
                    System.out.println("X HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                case "O":
                    winner = true;
                    System.out.printf("O HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                default:
                    break;
            }
            if (winner) {
                break;
            }
            switch (inX) {
                case 1:
                    if (a1 == "1") {
                    a1 = "X";
                    }
                    break;
                case 2:
                    if (a2 == "2") {
                    a2 = "X";
                    }
                    break;
                case 3:
                    if (a3 == "3") {
                    a3 = "X";
                    }
                    break;
                case 4:
                    if (a4 == "4") {
                    a4 = "X";
                    }
                    break;
                case 5:
                    if (a5 == "5") {
                    a5 = "X";
                    }
                    break;
                case 6:
                    if (a6 == "6") {
                    a6 = "X";
                    }
                    break;
                case 7:
                    if (a7 == "7") {
                    a7 = "X";
                    }
                    break;
                case 8:
                    if (a8 == "8") {
                    a8 = "X";
                    }
                    break;
                case 9:
                    if (a9 == "9") {
                    a9 = "X";
                    }
                    break;
                default:
                    System.out.printf("An error occured. Please accept it politely and restart the game.");
                    break;
            }
            System.out.printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
            if (null != Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9))switch (Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9)) {
                case "NONE":
                    if (a1 != "1" && a2 != "2" && a3 != "3" && a4 != "4" && a5 != "5" && a6 != "6" && a7 != "7" && a8 != "8" && a9 != "9") {
                        winner = true;
                        System.out.println("DRAW!");
                        Thread.sleep(3000);
                        break;
                    } else {
                    PrintBoard(a1,a2,a3,a4,a5,a6,a7,a8,a9);
                    System.out.printf("Player O's turn: ");
                    inO = input.nextInt();
                    break;
                    }
                case "X":
                    winner = true;
                    System.out.println("X HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                case "O":
                    winner = true;
                    System.out.println("O HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                default:
                    break;
            }
            if (winner) {
                break;
            }
        }    
    }
    
    public static void PrintBoard(String f1, String f2, String f3, String f4, String f5, String f6, String f7, String f8, String f9) {  
        System.out.printf("   %s | %s | %s \n",f1,f2,f3);
        System.out.printf("  ----------- \n");
        System.out.printf("   %s | %s | %s \n",f4,f5,f6);
        System.out.printf("  ----------- \n");
        System.out.printf("   %s | %s | %s \n",f7,f8,f9);
        System.out.printf(" \n");
    }
    
    public static String Winners(String f1, String f2, String f3, String f4, String f5, String f6, String f7, String f8, String f9) {
        if (f1 == f2 && f2 == f3 && f3 == "O") {
            return "O";
        } else if (f4 == f5 && f5 == f6 && f6 == "O") {
            return "O";
        } else if (f7 == f8 && f8 == f9 && f9 == "O") {
            return "O";
        } else if (f1 == f4 && f4 == f7 && f7 == "O") {
            return "O";
        } else if (f2 == f5 && f5 == f8 && f8 == "O") {
            return "O";
        } else if (f3 == f6 && f6 == f9 && f9 == "O") {
            return "O";
        } else if (f1 == f5 && f5 == f9 && f9 == "O") {
            return "O";
        } else if (f3 == f5 && f5 == f7 && f7 == "O") {
            return "O";
        } else if (f1 == f2 && f2 == f3 && f3 == "X") {
            return "X";
        } else if (f4 == f5 && f5 == f6 && f6 == "X") {
            return "X";
        } else if (f7 == f8 && f8 == f9 && f9 == "X") {
            return "X";
        } else if (f1 == f4 && f4 == f7 && f7 == "X") {
            return "X";
        } else if (f2 == f5 && f5 == f8 && f8 == "X") {
            return "X";
        } else if (f3 == f6 && f6 == f9 && f9 == "X") {
            return "X";
        } else if (f1 == f5 && f5 == f9 && f9 == "X") {
            return "X";
        } else if (f3 == f5 && f5 == f7 && f7 == "X") {
            return "X";
        } else {
            return "NONE";
        }
    }
}

There are so many problems with this...

By umnikos, 2017-12-12 17:38:50
public boolean logout(String token)
{
    LogedUser user = logedUsers.remove(token);
    return (user != null) ? true : false;
}
By Slacki, 2015-11-17 17:58:53
        var validAccountData = account.email != nil
        validAccountData = account.firstName != nil
        validAccountData = account.lastName != nil
        
        if validAccountData {
            return account
        }
        
        return nil

Proper validation

By Anonymous, 2017-12-12 15:17:35
#274 PHP +52
foreach ($k as $kk) {
    foreach ($kk as $kkk) {
    }
}
By Anonymous, 2018-04-05 14:50:22
<?php
$now = time();

while ($now + 10 > time()) {
    
    // Just chill...smoke a blunt
}

echo "Done.\n";
By Sobak, 2015-07-21 12:30:55
const errorHandler = () => {
  throw new Error();
};
By Anonymous, 2018-10-08 19:35:38
private boolean check_if_valid_login(Login login) {
    boolean validLogin = false;
    if (login.isValid(login)) {
        validLogin = true;
    }
    
    if (!(login.isValid(login) == true)) {
        validLogin = false;
    }
    
    return validLogin ? true : false;
}
By Anonymous, 2021-07-06 20:22:47
Double value = item.getPrice() * loyaltyPointMultiplier;
String[] s = String.split(value.toString(), "\\.");
points = Integer.parseInt(s[0]);
if(Integer.parseInt(s[1]) > 0) {
    points++;
}
    
return points;

Want to round up? Math.ceil() uses too little memory! Use this instead!

By phytyca, 2017-12-12 05:02:48
@Override
public void afterTextChanged(Editable s) {
    switch (paymentType) {
        case 0:
            if (s.length() == 9) etPaymentAmount.requestFocus();
            break;
        case 1:
            if (s.length() == 9) etPaymentAmount.requestFocus();
            break;
    }
}
By Anonymous, 2017-12-22 12:41:02
        $gallery = \common\models\UtVideogallery::find()->select(['ut_videogallery.VideogalleryID',
                'ut_videogallery.Name_rus','ut_videogallery.TournamentID','ut_videogallery.MatchID', 'Slug',
                'ut_videogallery.Date','COUNT(ut_video_to_gallery.VideoToGalleryID) count','ut_matches_videos.Data',
                'm1.Data DataP'])
                ->leftJoin('ut_video_to_gallery','ut_video_to_gallery.VideogalleryID=ut_videogallery.VideogalleryID')
                ->leftJoin('ut_matches_videos','ut_matches_videos.VideoID=ut_video_to_gallery.VideoID')
                ->leftJoin('ut_matches_videos m1','m1.VideoID=ut_videogallery.PreviewID')
                ->where(['ut_videogallery.Active'=>1])
                //->andWhere(['TournamentID'=>$list['selected']])
                ->groupBy('ut_videogallery.VideogalleryID')
                ->orderBy('ut_videogallery.Date DESC')
                ->limit(self::$countPerPage)
                ->asArray()->all();
        foreach ($gallery as $key => $value) {
            if($value['count']==0) unset($gallery[$key]);
        }
        foreach($gallery as $k=>$v){
            if(isset($v['Data']))
                $v['Data'] = str_replace('http:','https:',$v['Data']);
            if(isset($v['DataP']))
                $v['DataP'] = str_replace('http:','https:',$v['DataP']);
            $gallery[$k]=$v;
        }
        $galleryCount = \common\models\UtVideogallery::find()->select(['ut_videogallery.VideogalleryID',
                'ut_videogallery.Name_rus','ut_videogallery.TournamentID','ut_videogallery.MatchID',
                'ut_videogallery.Date','COUNT(ut_video_to_gallery.VideoToGalleryID) count','ut_matches_videos.Data'])
                ->leftJoin('ut_video_to_gallery','ut_video_to_gallery.VideogalleryID=ut_videogallery.VideogalleryID')
                ->leftJoin('ut_matches_videos','ut_matches_videos.VideoID=ut_video_to_gallery.VideoID')
                ->leftJoin('ut_matches_videos m1','m1.VideoID=ut_videogallery.PreviewID')
                ->where(['ut_videogallery.Active'=>1])
                //->andWhere(['TournamentID'=>$list['selected']])
                ->groupBy('ut_videogallery.VideogalleryID')   
                ->orderBy('ut_videogallery.Date DESC')
                ->asArray()->all();
        foreach ($galleryCount as $key => $value) {
            if($value['count']==0) unset($galleryCount[$key]);
        }
        $pagination = new \yii\data\Pagination(
        [
            'totalCount' => count($galleryCount),
            'pageSize' => self::$countPerPage,

        ]);

Picasso of PHP

By chernomorets, 2017-03-03 11:26:18
try {
	$order->addItem($item);
} catch (Exception $ex) {
	throw $ex;
}
By baueri, 2019-04-10 16:49:46