Buckys C++ Programming Tutorials - 26 - Logical Operators

[@garlicyum9147]

Best series on programming tutorials I've ever seen. Perfect humor to information ratio

[@garlicyum9147]

Also I love that you spell every single word wrong lmao

[@the_infinity_snake]

To give you guys a bonus, you can have both && and || as many as you want in the round brackets. And NOTICE, the || is the "border" of the tests. The || separates the tests. The compiler is gonna go through each test, one by one to check them. One by one.

[@Honorenji]

I just love that you have a bit of humour in your videos :) Your videos really help. Already had a lot of knowledge from c# but the syntax is a bit different, so it's not hard to keep up luckily.

[@edgykid4226]

Same but with java.

[@ktm6060MC]

Edgy Kid #42 Same here, learning Java and C++, neat seeing some things from Java, makes it nice that the commands are simular

[@swapnilagnihotri2235]

@@edgykid4226 same

[@DavidNortonDRN1029]

My C++ instructor is garbage and has horrible examples. In less than 10 minutes, I understood this more than ever by simply watching this.

[@zuesr3277]

Yeah his examples are engaging

[@RoxusRemo]

6 year old with 4 dollars trying to get into a night club.

[@lastofthestars6481]

MATT DOBING HAHAHAH

[@ferus5583]

Matt Dobing xD

[@soumithpotturi2090]

Make sure you write you with a 9 and in as ion or the program wont work. XD

[@hwudiwkbwhsysiwkmwbsoslkwaauyy]

Welcome to our night club, yo9ua re allowed ion.

[@PS2Damon]

SpongyBacon thnak yo9ua

[@SKreapergaming]

+SpongyBacon 5-star

[@phonekhantpaing8908]

I swear he's just getting funnier and funnier in every tutorial

[@NorthboundFox]

Bucky, you forgot to explain that Logical Operators follow order of operation, too. You can do If( (age>21 && money>500) || money > 500){ //code } This will only allow people if A) They are BOTH 21 and have $500 B) They just have $500 but aren't old enough. Knowing this is very important as it shortens LO statements in the same way that LO statements shorten nested if() statements. It's a code compacter for a code compacter :D

[@amulbham6928]

gottta say, your little bit of humor combined with your casual delivery are hilarious and help get me through .

[@AlbanianGamer313]

The program is called Watermellon :D at 3:24

[@RufusShinraPower]

Thank you. I'm glad it was something short and not complicated.

[@itishree4855]

Becky is the coolest c++ tutor on youtube for sure.

[@decimalpoint1117]

This guy is a natural. Forget the rules; don't impress; just express! That's how Bucky does it. Woooaaahhh!

[@abdinasirahmed7150]

can't stop watching your tutorials!

[@garretmkiii]

Bucky is an inspiration; he proves you can have but 10 thumbs still write code. Thanks for the tutorials, brother. "||" is a union; maybe "|" is a uniunion...

[@2007excalibur2007]

1:19 god fucking damnit lmao

[@Braleven]

I always laugh when he points that shit out.

[@SilverMiraii]

You can also use parenthesis just like when you do math. For example: if(age > 21 || (money > 800 && age>15 )) so now we're gonna allow people over 21, or people over 15 with at least 800 dolla bills

[@jacobfields3645]

Thank yo9ua!! I was coming here to ask this, now I guess i dont have to

[@ScareTheater2]

If you just write "and" instead of "&&" it would still work the same, and if you wrote "or" instead of "||" it would still work the same. So what's the point of writing && instead of and? Does it make a difference?

[@hwudiwkbwhsysiwkmwbsoslkwaauyy]

Looks more complex, but provides no obvious benefits or downsides.

[@mishoaleksidze7820]

I'd better to use 'and' and 'or'. Why does anyone want to use these marks, when there's an existing of words?

[@hwudiwkbwhsysiwkmwbsoslkwaauyy]

Some One In C++, and and or work, however in some other coding languages (I think php and java don't use and/or), so for people like me who have always used || &&, it keeps code consistent and avoids confusion :P

[@mishoaleksidze7820]

'And', 'Or' perfactly work in Python

[@hwudiwkbwhsysiwkmwbsoslkwaauyy]

That's nice, use whatever you want.

[@0tiii]

i'm now at the point where it became a game of "pls dont correct that spelling mistake i love it"

[@sergyu123456]

The misspelling thing was so funny. I tell my classmates that too when they ask me if the program works if they change what's in quotes.

[@3dUber]

thank you soo much i've been looking for this for ever. I use to use visual basic. So i was looking up a "and statment"

[@magnolia1112]

Such an awesome explanation. Thank you.

[@MrSaemichlaus]

For the OR confusion: "||" is used for condition testing, like "if (1==1 || 2==3)" returns "true". "|" is used for comparing numbers on the binary level by their bits, like "2 | 4" returns "6" because 0010 | 0100 -> 0110.

[@MrSaemichlaus]

This is a while back, I think what I wanted to say is that you can "combine" bits with OR and use that to check for any set bits. Knew it, misexpressed it ...

[@TusharSharmatushar13992]

this man is just awesome, too hysterical to be a computer programmer :P

[@CheeseOfMasters]

this guy's giving me a lot of ideas for my future nightclub...

[@psymaster330]

so glad i found these vids, now hopefully i can learn it fluently by the time i get to highschool! XD

[@theseangle]

7 years passed by now... How are your coding skills?

[@dark-_-001-kys]

how is it going brother did you become programmer ????

[@dark-_-001-kys]

@@theseangle what about you 1 year passed how much you progressed

[@theseangle]

@@dark-_-001-kys not much xD, coding was not required to much in this year

[@psymaster330]

@@dark-_-001-kys Yes actually!!! I graduated with a bachelors in computer science last year, and am currently writing this while waiting to join a meeting with the rest of my team. Thanks for the nostalgia flashback!

[@Qazqi]

You can. They are alternative tokens. There's also bitor, xor, compl, bitand, and_eq, or_eq, xor_eq, not, and not_eq. Because of older keyboards and C, there's also digraphs (look them up if you want to see them).

[@sportshala1553]

gajab h matlab maza aa gaya...tussi grate ho bhai.......robart bucky

[@DowntownSusana]

Great explanation, thank you!

[@abhistorm]

The point of this video is to let people know about "Logical operators" and hence the title.Too much knowledge is never too bad

[@Luvu5evr]

With &&, if the first condition evaluates to false, no other statements are evaluated because the overall result will still be false. It only takes one condition being false to make the entire outcome false. With ||, if the first condition evaluates to true, no other statements are evaluated because the overall result will still be true. It only takes one condition being true to make the entire outcome true. With & and |, all conditions are evaluated, regardless of their result.

[@sidforreal]

thank u very much...ur each nd every video helping a lot..

[@exia78]

keep em coming bucky Thanks`

[@sleepsleeper4466]

*2 People wanted to make Minecraft clones then found out how hard it was to make text show up and table flipped*

[@sleepsleeper4466]

;_;

[@sleepsleeper4466]

***** The 2 people that disliked the video the- Yah... just uh... nvm... don't hurt yourself

[@danielschieren2793]

David James ^This i1.kym-cdn.com/photos/images/original/000/131/351/eb6.jpg

[@sleepsleeper4466]

;--;

[@sleepsleeper4466]

***** with any language, for you to make a viable procedural infinite voxel terrain with a biome system and tempature intergration indeed does take "much code" i supposs the term "much" would vary depending on how much the average person codes.. still, for a noobie especially in c++, it is somewhat of a hassle to do

[@amulbham6928]

also itd be easier to fully grasp how the programs/syntax were used if you inputed the variables cin>>x; instead of just giving the variables values to begin with. So a person can understand how a loop or if else statement is activated based on the input value.

[@olivebates]

So around what episode are we gonna be getting to the fun part and making an actual graphical game (not to rush)?

[@Wingerlang]

Clever side-notes like: Put the most likely positive test-outcome first, since it's waste to run more tests than usually needed! Should be way more common in even beginner-tutorials like this.

[@rorygrice5758]

Are there operators for exclusive or (XOR), and how to parenthesis work with logical operators, If i have (something && something else) || (thing && other thing), would that work, or do i have to go into multiple lines of code when i want something that sophisticated?

[@vfxcrew1322]

hi one doubt logical operator is not working in while loop ,i use "or" condition but its not working

[@geoffxc3734]

"Say we're only 2 and we only have 4 dollars, probably from the tooth fairy. We're not going to be let into the club."

[@mynameisspam193]

is there a logical operator for if neither is true then the program can run? I only ask because even though I am new, I can see that it might be helpful to run code only if something is not occurring elsewhere in the code. Might be a stupid question, haven't thought it out thoroughly honestly, I just want to know.

[@KangarooLemonades]

Quick note, the logic behind it was: if((this and this) or (this and this) or (this and this))

[@clay5251343]

you sir have a new subscriber!!

[@gyratingseacow595]

Is there a video that explains how to use operator % I know there is supposed to be a question mark at the end there but I didn't want to confuse anyone. I have an assignment on this and cannot understand how to use this correctly. any advice or links to websites would be greatly appreciated!

[@awesome24712]

What if I wanted to use && and || in the same statement? What would be their order of execution?

[@bestraub98]

I think its usually from left to right (don't quote me on this), but I would just use braces

[@prinzecesartonares9332]

just a quick question, can return -1 be used in if-else statement ? if so how ? I have tried to do this but it will skip the nxt statement. Heres my code #include using namespace std; class example { public: string x= "this variable came from example"; double y; }; int main (){ example W; cout W.y; if(W.y>2){cout

[@RespectFalseIcons]

is it ok to but the OR and the AND operator in the same IF statement?

[@RufusShinraPower]

I probably should have phrased that better. What I meant was what if say you had 3 variables. what would you type if any 2 variables had to be true, but any 1 could be false.

[@MarijnKonings]

Becouse the functionality came originaly from AND and OR logic gates, wich are the base building blocks for alot of things including processors. Look it up on wikipedia if you're interested in it :P.

[@olivebates]

@olivebates Whoops, was a little to fast there ^^;

[@makennedy524]

I learned to use "and" and "or" instead of those symbols, they are interchangable right? Is there a reason to use those over the text, it just seems like extra stuff you'd have to memorize.

[@LoganMeyers03]

If you look above your enter key and see... (Me with one of those keyboards where the enter key is upright): ...Backspace?

[@DJLad16]

You can also use the actual word "or" instead of ||

[@Possen93]

the simple & compares the numbers (only integers and characters if im not mistaken) in a bitwise level. meaning that it compares every single one of their bits and then produces a result that ia not a boolean type and in many cases it isn't even 0 or 1. I think that is the difference :/

[@cwelsh2010]

Really helpful thank you!

[@crisag.2698]

I am using Eclipse. I was wondering if anyone knows how I can get my programs to run in that black window that I *think* is called a shell? Mine at the moment are only running in the console in Eclipse itself.

[@akshaybirajdar2882]

In windows , consol is in Black color, while eclipse use its own consol.

[@crisag.2698]

Akshay Birajdar So there is no way to have the consol pop out in its own separate window?

[@departmentofeducation7212]

If you want it to run the program in the BASH of your windows computer then you could find a way to use the gcc compiler from the console (which can be accessed through typing cmd in the home search menu) or just using a program that runs it from the bash directly like code::blocks. However, it really doesn't matter whether you're running it from either the bash or a program's own console as long as you have the environment setup on your computer and not on someplace like an online IDE.

[@akkiheat]

Crisa Gazzola : Actually you can use Qt Creator , its much better than eclipse and (by choosing console application) you can get your program to run in black window ;)

[@RufusShinraPower]

in the part about the "or" operator, what would you type if any two variables could be true?

[@Qazqi]

Bitwise XOR is ^, logical XOR is != (yes, it happens to be the exact same semantics), which also means XNOR is ==, and there's really no point to providing the others when we have !

[@hellonicolerlearns8724]

"But what if you say this... I'm not the most professional nightclub owner." 😂😂

[@stanleyliew1450]

how to do this buckey? Write a program that asks a user to enter his/her marks. If the marks entered is >= 50 and

[@coconutko6266]

this is easy ...do you still need help ?

[@wheresecretslie]

#include using namespace std; int main(){ int mark; cout > mark; if (mark >=50 && mark

[@KingKilleer96]

in c++ u can use "and" insted of && and "or" insted of || :)

[@AdamHBr]

Yeah I was wondering about this seeing as how that's how it is in the majority of other languages.

[@VintageLJ]

I find using the && || versions improves readability of code.

[@ZShadow4899]

Before I learned this I was just using whatever knowledge I had of it and figuring the other things out... and I noticed two things I was doing differently. First, I was using the & sign instead of && when running tests, like if(n!=0 & f!=0 & f!=5) and it worked fine... what is the difference between & and &&? Second, I found that , seemed to do exactly what || does... could someone explain the difference?

[@bryanswaggbeast8194]

are they called straight slash? because they are next to the back slash i think.

[@bryanswaggbeast8194]

+Bryan SWAGGBEAST maybe var seperator? or cbar hahahahhaha not really

[@RoxusRemo]

+Bryan SWAGGBEAST They are called pipe usually.

[@minhkhoitran4167]

love your work

[@MrEpicSpace]

You can also use the word "and" instead of the weird && also you can use "or"

[@ozaybakrhan6833]

no you cannot in c++.

[@MrEpicSpace]

really? because it works for me.

[@ozaybakrhan6833]

***** hım.maybe because i use microsoft Visual c++.

[@YaboiKin]

***** I tried it as well in VS 2013 and it didn't work. Strange that it works for you as you'd think it would fail on everybody's. You sure your code is not just failing to compile and so displaying previous code?

[@cucxtract]

***** and, or works fine for me.. using code::blocks 13.12

[@dhruvkhetrapal4279]

Can we mix and and or both the operators in a single if statement.?

[@yoferenuntar6481]

dhruv khetrapal of course the "and" operator will be executed first

[@dhruvkhetrapal4279]

Thanks :)

[@olithepolo]

sorry but what did you write for gender ? (im french so sorry for my bad english) did you write like "string gender = female;" or "int gender == female" or something like that ?

[@mrkingofgameplays]

Just one thing, you can just use and as &&, i once tried it and it worked so i guess it should work to use just type like if(age>21 and money>500){code}

[@sanderclemetsen2112]

does 'if(age>=21 && money > 500 || money = 1000)' work?

[@caspeRedits]

did you enter "yo9ua re allowed ion"? Because you must enter "yo9ua re allowed ion".

[@istvanherpai3803]

What if I want the program to run this code when only one of the conditions is true and the other one has to be false? (Both of them can neither be true or false at the same time.)

[@coconutko6266]

use or

[@meikonishi]

+István Herpai if ( ! ( (a && b) || (!a && !b) ) )

[@meikonishi]

+István Herpai or, if ( (a && !b) || (!a && b) )

[@MarijnKonings]

For longer decimal numbers you use double instead of float, but for higher numbers then unsigned int's? I have no idea... Unsigned intergers go from 0 to 4294967295

[@RagePeanut]

I was wondering how to do the XOR operator (exclusive OR, which means if only one of them is true) and I found out it is != if anyone is interested in knowing that ! ;)

[@richterp.mayandoc2669]

can you explain why didn't you used return 0; ?

[@ItsZ-0001]

Hey Bucky ! Please make a series of tutorial about Visual basic C++ windows form !

[@doCtOrHx]

so this is where the smart kids spend their time.

[@masalahberat]

i spelled it you. and my program crashed. :(

[@lastofthestars6481]

hey what are you doing now days, how much far you are in your programing journey :))

[@priyanksisodia]

@@lastofthestars6481 +1

[@evanmastermind]

| = vertical bar in ASCII encoding.

[@easygaming7934]

Hi +thenewboston, im wondering why wouldn't you just use a , instead of &&??

[@easygaming7934]

+Peterolen Ah ok, thanks for the answer mate :)

[@SergeantBalthazar]

What's funny is that | is actually called a pipe.

[@ciyvi9]

how to do when you compare 3 things and you want to be at least 2 true???

[@dibbiepk]

I dont think this ones related to the video, but the operator for "And" is "||" So in an if statement: int age = 10; if (age == 10 || age < 25){ cout

[@dibbiepk]

Dibbie Knight Opps, sorry: "And" is "&&" and "Or" is "||", Im use to coding in Java, and || also means And... Though my test worked for both being true with || so I guess it could be used either way.

[@RedCrusaderGames]

Dibbie Knight in Java || does not mean "And"! I've programmed in Java for quite a while now and it means "Or" and && is "And"

[@abubakirabdulkadir7340]

essentail to every student

[@dibbiepk]

Completely out of context of this video, so if theres any advanced coders (tho I assume its simple), int/float/etc only go up to 10 digits, before u get a error, how would u extend that to lets say 100 digits? Like if you have a money system in ur game that goes up to like trillions, thats 12 0's, so the user would never be able to make that if ur moneys managed with a default 10-digit limit int, right?

[@ivandrofly]

The insert key make the arrow going down

[@farazhusain925]

can we use && and || in combination...

[@MrDragonshear]

If I use && and || will it open a black hole to another dimension?

[@TensinghJoshua]

This compares integers. But how do we compare words? Like, balloon || doll ? I tried it with string but I couldn't get it.

[@wheresecretslie]

#include using namespace std; int main(){ string word; cout > word; if (word == "balloon" || word == "doll"){ cout

[@Telseilong]

there called the pipe symbol, knowing is half the battle.

[@phonekhantpaing8908]

How many values can be used in an equation at one time?

[@southparkclips221]

Hello, I think you forgot the third logical operator which is the "not" or "!" Symbol

[@ankitpaul9446]

Why we just can't use & instead of && as the former one works fine here???

[@jintarokensei3308]

+Ankit Paul Logicals deal with statements. Bitwise deals with data. Bitwise can work for statements, logical can't really work for data.

[@HrCobra9]

Can you use "or" instead of || and an "and" instead of && works fine for me

[@Masot111]

I was making my code and i had a problem with the logical operators. i had this: int x; if (x=="yes") ... and it worked. But when i tried adding more options I think it was doing things in an order i didn't wanted. And the result wan't succesfull. if (x=="yes" || "Yes" || "YES") ... I tried using brackets to change the order, but an error went out. if (x==("yes" || "Yes" || "YES")) ... Can anyone help me solve my problem please.

[@13Shafiq666]

+Masot111 you need to set variable x with a string not an interger. simply by put in the header #include and string x;

[@lifetycoon101]

it works with correct spellings also! why does bucky say otherwise??

[@TheDarksiderrr]

5:15 made my day ;D

[@Jack-4242]

you should do >=21 because people that are 21 are adults so they are allowed to go in with your script you have to be at least 22 years old

[@fullthrottle254]

can you have for ( test || test || test && test) ?

[@thavrisco1632]

Try it

[@m14k15ts29]

The or logical operator can be found over the tab button on the left of your keyboard if you're using a European keyboard.

[@transformersloverjon]

At first I actually thought we needed to spell it ion

[@raheel1680]

i want a code in c++ which can give serial number of ram and hard disk in windows os.. can any one help me in this regard?