QBasic Tutorial 12 - Simple Calculator With Input Validation - QB64

[@namantiwary7490]

please tell how to make it more advanced. i.e. adding fractional numbers,etc.

[@DakshBabbar]

Just do 7/8 +9/7

[@paramrajeshirke26]

hi there! UCASE$ makes my program go nuts, the program doesnot give the expected answer i am using QBasic45. (on my Macbook Pro 2015) is it a compatibility issue?

[@PrismAnimates]

no but use this code instead it works on every single one of OS: 'QBASIC calculator! Made by Prithak Adhikari DIM a AS INTEGER DIM b AS INTEGER top: CLS PRINT "Welcome to Prithak's Calculator" PRINT INPUT "Enter the first number"; a INPUT "Enter the Mathmatical Operator(+,-,*,/,^,MOD)"; oper$ SELECT CASE oper$ CASE "+" INPUT "Enter second number"; b sum = a + b PRINT "Result: "; sum INPUT "Would you like to do it again(y/n)"; ch$ IF ch$ = "y" THEN GOTO top IF ch$ = "n" THEN END CASE "-" INPUT "Enter second number"; b diff = a - b PRINT "Result: "; diff INPUT "Would you like to do this again(y/n)"; ch$ IF ch$ = "y" THEN GOTO top IF ch$ = "n" THEN END CASE "*" INPUT "Enter second number"; b mult = a * b PRINT "Result: "; mult INPUT "Would you like to d othis again(y/n)"; ch$ IF ch$ = "y" THEN GOTO top IF ch$ = "n" THEN END CASE "/" INPUT "Enter second number"; b div = a / b PRINT "Result: "; div INPUT "Would you like to d othis again(y/n)"; ch$ IF ch$ = "y" THEN GOTO top IF ch$ = "n" THEN END CASE "^" INPUT "Enter second number"; b expo = a ^ b PRINT "Result: "; expo INPUT "Would you like to d othis again(y/n)"; ch$ IF ch$ = "y" THEN GOTO top IF ch$ = "n" THEN END CASE "MOD" INPUT "Enter second number"; b modd = a MOD b PRINT "Result: "; modd INPUT "Would you like to d othis again(y/n)"; ch$ IF ch$ = "y" THEN GOTO top IF ch$ = "n" THEN END END SELECT

[@muhammadhaziq9556]

if we need to limit marks from 0 to 100 what loop do we use

[@igorguimaraesdecastro5855]

For loop

[@Shytzedaka]

Thanks a lot Bec of you i can enjoy makeing Programs" Also i Changed a bit and it worked I did A was P name was Plus and the Subtract was Less Then lol Thanks +Sub +liked

[@prithviprasai7151]

thanx for that awsome video bro................

[@ayushagarwal831]

what is UCASE$ for

[@SchoolFreeware]

Ayush Agarwal UCASE$ - Converting Letters To Upper Case

[@ronimandal7500]

SchoolFreeware

[@vrushantmukherjee6751]

SchoolFreeware

[@ayanjamil8270]

a humble thanks

[@uddhavaggarwal1087]

i tried but its not wrkng it just gives output as number 1 and no operation is happening i checked every thing is right but its not wrkng

[@bombi8709]

could you try copying and pasting your code here? or posting a hastebin link , I can help try and solve the issue for you if you still have this problem

[@Herbarius]

Nice for you to do these.. Kudos and thumbs up! But maybe you should switch over to FreeBasic? If not, would you be okay with others to adjust your tutorials for FreeBasic?

[@anirudhrs7656]

what does UNCASE$ mean?

[@PrismAnimates]

If you mean UCASE$ Then it converts the letters to upper case( for eg: w To W)

[@sulochanashaw6627]

Very useful but what is (UCASE)

[@emperoraltonia]

Converting letters into upper-case.

[@jitendraphysicspoint2159]

Plz me program Qbasic calculate energy levels research

[@nehanarula12]

what do u mean

[@srijanashrestha322]

Nice 😯😯😯😯

[@vargascarlitos]

my q64 no accept "UCASE$" and DIM commands ..

[@DakshBabbar]

Maybe a glitch. Try re-installing your qb 64

[@tushardesai150]

awesome :)

[@eli37co]

Need to check devision by zero

[@mahertaha9529]

goooooddd

[@spencerh8426]

Hey is this app safe?

[@austinfrancis4120]

i'm not even 18 and i am using it so tell me if its safe

[@paramrajeshirke26]

+AUSTIN FRANCIS lmao haha

[@somebody9033]

+AUSTIN FRANCIS YES IT IS. I AM ONLY 8 AND I USE IT

[@HAAAAAAAAHHHHHH]

@@somebody9033 now you're 13 😂