Coding for Kids: 3-in-1 Masterclass for Beginners: Learn, Code, Play! Python, Games, and App Adventures in Under 3 Day

Programming for Kids

A Simple Step-by-Step Manual Teaching Beginners How to Code and Develop Programming Skills

Ryan Roffe

Introduction

Welcomeb Btob Btheb Bworldb Bofb Bcomputerb Bprogrammingb Bforb Bkids,B Borb Btheb Bactb Bofb Bwritingb Bab Bprogramb Btob Btellb Byourb Bcomputerb Bwhatb Btob Bdo.B Bprogramsb Bareb Bwrittenb Busingb Bab Bseriesb Bofb Binstructionsb Binb Bab Bparticularb Blanguage,B Bthreeb Bofb Bwhichb Bib Bwillb Bbeb Btalkingb Baboutb Bhereb B–B Bjava,B Bsql,B Bandb Bc++.

Computerb Bprogrammingb Bisb Bnotb Basb Bdifficultb Basb Bitb Bfirstb Blooks,B Bandb Bitb Bcanb Bbeb Bab Blotb Bofb Bfun,B Basb Blongb Basb Byoub Bdob Bitb Bproperly.B Bib Bhaveb Bpreparedb Bab Bbasicb BHello,B Bworld!B Btutorialb Bforb Beachb Bofb Btheb Bthreeb Blanguages,B Bjustb Btob Bgiveb Byoub Banb Bideab Bofb Bhowb Bitb Ballb Bworks.B Bapartb Bfromb Bthis,B Bib Bhaveb Balsob Benclosedb Bsomeb Busefulb Btipsb Bforb Bbeginnersb Bandb Btheb Bcommonb Bmistakesb Bthatb Bnewbiesb Btendb Btob Bmakeb Bwhileb Bprogramming.

Simply,B Bprogrammingb Benvironmentb Bisb Bab Bsoftwareb Bthatb Bwillb Ballowb Byoub Btob Bcreate,B Bcompile,B Bandb Bexecuteb Bcomputerb Bprogramsb Bonb Btheb Bsystem.B Bitb Bisb Banb Binterfaceb Bbetweenb Btheb Bprogrammerb Bandb Btheb Bcomputer,B Bwhichb Bwillb Bconvertb Btheb Bprogramsb Bthatb Byoub Bwillb Bwriteb Bintob Btheb Bcomputer’sb Blanguageb Bandb Baskb Bitb Btob Bexecuteb Btheb Bsameb Bforb Byou.B Btherefore,B Bbeforeb Byoub Bpickb Bupb Banyb Bprogrammingb Blanguage,B Bbeb Bsureb Btob Benquireb Baboutb Btheb Brequiredb Bprogrammingb Benvironmentb Bandb Bhowb Btheb Bsameb Bcanb Bbeb Bsetb Bupb Bonb Btheb Bcomputerb Bthatb Byoub Bintendb Btob Buseb Bforb Byourb Bprogrammingb Bcourse.

Diggingb Bdeeperb Bintob Btheb Bprogrammingb Benvironmentb Bandb Bitsb Bsetup,B Bitb Bisb Bmadeb Bupb Bofb Bthreeb Bbasicb Belements,B Bnamelyb Btextb Beditor,B Bcompiler,B Bandb Binterpreter.B Binb Ballb Bprobability,B Byoub Bwillb Bneedb Ballb Btheseb Bthreeb Bcomponentsb Bforb Byourb Bcourse.B Bso,B Bbeforeb Byoub Bgob Bsearchingb Bforb Bthem,B Bletb Busb Bhelpb Byoub Bunderstandb Bwhatb Btheyb Bexactlyb Bareb Bandb Bwhyb Byoub Bwillb Bneedb Bthem.

Textb Beditor

Ab Btextb Beditorb Bisb Bab Bsimpleb Btextb Bprogramb Bthatb Bwillb Ballowb Byoub Btob Bcreateb Btextb Bfilesb Binb Bwhichb Byoub Bwillb Bwriteb Byourb Bcode.B Bdependingb Bonb Btheb Bprogrammingb Blanguageb Byoub Bareb Bworkingb Bon,B Btheb Bextensionb Bofb Btheb Btextb Bfileb Bwillb Bchange,B Bforb Binstance,B Bifb Byou’reb Bprogrammingb Binb Bcb Blanguage,B Byourb Btextb Bfilesb Bwillb Bhaveb Btheb Bextensionb B.C.

Ifb Byoub Bareb Bworkingb Bonb Bab Bwindowsb Bmachine,B Byoub Bcanb Bsimplyb Bsearchb Bforb Bnotepadb Binb Btheb Bsearchb Bbarb Bandb Buseb Bitb Basb Bab Btextb Beditorb Bforb Byourb Bprograms.B Byou

Canb Balsob Bexploreb Bnotepad++B Bforb Bsomeb Badvancedb Boptions.B Bitb Bisb Bfreelyb Bavailableb Bandb Byoub Bwillb Bjustb Bneedb Btob Bdownloadb Bandb Binstallb Bitb Bonb Byourb Bmachine.B Bonb Btheb Botherb Bhand,B Bifb Byoub Bareb Bab Bmacb Buser,B Byoub Bcanb Bexploreb Btextb Beditorb Boptionsb Blikeb Bbbeditb Bandb Btextb Bedit.

Compiler

Nowb Bthatb Byoub Bhaveb Bwrittenb Btheb Bprogramb Bandb Byoub Bareb Ballb Breadyb Btob Btestb Bifb Byoub Bhaveb Bwrittenb Bitb Bcorrectlyb Borb Bnot,B Byoub Bhaveb Btob Bgiveb Bitb Btob Btheb Bcomputerb Bandb Bseeb Bifb Bitb Bunderstandsb Bwhatb Byoub Bareb Btryingb Btob Bcommunicate.B Bhowever,B Btheb Bcomputerb Bonlyb Bunderstandsb Bbinaryb Blanguage,B Bandb Bwhatb Byoub Bhaveb Bwrittenb Bisb Bfarb Bfromb Bwhatb Bitb Bcanb Bdirectlyb Bdigest.B Btherefore,B Bthisb Bfileb Bneedsb Btob Bbeb Bconvertedb Bintob Bab Bbinaryb Bformat.

Ifb Byoub Bhaveb Bmadeb Bsyntacticalb Berrorsb Bandb Bnotb Bfollowedb Btheb Brulesb Bofb Btheb Bprogrammingb Blanguage,B Btheb Bcompilerb Bwillb Bnotb Bbeb Bableb Btob Bmakeb Bthisb Bconversionb Bsmoothlyb Bandb Bwillb Braiseb Banb Berrorb Bmessageb Bforb Byou.B Btherefore,B Btheb Bcompilerb Bisb Bab Bprogramb Bthatb Bchecksb Bifb Byoub Bhaveb Bfollowedb Btheb Bsyntacticalb Brulesb Bofb Btheb Bchosenb Bprogrammingb Blanguageb Bandb Bconvertsb Btheb Btextb Bfileb Bintob Bitsb Bbinaryb Bform.B Bmoreover,B Bthisb Bprocessb Bofb Bconversionb Bisb Breferredb Btob Basb Bcompilation.

Mostb Bprogrammingb Blanguagesb Blikeb Bc,B Bjava,B Bc++,B Bandb Bpascal,B Bbesidesb Bmanyb Bothers,B Brequireb Bcompilation,B Bandb Byoub Bwillb Bneedb Btob Binstallb Btheirb Brespectiveb Bcompilersb Bbeforeb Byoub Bcanb Bexecuteb Banyb Bprogramsb Bwrittenb Busingb Bthem.

Interpreter

Unlikeb Btheb Bprogrammingb Blanguagesb Bmentionedb Babove,B Bthereb Bareb Bsomeb Botherb Bprogrammingb Blanguagesb Blikeb Bpythonb Bandb Bperlb Bthatb Bdob Bnotb Brequireb Bab Bcompiler.B Btherefore,B Binsteadb Bofb Bab Bcompiler,B Btheyb Bneedb Banb Binterpreter,B Bwhichb Bisb Balsob Bsoftware.B Btheb Binterpreterb Bsimplyb Breadsb Btheb Bprogramb Bfromb Btheb Btextb Bfileb Bandb Basb Bitb Bparsesb Btheb Bfile,B Bitb Bconvertsb Btheb Bcontentsb Bofb Btheb Bfileb Bandb Bexecutesb Bthem.B Bifb Byoub Bareb Bworkingb Bonb Banyb Bsuchb Bprogrammingb Blanguages,B Brememberb Btob Binstallb Btheb Bcorrespondingb Binterpreterb Bonb Byourb Bsystemb Bbeforeb Bstarting.

Ifb Byoub Bhaven’tb Bworkedb Bwithb Bab Bcomputerb Bbeforeb Borb Bhaveb Blittleb Btob Bnob Bexperienceb Binb Binstallingb Bsoftwareb Bonb Btheb Bcomputer,B Btechnicalb Badviceb Bfromb Banb Bexpertb Bisb Brecommended.B Bhowever,B Bbeb Bsureb Btob Bdob Btheb Binstallationb Byourself,B Basb Bitb Bwillb Bhelpb Byoub Bbuildb Banb Bacquaintanceb Bwithb Btheb Bdeviceb Bthatb Byoub Bwillb Bworkb Bwithb Binb Btheb Bnear

Future.

Besidesb Bthis,B Bifb Byourb Bcomputerb Bdoesb Bnotb Bsupportb Btheb Binstallationb Bofb Banyb Bofb Btheb Bprogrammingb Benvironmentb Belements,B Byoub Bcanb Balsob Bmakeb Buseb Bofb Btheb Bonlineb Bcompilersb Bandb Binterpretersb Bthatb Bareb Bavailableb Bforb Ballb Btheb Bdifferentb Bprogrammingb Blanguagesb Bnowadays.B Ballb Byoub Bneedb Bisb Bab Bgoodb Binternetb Bconnectionb Bandb Bab Bwebb Bbrowserb Btob Bopenb Btheseb Bonlineb Bfacilitiesb Bandb Bgetb Bstartedb Bwithb Byourb Bprogrammingb Blessonsb Bandb Bpracticeb Bsessionsb Brightb Baway.

Chapterb B1:B Bwhatb Bisb Bab Bprogrammingb Blanguageb Bandb Bpopularb Bprogrammingb Blanguages?

Thereb Bareb Bthreeb Bmainb Bcategoriesb Bofb Bcomputerb Bprogrammingb Blanguage:

Machineb Blanguage

Thisb Bisb Btheb Bdefaultb Bcomputerb Blanguageb Bthatb Bisb Bbuiltb Binb Bprimitiveb Binstructionsb Brepresentedb Btob Btheb Bcomputerb Binb Bbinaryb Bcode.B Bthus,B Bifb Byoub Bwantb Btob Binstructb Bab Bcomputer,B Byoub Bmustb Bwriteb Binb Bbinaryb Bcode.B Bhereb Bisb Banb Bexampleb Bofb B‘Hellob Bworld’b Binb Bbinary:

01001000b B01100101b B01101100b B01101100b B01101111b B00100000b B01110111

01101111b B01110010b B01101100b B01100100

Assemblyb Blanguage

Assemblyb Blanguagesb Bareb Balternativesb Btob Bmachineb Blanguages.B Btheyb Buseb Bmnemonicsb Btob Brepresentb Bmachineb Blanguageb Binstructions.B Bsinceb Bcomputersb Bcannotb Bunderstandb Bassemblyb Blanguage,B Bweb Buseb Bab Bprogramb Bcalledb Banb Bassemblerb Btob Bconvertb Bassemblyb Blanguageb Bcodeb Bintob Bmachineb Blanguageb Bcode.B Bcomparedb Btob Bmachineb Blanguages,B Bassemblyb Blanguagesb Bareb Brelativelyb Beasierb Btob Blearnb Bandb Buse,B Bbutb Btheyb Bareb Bstillb Btediousb Bbecauseb Btheyb Bareb Bcloserb Btob Bmachineb Blanguage.

High-Levelb Bprogrammingb Blanguages

Theb Blateb B1990sb Busheredb Binb Btheb Bdevelopmentb Bofb Bab Bnewb Bgenerationb Bofb Bcomputerb Bprogrammingb Blanguagesb Bcalledb Bhigh-Levelb Bprogrammingb Blanguages.

High-Levelb Bprogrammingb Blanguagesb Bareb Benglish-Likeb Bcomputerb Bprogrammingb Blanguagesb Bthatb Bareb Bplatform-Independent,B Bwhichb Bmeansb Bcodeb Bwrittenb Binb Bhigh-B Blevelb Bprogrammingb Blanguageb Bcanb Brunb Bonb Banyb Bmachineb Borb Bcomputer.

Almostb Beveryb Bprogrammingb Blanguageb Binb Buseb Binb Btheb Bmodernb Bprogrammingb Bworldb Bisb Bhigh-Level.B Btheseb Blanguagesb Buseb Bstatementsb Btob Binstructb Bab Bcomputerb Btob Bperformb Bsetsb Bofb Binstructions.B Bhereb Bisb Banb Bexampleb Bofb Bcalculatingb Btheb Bsumb Bofb Btwob Bnumbersb Busingb Bmodernb Bprogrammingb Blanguages:

Number1b B=B B10

Number2b B=B B100

Sumb B=B Bnumber1b B+B Bnumber2

Today,B Bweb Bhaveb Bmanyb Bhigh-Levelb Bprogrammingb Blanguages.B Btheb Blistb Bbelowb Bshowsb Btheb Bmostb Bpopularb Bprogrammingb Blanguages,B Btheb Bonesb Bcommonlyb Bapplicableb Binb Banyb Bfield.

Pythonb Bjavab Bc++

Javascriptb Bruby

Inb Bthisb Bguide,B Bweb Bshallb Bbeb Bdiscussingb Btheb Bessentialsb Byoub Bneedb Btob Bmasterb Btob Bstartb Bprogrammingb Borb Bwritingb Bcomputerb Bcodeb Binb Bthreeb Bprogrammingb Blanguages:B Bjava,B Bc++,B Bandb Bpythonb B(Versionb B3).

Theb Bnextb Bphaseb Bstartsb Btheb Bdiscussionb Bbyb Blookingb Batb Btheb Bbasicb Belements,B Bwhoseb Bunderstandingb Bofb Bwhichb Bwillb Ballowb Byoub Btob Bgetb Bstartedb Bonb Btheb Bpathb Btob Bbeingb Bab Bproficientb Bprogrammer.

Programmingb Bbasics

Likeb Bhumanb Blanguages,B Bhigh-Levelb Bprogrammingb Blanguagesb Bhaveb Bab Bsetb Bofb Bkeyb Belements.B Bmostb Bhigh-Levelb Bprogrammingb Blanguagesb Bhaveb Btheb Bfollowingb Bcoreb Belements:

Environmentsb Bkeywords

Datab Btypesb Bvariablesb Boperatorsb Bcontrolb Bflowb Bfunctionsb Barraysb Bstrings

Inputs/Outputs

Environmentb Bsetup

Sinceb Bcomputersb Blackb Btheb Babilityb Btob Bunderstandb Bhigh-Levelb Bprogrammingb Blanguagesb Bdirectly,B Bweb Buseb Btranslatorb Borb Bconvertorb Bwhereb Bweb Bwriteb Bourb Bcodeb Bandb Bthenb Btranslateb Bitb Btob Bmachineb Bcode.B Bweb Bcallb Bthisb Bab Bdevelopmentb Benvironment.

Althoughb Bitb Bisb Bnotb Bab Bprogrammingb Belementb Bbyb Bitself,B Bsettingb Bupb Byourb Bdevelopmentb Benvironmentb Bisb Busuallyb Btheb Bveryb Bfirstb Bstepb Btob Bworkingb Bwithb Beveryb Bprogrammingb Blanguage.B Bitb Bmainlyb Bcomprisesb Bofb Binstallingb Bab Bcertainb Btypeb Bofb Bsoftwareb Bonb Byourb Bcomputerb Bsob Bthatb Byoub Bcanb Bcreateb Bcomputerb Bcodeb Bandb Btranslateb Bthisb Bcodeb Bintob Btheb Blanguageb Byourb Bcomputerb Bcanb Bunderstand.

Withb Bmostb Bhigh-Levelb Bprogrammingb Blanguages,B Btheb Bmostb Bnotableb Btoolsb Bnecessaryb Btob Bcreateb Bab Bconventionalb Bprogrammingb Benvironmentb Bare:

Textb Beditor

Ab Btextb Beditorb Bisb Bab Bpieceb Bofb Bsoftwareb Bweb Buseb Btob Bwriteb Bcomputerb Bcodeb Binb Bplainb Btextb Bwithoutb Bformatting.B Bmicrosoftb Bwindowsb Bhasb Bnotepadb Basb Bitsb Bdefaultb Btextb Beditor.B Bsourceb Bcodeb Bisb Btheb Bnameb Bweb Buseb Btob Breferb Btob Btheb Bcodeb Bwrittenb Bandb Bsavedb Bbyb Btextb Beditor.

Translators

Web Buseb Btranslatorsb Btob Bconvertb Bsourceb Bcodeb Bintob Bbinaryb Blanguage.B Btheb Bbinaryb Bcodeb Btranslatedb Bthenb Bbecomesb Bwhatb Bprogrammersb Breferb Btob Basb B‘Objectb Bcode.’B Btranslatorsb Bcanb Bbe:

Assemblers:B Bweb Buseb Btheseb Btob Bconvertb Blow-Levelb Blanguagesb Bintob Bmachineb Bcode.

Compilers:B Bcompilersb Bconvertb Bsourceb Bcodeb Btob Bbinaryb Bcodeb Bandb Bthenb Bexecuteb Btheb Bbinary.B Bifb Btheb Bprogramb Brunsb Bintob Banb Berrorb Bduringb Btheb Bexecutionb Bprocess,B Btheb Bcompilationb Bstopsb Bwithoutb Bcreatingb Bab Bbinary.B Btheb Bmostb Bpopularb Bcompiledb Blanguagesb Bareb Bc,B Bc++,B Bobjective-C,B Bswift,B Bandb Bpascal.

Interpreters:B Binterpretersb Bareb Bsimilarb Btob Bcompilersb Bbutb Binsteadb Bofb Brunningb Btheb Bentireb Bprogram,B Btheyb Bconvertb Btheb Bcodeb Blineb Bbyb Bline.B Bthisb Bmeansb Bthatb Beveryb Blineb Bofb Bcodeb Brunsb Buntilb Banb Berrorb Boccurs.B Bonceb Btheb Bprogramb Breturnsb Banb Berror,B Btheb Binterpreterb Bautomaticallyb Bstopsb Bandb Breportsb Btheb Berror.B Btheb Bmostb Bpopularb Binterpretedb Blanguagesb Bareb Bpython,B Bruby,B Bjavascript,B Bandb Bperl.

Hybridb Btranslators:B Bhybridb Btranslatorsb Bareb Bab Bcombinationb Bofb Bcompilersb Bandb Binterpreters.B Btheyb Bconvertb Btheb Bsourceb Bcodeb Bintob Bbytecode.B Bruntimeb Benginesb Bthenb Btranslateb Bandb Bexecuteb Btheb Bbytecode.B Btheb Bmainb Bexampleb Bhereb Bisb Bjavab Bthatb Busesb Btheb Bjavab Bvirtualb Bmachineb B(Jvm).

Note:B Bsetb Bupb Byourb Bprogrammingb Benvironmentb Bdependingb Bonb Btheb Bvariousb Binstructionsb Bgivenb Bbyb Beachb Bofb Btheb Bthreeb Bprogrammingb Blanguagesb Bweb Bshallb Bbeb Bworkingb Bwith—Andb Beachb Blanguageb Bhasb Bdifferentb Benvironmentb Bsetupb Binstructions.

Chapterb B2:B Bexecutionb Bandb Bstatementb Baboutb Bab Bprogram

Statement

Statements:B Bwhatb Bareb Bthey?

Beforeb Bib Bbeginb Bexplainingb Bwhatb Bab Bstatementb Bis,B Bletb Bmeb Bposeb Byoub Bab Bsimpleb Bquestion.B Bwhenb Bwasb Btheb Blastb Btimeb Byoub Bhadb Btob Bchooseb Bbetweenb Btwob Bthings,B Bdependingb Bonb Btheb Belementsb Blikeb Bwhatb Byoub Bprefer,B Bwhatb Byoub Bcanb Bafford,B Bwhatb Bisb Bnear,B Bandb Bwhatb Bisn’t?B Bwheneverb Bweb Bmakeb Bdecisions,B Bweb Btakeb Bintob Baccount      Quite      A      Few      Components      And      Elements      Which      Will      Eventuallyb Binfluenceb Bourb Bdecisionb Baccordingly.B Bsimilarly,B Btob Bhelpb Busb Bwithb Bsuchb Bissues,B Bweb Buseb Bstatements,B Bandb Bthatb Bisb Bexactlyb Bwhatb Bweb Bwillb Bbeb Blookingb Binto.

Inb Btheb Bsimplestb Bdefinition,B Bstatementsb Bareb Bnothingb Bmoreb Bthanb Binstructionsb Bthatb Bprogramb Binterpreterb Bunderstandsb Bandb Bexecutes,B Bweb Bhaveb Bbeenb Bwritingb Bsomeb Bourselvesb Bwhenb Bweb Bsetb Bvaluesb Btob Bvariables.

Statements,B Bwhereb Bweb Bassignb Bvaluesb Btob Bvariables,B Bareb Bcalledb Bassignmentb Bstatements.B Bhowever,B Basb Blongb Basb Bprogramb Bisb Bbeingb Bdiscussed,B Bgenerally,B Bstatementsb Breferb Btob B‘If’b Bstatements.

Theb B‘If’b Bstatementb Bisb Bwhatb Bprovidesb Bprogramsb Bwithb Bab Bsituationb Bandb Ballowsb Bprogramb Btob Btakeb Bappropriateb Bactionb B‘If’b Bab Bgivenb Bsituationb Bisb Btrue,B Botherwise,B Bitb Btakesb Banotherb Broute.B Bsoundsb Beasyb Bandb Bitb Bisb Bactuallyb Binterestingb Btoo.B Bletb Busb Bseeb Bhowb Bweb Bcanb Bcreateb Bourb Bveryb Bfirstb B‘If’b Bstatement.

Here’sb Btheb Bsituation.B Bab Buserb Bwishesb Btob Bsignb Binb Busingb Btheirb Baccount.B Btheb Bpromptb Basksb Bforb Btheb Bpasscodeb Bonly.B Bifb Btheb Buserb Binputsb Btheb Bright,B Bcase-Sensitive,B Bpasscode,B Bheb Bshouldb Bbeb Ballowedb Baccess.B Bifb Btheb Buserb Bentersb Btheb Bwrongb Bpassword,B Bitb Bshouldb Bnotb Bgob Bthroughb Bandb Binformb Btheb Buserb Bthatb Btheb Benteredb Bpasswordb Bwasb Bincorrect.

Tob Bdob Bthat,B Bweb Bfirstb Bneedb Btob Bestablishb Bab Bpassword.B Byoub Bcanb Beitherb Bcomeb Bupb Bwithb Byourb Bownb Bpre-Definedb Boneb Borb Baskb Btheb Buserb Btob Bcreateb Bab Bnewb Bpasscodeb Bandb Bthenb Bre-Enterb Bit.B Bib Bleaveb Btheb Bchoiceb Bupb Btob Byou.

Passwordb B=B Binput(Createb Bab Bpassword:B B)B Bprint(Welcomeb Btob Btheb Bportal)

Sob Bfar,B Bib Bhaveb Bonlyb Baskedb Btheb Buserb Btob Benterb Bab Bpasswordb Bofb Btheirb Bchoice.B Bifb Byou

Wish,B Byoub Bcanb Bsetb Banyb Bstringb Borb Bnumbersb Basb Bab Bpassword.B Bnext,B Bib Bcreatedb Bab Blittleb Bwelcomeb Bgreeting.B Bnow,B Bweb Bshallb Baskb Btheb Buserb Btob Benterb Btheirb Bpassword:

Password_Checkb B=B Binput(Pleaseb Benterb Byourb Bpassword:B B)

Theb Bonlyb Bthingb Bworthb Bnotingb Bhereb Bisb Bthatb Bib Bchangedb Btheb Bnameb Bofb Btheb Bvariable.B Bifb Byoub Bareb Bwonderingb Bwhy,B Bthatb Bisb Bbecauseb Bhadb Bib Busedb Btheb Bsameb Bvariableb Bname;B Bitb Bwouldb Bhaveb Bupdatedb Btheb Bpassword,B Binsteadb Bofb Bcomparingb Bit.B Bsinceb Bweb Bwishb Btob Bverifyb Btheb Bpassword,B Bweb Bwillb Bneedb Btob Buseb Bab Bdifferentb Bvariable.

Now,B Btheb Bcustomerb Bhasb Bgivenb Busb Btwob Bpiecesb Bofb Binformation.B Bhere,B Bweb Btellb Bprogrammingb Bwhatb Btob Bdob Bifb Btheb Bpasswordb Bmatches.

Ifb Bpassword_Checkb B==B Bpassword:

Print(Successful!B Bwelcomeb Bback!)

Thereb Bareb Btwob Bthingsb Btob Bnoticeb Bhere.B Bwheneverb Byoub Btypeb Binb B‘If’b Basb Byourb Bfirstb Bword,B Bpycharmb Bwillb Bdetectb Bthatb Byoub Bwishb Btob Bcreateb Banb B‘If’b Bstatement.B Btheb Bcolorb Bofb B‘If’b Bwillb Bchangeb Btob Bdenoteb Btheb Bsame.B Bafterb B‘If,’B Bweb Bneedb Btob Bdefineb Bourb Bcondition.B Btob Bdob Bthat,B Byoub Bmayb Bhaveb Bobservedb Bthatb Bib Busedb B==B Binsteadb Bofb Bab Bsingleb Bequalsb Bsign.B Btheseb Bsignsb Bareb Bcalledb Boperators,B Bwhichb Bweb Bwillb Bdiscussb Blater.B Ballb Byoub Bneedb Btob Bknowb Bhereb Bisb Bthis:

‘=‘B Bisb Busedb Btob Bassignb Bab Bvalue

‘==‘B Bisb Busedb Btob Beitherb Bequateb Btwob Bvariablesb Borb Bcompareb Btob Bseeb Bifb Btheb Btwob Bareb Bexactlyb Btheb Bsame.

Inb Btheb Baboveb Binstance,B Bweb Bwillb Buseb Bthisb Bcomparisonb Boperator.B Bhereb Bisb Btheb Bmostb Binterestingb Bbit;B Bunlikeb Ballb Btheb Bcodesb Bweb Bwroteb Bsob Bfar,B Bthisb Blineb Bendsb Bwithb Bab Bcolonb B‘:’.

Everyb Bconditionalb Bstatement,B Bsuchb Basb Btheb B‘If’b Bstatement,B Bendsb Bwithb Bab Bcolonb Binb Bprogramb Btob Bcreateb Bab Bblockb Bofb Bcodeb Bthatb Bwillb Bexecuteb Bunderb Bthatb Bcolon.B Btheb Bnextb Blineb Bwillb Bbeginb Bwithb Banb Bindentation.B Bdob Bnotb Bremoveb Bthatb Bindentb Basb Bthatb Bwouldb Bcauseb Bconfusionb Bsinceb Bib Bhadb Balreadyb Bsetb Btheb Bcondition,B Bwhichb Bquiteb Bliterallyb Breadsb Basb BIfb Bpassword_Checkb Bisb Bexactlyb Btheb Bsameb Basb BpasswordB Bandb Bnowb Bib Baddedb Btheb Bcommandb Bthatb Bitb Bneedsb Btob Bcarryb Boutb Bifb Btheb Bconditionb Bisb Bmet.B Bwhenb Byoub Bexecuteb Bthisb Bprogram,B Byoub Bwillb Bbeginb Bwithb Btheb Bpromptb Baskingb Byoub Btob Bchooseb Bab Bpassword.B Bthatb Bwouldb Bbeb Bstoredb Basb Bab Bvariableb Bnamedb Bpassword.B Bnext,B Btheb Bpromptb Bwillb Baskb Busb Btob Btypeb Binb Btheb Bpasswordb Bonceb Bagainb Bforb Bverificationb Borb Bforb Bloginb Bpurposes.B Bwhateverb Bweb Btypeb Bhereb Bwillb Bbeb Bstoredb Binb Bab Bvariableb Bcalledb Bpassword_Check.B Bnow,B Bprogramsb Bwillb Bcompareb Btheb Btwob Bvaluesb Bandb Bseeb Bifb Btheb Btwob Bareb Bexactlyb Balike.B Bifb Bso,B Bitb Bwillb Bprintb Boutb Bab Bsuccessb Bmessage.

Ib Bamb Bquiteb Bsureb Bthatb Byoub Bhaveb Bjustb Btriedb Btob Benterb Btheb Bwrongb Bpasswordb Bdeliberately.B Bitb Bendedb Btheb Bprogramb Baltogetherb Bwithoutb Banyb Bwarning,B Bright?B Bthereb Bisb Bab Breasonb Bforb Bthat.B Bweb Bhaveb Bonlyb Bdefinedb Btheb B‘If’b Bcondition.B Bweb Bneverb Bgotb Btob Btheb Bpartb Btob Bdefineb Btheb B‘Else’b Bcondition.

Theb B‘Else’b Bconditionb Bisb Btheb Bfinalb Bcondition,B Bandb Bitb Busuallyb Bcomesb Bintob Bplayb Bwhenb Btheb B‘If’b Bconditionb Borb Bothersb Bareb Bnotb Btrueb Bandb Bareb Bnotb Bfulfilled.B Btob Bdob Bthat,B Bweb Bwillb Baddb Btwob Blinesb Bofb Bcodeb Bbeneathb Btheb Bfirstb Bone.B Bnow,B Btheb Bentireb Bprogramb Bshouldb Blookb Blikeb Bthis:

Passwordb B=B Binput(Createb Bab Bpassword:B B)B Bprint(Welcomeb Btob Btheb Bportal)

Password_Checkb B=B Binput(Pleaseb Benterb Byourb Bpassword:B B)B Bifb Bpassword_Checkb B==B Bpassword:

Print(Successful!B Bwelcomeb Bback!)B Belse:

Print(Sorryb Bbuddy!B Bthat’sb Bab Bnay!)

Noticeb Bhowb B‘Else’b Bstatementb Bneedsb Bnob Bindentationb Bhere,B Bandb Bitb Bdoesb Bnotb Brequireb Byoub Btob Bprovideb Badditionalb Bconditionsb Beither.

Now,B Bib Bwillb Brunb Btheb Bcodeb Btwice.B Bonceb Bcorrectb Bandb Btheb Botherb Bincorrect,B Bletb Bus

Seeb Bhowb Bitb Bworks:

Correctb Bpasswordb Bcreateb Bab Bpassword:B B123b Bwelcomeb Btob Btheb Bportal

Pleaseb Benterb Byourb Bpassword:B B123b Bsuccessful!B Bwelcomeb Bback!

Incorrectb Bpassword

Createb Bab Bpassword:B B123b Bwelcomeb Btob Btheb Bportal

Pleaseb Benterb Byourb Bpassword:B B122

Sorryb Bbuddy!B Bthat’sb Bab Bnay!

Here’sb Bab Bquestion,B Bwhatb Bifb Bthereb Bisb Bmoreb Bthanb Boneb Bconditionb Btob Bab Bstatement?B Bsupposeb Byoub Bareb Btob Bchooseb Bab Bnumberb Bbetweenb Boneb Btob Bthreeb Bandb Bthenb Bgiveb Banb Bappropriateb Bmessage,B Bdependingb Bonb Btheb Bnumberb Btheb Buserb Bchooses,B Bhowb Bwouldb Bweb Bdob Bthat?

Print(Welcomeb Btob Bmyb Blittleb Bgame)

Numberb B=B Bint(Input(Chooseb Bab Bnumberb Bbetweenb B1-3:B B))B Bifb Bnumberb B==B B1:

Print(Youb Bloveb Btob Bconsiderb Byourselfb Bab Bleader,B Bdon’tb Byou?)

Elifb Bnumberb B==B B2:

Print(Youb Bhateb Bbeingb Balone,B Bright?)B Belifb Bnumberb B==B B3:

Print(Theb Bmore,B Btheb Bmerrier,B Bisb Bit?)B Belse:

Print(Really?B Byoub Bcan’tb Bfollowb Bsimpleb Binstructions,B Bcanb Byou?)

Quiteb Bab Bfamiliarb Bwayb Btob Bputb Bthings,B Bbutb Btheb Bonlyb Bthingb Btob Bnoteb Bhereb Bisb Btheb B‘Elif’b Bstatement.B Btheb B‘Elif’b Bsitsb Brightb Bbetweenb B‘If’b Bandb B‘Else’b Bwhereb B‘If’b Bisb Btheb Bfirstb Bcondition,B Bandb B‘Else’b Bisb Bwhenb Bnob Bconditionsb Bareb Bmet.

Yes,B Bib Bknow!B Bitb Bshould’veb Bbeenb Bnamedb Basb B‘Ifel,’B Bbutb Bthenb Bagain,B Bitb Bisb Bwhatb Bitb Bis!

Tryb Bitb Boutb Byourself,B Bcheckb Beachb Bofb Btheseb Bwithb Bvariousb Bnumbersb Basb Byourb Bpicks.B Bforb Bab Blittleb Bfun,B Buseb Banyb Bnumberb Bgreaterb Bthanb Bthreeb Bandb Bseeb Bwhatb Bhappens.

Thisb Bisb Bhowb Bprogramsb Bhandlesb Bconditionalb Bstatements.B Bifb Byoub Bareb Bab Bbitb Bofb Bab Bgamer,B Byoub Bmayb Bhaveb Bseenb Bvariousb Bgamesb Bwhereb Bdecisionsb Bcanb Binfluenceb Btheb Boutcomeb Bofb Btheb Bgameb Bitself.B Bnowb Byoub Bknowb Btheb Bculprit!

Thereb Bisb Bnob Blimitb Btob Btheb Bnumberb Bofb B‘Elif’b Bstatements.B Byoub Bcanb Bcreateb Basb Bmanyb Basb Byoub Blike.B Bwithb Bthatb Bsaid,B Blet’sb Bmakeb Bthisb Bab Blittleb Bmoreb Binteresting.

Nestedb Bconditionalb B(‘If’)B Bstatements

Letb Busb Bassumeb Bthatb Bweb Buseb Btheb Bsameb Bnumbersb Basb Babove,B Bbutb Bthisb Btime,B Bweb Bwishb Btob Baddb Banb B‘If’b Bstatementb Bwithinb Banb B‘If’b Bstatement.B Blet’sb Bimagineb Bthatb Bweb Bwantb Boutb Buserb Btob Bselectb Banotherb Bnumericb Bvalue,B Bthisb Btimeb Binb Bdecimalb Bnumbers,B Bonlyb Bifb Btheb Buserb Bdecidesb Btob Bchooseb Btheb Bfirstb Bvalueb Basb Btheb Bnumber.

Haveb Bab Blookb Batb Btheb Bcodeb Bbelowb Bandb Btryb Btob Bfindb Boutb Bhowb Btheb Bcodeb Bwillb Bbeb Bexecuted.

Print(Welcomeb Btob Bmyb Blittleb Bgame)

Numberb B=B Bint(Input(Chooseb Bab Bnumberb Bbetweenb B1-3:B B))B Bifb Bnumberb B==B B1:

Print(Youb Bloveb Btob Bconsiderb Byourselfb Bab Bleader,B Bdon’tb Byou?)

Number2b B=B Bfloat(Input(Enterb Bab Bnumberb Bwithb Bab Bdecimalb Bfigureb Bbetweenb B1b Bandb B2:B BB B))

Ifb Bnumber2b B==B B2.00:

Print(Okay!B Bib Bmeantb Bab Blittleb Blesserb Bthanb Bthat!)

Elifb Bnumberb B

Print(Oh,B Bcomeb Bon!B Byoub Bcanb Bgob Bhigher!)B Belse:

Print(Youb Bknowb Bwhat,B Bforgetb Bit!)

Elifb Bnumberb B==B B2:

Print(Youb Bhateb Bbeingb Balone,B Bright?)B Belifb Bnumberb B==B B3:

Print(Theb Bmore,B Btheb Bmerrier,B Bisb Bit?)B Belse:

Print(Really?B Byoub Bcan’tb Bfollowb Bsimpleb Binstructions,B Bcanb Byou?)

Web Bcreatedb Banotherb Bvariableb Bwithinb Btheb Bfirstb Bcondition.B Bifb Btheb Buserb Bdecidesb Btob Bsettleb Bforb Bone,B Btheb Bpromptb Bwillb Baskb Btheb Buserb Btob Benterb Banotherb Bnumber.B Bweb Busedb Btheb Bconversionb Bhereb Btob Bconvertb Btheb Bincomingb Bnumberb Btob Bafloat,B Basb Bitb Bwillb Bhaveb Bab Bdecimalb Bfigure.

Web Bthenb Bcreatedb Banotherb Bconditionb Bwhichb Bdefinesb Btheb Bupperb Blimitb Bandb Btheb Blowerb Blimit.B Btob Baddb Bab Blittleb Bfunb Btob Bit,B Bthereb Bisb Bnob Bcorrectb Bnumberb Btob Bchooseb Bfromb Bhere.B Bregardlessb Bofb Bwhatb Btheb Buserb Bmayb Bchoose,B Btheyb Bwillb Beitherb Breceiveb Bab Bmessageb Btob Bstateb Bthatb Btheyb Bwentb Bab Blittleb Btoob Bhigh,B