JetBrains IntelliJ IDEA Ultimate 2018.2.6
IntelliJIDEA是一種商業化銷售的Java集成開發環境（IntegratedDevelopmentEnvironment，IDE）工具軟件，由捷克軟件公司JetBrains在2001年1月時推出最初版。

IntelliJIDEA被認為是當前Java開發效率最快的IDE工具。它整合了開發過程中實用的眾多功能，幾乎可以不用鼠標可以方便的完成你要做的任何事情，最大程度的加快開發的速度。簡單而又功能強大。與其他的一些繁冗而複雜的IDE工具有鮮明的對比。

JetBrainsIntelliJIDEAUltimate2018.x 
Deepinsightintoyourcode.IntelliJIDEAanalyzesyourcode,lookingforconnectionsbetweensymbolsacrossallprojectfilesandlanguages.Usingthisinformationitprovidesindepthcodingassistance,quicknavigation,clevererroranalysis,and,ofcourse,refactorings.

Deepinsightintoyourcode.IntelliJIDEAanalyzesyourcode,lookingforconnectionsbetweensymbolsacrossallprojectfilesandlanguages.Usingthisinformationitprovidesindepthcodingassistance,quicknavigation,clevererroranalysis,and,ofcourse,refactorings.

Smartcompletion
Ctrl+Shift+Spacegivesyoualistofthemostrelevantsymbolsapplicableinthecurrentcontext.Thisandothercompletionsareconstantlylearningfromyou,movingthemembersofthemostfrequentlyusedclassesandpackagestothetopofthesuggestionslist,soyoucanselectthemfaster.

Chaincompletion
DigsataddeeperthanSmartCompletionandlistsapplicablesymbolsaccessibleviamethodsorgettersinthecurrentcontext.Sayyou'relookingforavalueofProjectandonlyhavetheModulemoduledeclaration.PressCtrl+Shift+Spacetwicetogetmodule.getProject()withoutanyadditionaleffort.

Staticmemberscompletion
Letsyoueasilyusestaticmethodsorconstants.Offersalistofsymbolsmatchingyourinputandautomaticallyaddsrequiredimportstatements.

Dataflowanalysis
Whenofferingcompletionvariants,IntelliJIDEAanalysesdataflowtoguessthepossibleruntimesymboltypeandrefineschoicesbasedonthatintel,automaticallyaddingclasscasts.

Languageinjection
Bringscodingassistanceforaselectedlanguagetoexpressionsandstringliteralsinanotherone,completewithalladvantagesyouwouldnormallyhave.Forexample,youcaninjectfragmentsofSQL,XPath,HTML,CSS,orJavaScriptcodeintoJavaStringliterals.

Cross-languagerefactorings
Knowingeverythingaboutusagesofasymbol,IntelliJIDEAoffersextremelyeffective,thoroughrefactorings.Forexample,whenyouRenameaclasswithinaJPAstatement,itwillupdateeverything,fromJPAentityclass,toeveryJPAexpressionwhereitisused.

Detectingduplicates
Findsduplicatecodefragmentsonthefly.Evenifyou'reonlyabouttoextractavariable,constant,oramethod,IntelliJIDEAwillletyouknowthatthereisasimilarcodefragmentthatcanbereplacedalongwiththeoneyou'rewokingon.

Inspectionsandquick-fixes
WheneverIntelliJIDEAdetectsthatyou'reabouttomakeamistake,alittlelightbulbpopsupintheeditor.ClickingitorpressingAlt+Enteropensalistofactionsyoucantaketomakethingsright.

Developerergonomics
EveryaspectofIntelliJIDEAisdesignedwithergonomicsinmind.IntelliJIDEAisbuiltonaprinciplethateveryminuteadeveloperspendsintheflowisagoodminute,andthingsthatbreakdevelopersoutofthatflowarebadandshouldbeavoided.

Built-indevelopertools
Tostreamlineyourworkflow,IntelliJIDEAoffersanunbeatabletoolsetrightfromthefirststart:decompiler,bytecodeviewer,FTPandmanymore.

Polyglotexperience
InadditiontoJava,IntelliJIDEAoffersfirst-classsupportfortopJVMandnon-JVMframeworksandlanguagesoutofthebox.

Systemrequirements
MicrosoftWindows10/8/7/Vista/2003/XP(incl.64-bit)
1GBRAMminimum,2GBRAMrecommended
300MBharddiskspace+atleast1GBforcaches
1024x768minimumscreenresolution

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