Java waa mid ka mid ah luuqadaha inta badan la isticmaalo, loogana raadsado barnaamijyada barnaamijyada adduunka hadda. Waxaa loo adeegsadaa qaybo kala duwan sida injineernimada software, sayniska xogta, iwm. Si la mid ah luqadaha kale, koodka luqaddan waxaa lagu qoray IDE ( Integrated Development Environment ). Isticmaalayaasha qaar ayaa laga yaabaa, si kastaba ha ahaatee, inay door bidaan soo dejinta software dhinac saddexaad ah si ay kood ugu qoraan oo ay markaa door bidaan tifaftirayaasha qoraalka ku dhex jira sida Microsoft Word ama Notepad . Iyadoo kuwan laga yaabo inay kuu oggolaadaan inaad qorto koodka, kuma caawin karaan inaad socodsiiso. Halkani waa halka uu Talisku^{(Command Prompt)} ku caawin karo. Maqaalkan, waxaan ku tusi doonaa sida aad u maamuli karto barnaamijka Java adigoo isticmaalayaDalab amar^{(Command Prompt)} .

In kasta oo aan si gaar ah uga hadli doono Command Prompt , shaqadani waxay u jirtaa dhiggeeda macOS, Terminal , sidoo kale. Habka waa isku mid u Mac sida ay tahay for Windows . Shuruud ahaan, waxaa lagaaga baahan yahay inaad ku soo dejiso kombuyuutarkaaga Java -ga u go'ay. ^(Java)Waxaad ka soo dejisan kartaa Qalabka Horumarinta Java^{(Java Development Kit)} ( JDK ), kaas oo ka socda dhammaan aaladaha sida agabka ugu muhiimsan ee lagu qoro koodka Java , laga bilaabo shabakadda ^(Java)Oracle . Waa in aad JDK soo dejiso oo lagu rakibaa kombayutarka ka hor inta aanad bilaabin hawsha.

Sida loo socodsiiyo barnaamijka Java iyadoo la isticmaalayo Command Prompt

Waxyaabaha ugu horreeya^(First) marka hore, waa inaad qortaa koodka aad rabto inaad ku shaqeyso oo aad kaydiso faylka Java la fulin karo. ^(Java)Ujeedadaas awgeed, waxaad isticmaali kartaa MS Word ama Notepad midkood . Tusaale ahaan, waxaanu qori doonaa kood fudud oo bixiya soo saarista "Hello World!". Tani waa sida uu kood u ekaan lahaa:

public class HelloWorld

{
    public static void main(String[] args)
    {
        System.out.println("Hello, World!");
    }
}

Isticmaalayaashu waa inay hubiyaan soo gelitaannada saxda ah mar haddii Notepad iyo ^(Notepad)Word midna aanu kaa caawinayn taas, iyo sidoo kale in faylka loo kaydiyay sidii faylka '.java' oo aan ahayn faylka '.txt'. Si taas loo sameeyo, u magacow faylkaaga 'Sample File .java' ( Waxaad magacaabi kartaa faylka wax kasta, ilaa inta faylka kordhintu uu yahay .java iyo nooca faylka^(File) , dooro 'All File s'. Faylkan waa inuu ahaado lagu kaydiyay gal gooni ah oo ku yaal meeshaad rabto.

Hadda, fur Command Prompt oo u wad sidii maamule. Waxaan isticmaali doonaa amarka 'cd' si aan u bedelno hagaha hawlgalka ee Command Prompt midka lagu kaydiyo barnaamijkaaga Java . Ku socodsii khadka amarka ee soo socda:

cd Folder-destination[Java-program-folder]

Waxaad hubin kartaa haddii faylkaaga barnaamijka Java uu ku jiro buug-tusahaan adigoo isticmaalaya amarka Dir sidoo kale. Hadda, raadi jidka JDK ee kombiyuutarkaaga, oo deji dariiqa JDK adoo isticmaalaya khadka soo socda. Tusaale ahaan, haddii aad ku shaqaynayso nooca Windows ee 64-bit ah (maadaama ay taasi inta badan tahay kiiska), oo aad go'aansato inaad ku rakibto faylka 64-bit ee JDK , meesha aad galeyso waxay noqon doontaa "C: Program ^(JDK)Files\Java ", ilaa adiga go'aanso inaad bedesho inta lagu jiro rakibidda.

set path=%path%;C:\Program Files\Javajdk

Marka xigta, isticmaal amarka javac ( Java compile) si aad u ururiso barnaamijkaaga.

javac SampleFile.Java

Waa inaad raacdaa erayga muhiimka ah ee Java ka dib magaca faylka ee aad u dooratay barnaamijkaaga. Weli ma arki doontid wax dhacaya, maadaama barnaamijka la sameeyay oo kaliya oo aan weli socon. Ugu dambeyntii, si aad u socodsiiso amarka, isticmaal amarka Java .

java SampleFile

Haddii aad ururinayso barnaamijyo fudud oo aad dhammaan ku hayso buug isku mid ah, uma baahnid inaad waddo joogto ah u dejiso faylalkaaga, laakiin haddii kiisku yahay mid kale, markaa waxaad ku fiicnaan doontaa inaad sidaas samayso. Dareenka Amarka^{(Command Prompt)} ayaa dejinaya doorsoomiyaha deegaanka ee fadhigaas, laakiin goobahaas waa la waayayaa marka aad xidhid Command Prompt^{(Command Prompt)} oo fadhigaagu wakhtigu kaa dhamaaday. Haddaba, haddii aad rabto inaad waddo joogto ah u dejiso dhammaan fadhiyadaada mustaqbalka, waxaad raaci kartaa tillaabooyinka hoose:

Fur Control Panel oo booqo nidaamka^(System) iyo ammaanka^(Security) goobaha. Waxaad ku heli kartaa iyaga adoo eegaya goobaha Control Panel sida ^{(Control Panel)}Qaybta^(Category) . Boggan waxa kale, oo kale, lagala xidhiidhi karaa goobaha Windows - ka sidoo kale. Dhinaca bidix ee shayga ikhtiyaariga ah, ka dooro Advanced System Settings oo^(System) guji badhanka Bey'ada Variables^{(Environment Variables)} ee xagga hoose ee sanduuqa Properties .

Hoosta Isbeddelka Nidaamka^{(System Variables)} , waxaad ka heli doontaa doorsoomiyaha Waddada . ^(Path)Dooro taas oo guji Edit , oo ku taal midigta hoose.

In the Edit Environment Variable sanduuqa, guji New , kaas oo kuu ogolaanaya inaad ku darto hage cusub jidkaaga.

Halkan, ku dheji dariiqa aad isticmaashay korka marka aad ururinayso Javascript oo badbaadi Settings adigoo gujinaya OK.

Kuwani waa tillaabooyinka aad u baahan tahay inaad raacdo si aad u ururiso una socodsiiso barnaamijka Java adigoo isticmaalaya Command Prompt . Sida qoraal ahaan, isticmaalayaashu waa inay maskaxda ku hayaan inay isticmaalaan Qalabka Horumarinta Java^{(Java Development Kit)} ee nidaamka oo aan ahayn Java Runtime Environment , taas oo ah wax laga yaabo in badan oo ka mid ah barnaamijyada Java , kuwaas oo akhrinaya maqaalkan, horeyba u rakibay oo ku shaqeeya kombuyuutarkooda.

Waxaad ka soo dejisan kartaa JDK Oracle.com . Waxaan rajeyneynaa in maqaalkani uu awooday inuu ku caawiyo.

How to run a Java program from the Command Prompt

Java is one of the most commonly used and sought-after programming languages in the world right now. It is used in varied fields such as software engineering, data science, etc. Much like any other language, code for this language is written in an IDE (Integrated Development Environment). Some users may not, however, prefer downloading a third-party software to write code on and thus prefer built-in text editors like Microsoft Word or Notepad. While these may allow you to write code, they can’t help you run it. This is where the Command Prompt may be of help to you. In this article, we will be demonstrating how you can run a Java program using Command Prompt.

While we will be talking exclusively about Command Prompt, this functionality exists for its macOS counterpart, Terminal, too. The process is the same for Mac as it is for Windows. As a prerequisite, you’re required to download a dedicated Java compiler on your computer. You can download the Java Development Kit (JDK), which runs across platforms as the most important toolkit to writing Java code, from the Oracle website. You’ll have to have the JDK downloaded and installed on your computer before you can begin the process.

How to run a Java program using Command Prompt

First things first, you will have to write the code that you want to run and save that as a Java executable file. For this purpose, you can use either MS Word or Notepad. For example, we’ll be writing a simple code that gives the output “Hello World!”. This is what the code would look like:

public class HelloWorld

{
    public static void main(String[] args)
    {
        System.out.println("Hello, World!");
    }
}

Users should make sure of proper indentations since neither Notepad nor Word would help you with that, and also that the file is saved as a ‘.java’ file and not as a ‘.txt’ file. In order to do so, name your file as ‘SampleFile.java’ (You can name the file anything, as long as the file extension is .java and from File type, select ‘All Files’. This file is to be saved in a separate folder in whichever destination you prefer.

Now, open the Command Prompt and run it as administrator. We will make use of the ‘cd’ command to change the operating directory on the Command Prompt to the one where your Java program is stored. Run the following command line:

cd Folder-destination[Java-program-folder]

You can check if your Java program file is present in this directory by using the Dir command too. Now, locate the path of the JDK on your computer, and set the path to the JDK via the following command line. For example, if you’re running the 64-bit Windows version (since that’s most commonly the case), and you decide to install the 64-bit JDK file, your folder destination will be “C:\Program Files\Java”, unless you decide to change it during installation.

set path=%path%;C:\Program Files\Javajdk

Next up, use the javac command (Java compile) to compile your program.

javac SampleFile.Java

You have to follow the javac keyword after the filename that you’ve chosen for your program. You won’t see anything happen just yet, since the program has only been compiled and not run yet. Finally, to run the command, use the Java command.

java SampleFile

If you’re compiling simple programs and housing them all in the same directory, you don’t have to set a permanent path for your files, but if the case is otherwise, then you will be better off doing so. The Command Prompt sets the environmental variable for that session, but those settings are forfeited once you close Command Prompt and your session is timed out. Thus, if you want to set a permanent path for all your future sessions, you can follow the steps below:

Open the Control Panel and visit the System and Security settings. You can locate them by viewing Control Panel settings as Category. This page can, alternatively, be approached via the Windows settings too. From the left-side options pane, select Advanced System Settings and click on the Environment Variables button on the bottom of the System Properties box.

Under the System Variables, you will find the Path variable. Select that and click on Edit, which is right below it.

In the Edit Environment Variable box, click on New, which will allow you to add a new directory to your path.

Here, paste the path that you’ve used above while compiling the Javascript and save the settings by clicking on Ok.

These are steps you have to follow in order to compile and run a Java program using the Command Prompt. As a side note, users should keep in mind to use the Java Development Kit for the procedure and not the Java Runtime Environment, which is something probably most Java programmers, who are reading this article, already have installed and running on their computers.

You can download the JDK from Oracle.com. We hope that this article was able to help you.

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