Friday, July 17, 2015

Getting started with Java - Installation and starting steps

Learn To Install Java Development Kit, setting environment variables and getting started



Requirements :

  • Download java development kit latest version

Steps :


Install jdk :
    • Double click on jdk installation kit -> below page open -> next
  • Select Development tools -> next

  • Select destination folder


  • Close



  • Then comes the most important part, that is setting up environment variables, in which most of the people face problems.



Setting up environment variables -

  • C drive -> Program files -> java -> jdk folder -> bin 




  • Find here -> javac file -> right click on it -> properties -> copy the path




  • my computers -> right click -> properties -> advance system settings -> advance -> environment variables




  • Click on path in system variables panel


  • Below frame will open up -> click in the variable value text field -> bring the cursor to the end of the text -> type a semicolon -> paste the copied path of javac file -> click okay in all frames   




  • Restart your computer.

To check java installed and working on your PC - 

  • Open command prompt -> type -> javac -> enter
  • If below output shown -> it means its working properly



  • Now you may start with writing java programs (through simple command prompt method).

Writing Java programs -

  • Write java code in a notepad file -> save with .java extension.
  • Open command prompt
  • change the directory to the path of the java file you created in notepad -> type -> cd <directory path>

  • You can see now, the directory is changed 
  • To compile program -> type in cmd now ->  javac <class name>
  • To run the program -> type -> java <file name>
  • You also use softwares like Ecllipse





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