How to install java and run program on it

How to install and run program on java

 First you have to download java development kit I,e, jdk from http://www.oracle.com/technetwork/java/index.html  download java se (java standard edition).Then install it on ur system.Then you see there is a file name java on c:\programs files open it and u see there is two folder created name

jdk1.7.0_21

jre7(depend on ur java version)    

             Then open cmd and type

                                C:\>javac

If it gives error message then manually you have to create a path for java

After creating a path it shows like this

C:/>javac          

To create path just right click on my computer and click properties

You can see advanced system setting click on it and then click on environment variable

Then input variable name path and in place of variable value right location of bin file ie, goto c:/>program files/java/jdk/bin copy the addres it is something like C:\Program Files\Java\jdk1.7.0_21\bin

And then click on and its done. And now if you open cmd and type javac then it shows this screen.

And now its time to run a simple program in java language .

For this make a folder java or anything as per your choice in c drive ie,

 I make java folder in c drive .Then open notepad and type this program

And save as apple.java in java folder in c drive .

Now open cmd

And browse to java folder I,e,

C:/>cd java

C:/>java>

Then first compile ur program

C:/>java>javac apple.java

then it shows nothing if no error and if there is any error in code then it shows the error message after compilation type

c:/>java>java apple

then it print ur program result

I,e,

And now u have successfully installed and run program in java . If you have any doubt please leave a comment..

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