Install JDK Part 3 :---

 To check your Java programs is running too or not type this program :- 

class test

{

public static void main(String args[])

{

System.out.println(" Welcome to DK Blog.");

}

}

Copy this program and save this as test.java

and open cmd exactly where your file is saved...

For example my file is saved in desktop , so I have to open CMD in desktop location

Now to run java program type:-

javac filename.java

For example:- My file here is test.java 

So I will write in cmd.... javac test.java

 Press enter and you'll see a class file will be created name test.class as you can see here in the picture....

As you can see my program is successfully compiled , that's why now test.class is created ..

Now all I need is to type java classname to execute this program in cmd...

For example , in the below picture ...

As you can see it shows the code execution part , now you can run Java programs in Windows easily.... 

Ohhh I forgot 1 thing to tell you all, if this Java path doesn't seems to be appeared like this in your cmd:-

Then goto right click on This PC or My computer , and select properties and select Advance System settings and select Environment Variable As shown in the pictures below....

Set your environment variable following this:-

Click on path variable and click edit....

Click on New and Add exact path and save it and press OK.... 

Now this'll work on cmd follow Step 6 again....

But I'll recommend you to follow my way , you'll never get issue regarding this PATH variable error....  

Enjoyy have a great day....