Hello World!!

-

Hello World


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


 If all goes well, you should see the following output:

Hello, World!

Explaination:
  • All code is contained within a class, in this case HelloWorld.
  • The file name must match the class name and have a .java extension, for example: HelloWorld.java.
  • All executable statements are contained within a method, in this case named main().
  • Use System.out.println() to print text to the terminal.
Note:
  • Classes and methods (including other flow-control structures) are always defined in blocks of code enclosed by curly braces { }.
  • All other statements are terminated with a semi-colon (;).
  • Java language is case-sensitive! This means that HelloWorld is not the same as helloworld, nor is String the same as string.




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