Hello World!

[Pragma]

Here is a simple script that when run displays "Hello World!" into the commands prompt. More will be explained about it after.

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

"public static Hello" is defining the class to be:
public (Can be accessed by other classes)
static (can be access inside this file)
and to be named "Hello" (NOTE!: your file must be named the same as the class that contains the main method header, which in this case would be the Hello class)

"public static void main(String[] args)" is the main method header, any file that will be ran will need this method.
public (can be accessed by other classes or methods)
static (can be accessed by the rest of this class or other methods in this class)
void (the method's return type)


I must go for now but soon I will post a guide on compiling and running a java class file in a windows OS. :wave:

[Lahtaaja]

This is legend
The first thing I learned about programming [if not counting endless hours sitting front of WC3 WE].
+Rep for you xD

[cubed]

Here is a simple script that when run displays "Hello World!" into the commands prompt. More will be explained about it after.

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

"public static Hello" is defining the class to be:
public (Can be accessed by other classes)
static (can be access inside this file)
and to be named "Hello" (NOTE!: your file must be named the same as the class that contains the main method header, which in this case would be the Hello class)

"public static void main(String[] args)" is the main method header, any file that will be ran will need this method.
public (can be accessed by other classes or methods)
static (can be accessed by the rest of this class or other methods in this class)
void (the method's return type)


I must go for now but soon I will post a guide on compiling and running a java class file in a windows OS. :wave:

Actually, you're wrong about half of the stuff in this post.

First off, "public static Hello" will not compile. You can't have a static modifier on a class, only public, abstract, and final.

Secondly, you said "static (can be accessed by the rest of this class or other methods in this class)" which is entirely wrong. The static modifier on a method in a class means that it can be accessed by anything, take for instance the Integer.parseInt(int x) method, which is static.

Anyway, you definitely don't deserve rep for this.

[Pragma]

I meant to put public class Hello but everything else I said was correct soo would you kindly F*** off. =)

You don't even know what your talking about 'public' is what makes it accessible by everything.

[Apoc]

Public simply makes the class accessible to the current assembly. "Accessible by everything" is a bad way of saying it.

""public static void main(String[] args)" is the main method header, any file that will be ran will need this method." While somewhat correct, again, bad wording. The "main" function is the entry point for the program. Anything you want to be run on startup, should be added here. (Usually this turns into a call to another method, which handles most of the startup tasks as the main method is usually hidden where it can't easily be tinkered with.) The compiler implicitly looks for the first occurrence of the "main" method to begin the application. (Keep in mind, you cannot have 2 of the same method names. Or member names for that matter.)

One more thing to keep in mind, "main" is not the same as "Main".

"Void" is not a return type per-se. Void is declaring that this method has NO return type. And should be executed without expecting anything in return.

[jdismeuc]

Or you could use html... lol

[Pragma]

Or you could use html... lol

what that doesnt even make sense, you have to clue what were doing.

[jdismeuc]

Oh wow, sorry. I did not realize that this was all in Command Prompt. Maybe I should try reading? hmmm....

[Pragma]

no its cool, didnt mean to get mad like that XD