Thread: WHY THE CMD DOES NOT ABLE TO FIND "A" IN THIS SIMPLE PROGRM

Originally Posted by iCoder

The error is due to the ar it must be args. -As samfin said.
Correct it, ur code will be working even if its class a or class A or class whatever

This is absolutely not true. All of the following work fine:

class Main  {
    public static void main(String[] ar){
    	System.out.println("Works");
    }
}

class Main  {
    public static void main(String[] iLikeCats){
    	System.out.println("Works");
    }
}

class Main  {
    public static void main(String... a){
    	System.out.println("Works");
    }
}

Run them and see. Seriously, what's with posting help that is actually completely wrong?

Chances are, the OP was trying to compile a class with the wrong name- such as A.java instead of a.java, or vice versa.

lol @ iLikeCats

rahul dixit, please post the error you are getting or attach a screenshot.

Thanks

Originally Posted by iCoder

then y did his code didn't compile if it's correct ??

By the way thanks i dnt knw that we can give anything after String[].

His code didn't compile because, presumably, he was trying to compile a class that didn't exist.

Say his file was named a.java- Putting aside the fact that class names should start with a capital letter and be more meaningful than a single character.

He then tried to compile A.java. That's not the same as a.java. A != a. Just like he couldn't compile iReallyLikeCats.java, if his file was actually named iLoveCatsSoMuch.java.

Simple as that.

Originally Posted by iCoder

But he has stated that

I COMPILE THIS BY- javac a.java and run by- java a

He also typed the error message in all caps, eliminating any assurances that the error is talking about a.java and not A.java or A.JAVA or A.jAvA.

There is also the likelihood that he didn't copy and paste the error, or the file names, into the forum editor exactly. There is just too much uncertainty, which is why we're waiting on clarification from the OP. But until (if) that happens, I'd be willing to bet that he spelled the file name wrong, probably by using the wrong case.

Because the error he's talking about isn't a compiler error. It's an error saying that the specified file could not be found, let alone compiled. Even if the main(String [] args) error you guys erroneously came up with was real, the compiler didn't even get a chance to see that yet, since it has not been given a valid file name.

Originally Posted by iCoder

so probably it must work. rite ??

If it worked, why would he have posted in the first place?

Originally Posted by iCoder

so probably it must work. rite ??

What i meant is if he had ran the prg using the correct classname it would have worked.

Assumptions apart. Lets wait if he provides any OP. From that we can conclude what went wrong.

Ah. Assuming he has no other problems, then yeah, it should work as long as he compiles and runs the correct file.

I'd still be willing to bet that he was using the wrong file name. I wouldn't hold your breath on getting any more updates from the OP.

Originally Posted by samfin

It wasn't my intent to deliberately post something that was wrong. Admittedly I could have checked the fact before posting but in every code example I've ever seen it is put as public static void main(String args[]) and seeing it differently there seemed wrong and it never occured to me that it could be something else.
Anyway, I've learned something today which is why I joined this forum in the first place.

Well said

I think the thread creator should go through this.
How to ask question ?l

and i request admin to create a page for which question should be answer ?

Originally Posted by DanBrown

and i request admin to create a page for which question should be answer ?

What does that even mean?