New to Java

[vijayraj34]

hi,
am new to java, i wrote a simple hello world program in eclipse.
-----------------------------------------------------
lachu.java
-----------------------------------------------------

Code:

public class lachu {
    public static void main(String[] args){
    System.output.println("This program displays the name lachu ;-)");    
    }
    
}

-----------------------------------------------------
but after running its shows an error

"Error: Could not find or load main class lachu"
please any 1 tell me what should i do.

[brandonio21]

Hello Vijayraj34!

First of all, welcome to the forums! A little tip for you: whenever putting code into a forum post, please enclose it with the code tags "

Code:

" and "

" - I have already edited your post to be as such.

I have never encountered this problem while using eclipse. The only suggestion that I have is that you right click on the project and "Run As>Java Application", as such:



I suggest that you read this article to get familiarized with the basics of Eclipse: <!-- m --><a class="postlink" href="http://www.vogella.com/articles/Eclipse/article.html">http://www.vogella.com/articles/Eclipse/article.html</a><!-- m -->

Also, in the code you submitted, System.output.println should be changed to System.out.println

[Vinwarez]

Just a little tip:
If you write Java in Eclipse, it would be easier if you change the settings to Java projects. Here is how to do that: Window > Open Perspective > Java.

[vijayraj34]

this is my error, the same code if i run in net beans works perfectly, why?

[brandonio21]

Wow, that is really weird! Do you have the latest version of Eclipse and Java installed?

If reinstalling does not fix the problem, I have uploaded a .zip file that can be accessed at this link: https://dl.dropbox.com/u/398377/Java.zip. Simply extract it and run Eclipse (Java>Eclipse>EclipsePortable.exe). If it runs properly, then it was a problem with either your Eclipse or Java installation.

[vijayraj34]

yup the new portable eclipse is running perfectly.
thank you for that.
and i have latest java also.
but actually in my old eclipse android developing tool was there, because of that the problem was coming or something else? pls explain me <!-- s:-) --><img src="{SMILIES_PATH}/icon_e_smile.gif" alt=":-)" title="Smile" /><!-- s:-) -->

[brandonio21]

Hm, well it could have been a number of things. The android development kit may have messed something up, Java may have simply been misconfigured on your Eclipse. Like I said before, I have never encountered that error so I have no clue...

[vijayraj34]

Can any 1 tell me how to connect a database to java program and i also want to access(R/W) database with a java program. Just give me very simple sample program.

db:MS Excel or MS Sql 2008

[brandonio21]

I have no clue how to do this, sorry about that. However, if someone else on the forum knows, hopefully they'll chime in!