Re: eMac

From:

Lew <lew@nowhere.com>

Newsgroups:

comp.lang.java.help

Date:

Sat, 09 Dec 2006 13:29:55 -0500

Message-ID:

<qf6dna9Mw8Y5nebYnZ2dnUVZ_vGinZ2d@comcast.com>

Jean Pierre Daviau wrote:

Hi everyone,

Beside using java webstart, how do you start a simple 'Hello World'
application on a e Mac.

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

First suggestion:

Write code that you can compile with the 'javac' command (or from within your
IDE). The code you presented will not compile.

Then:

Let us suppose you name your class 'HelloWorld' and that you place the source
code in subdirectory 'example' of your project source directory:

~/learning/src/ $ mkdir example
~/learning/src/ $ emacs example/HelloWorld.java
....
~/learning/src/ $ javac example/HelloWorld.java

Assuming you got no errors from the compilation, you can now run the resulting
program:

~/learning/src/ $ java -cp . example.HelloWorld

Naturally, your source must declare the correct package and name the class, as
well as making it public:

/* HelloWorld.java
*/
package example;
public class HelloWorld
{
...
}

Take a gander at Bruce Eckel's book _Thinking in Java_, available in free
online versions, and the abundant tutorials on the Sun Java sites.

- Lew