Re: Yet another OO question...

From:

Lew <lew@nospam.lewscanon.com>

Newsgroups:

comp.lang.java.programmer

Date:

Wed, 28 Mar 2007 18:56:59 -0400

Message-ID:

<6Pidnd6J3rAhb5fbnZ2dnUVZ_qninZ2d@comcast.com>

"ChrisW" <c.c.wood@gmail.com> wrote ...

import java.io.*;
import java.util.Date;
import jxl.*;
import java.util.Calendar;

class MyProgMethods throws IOException, jxl.read.biff.BiffException {

/*Everything that I had in my static main void class
previously*/

}

public class MyProg {

public static void main(String args[]) {

MyProgMethods myProgMethods = new MyProgMethods();

}
}

This gives 10 errors Compile-Time errors (mostly illegal start of type
errors) - Is there something quite fundamental I don't understand?

Oliver Wong wrote:

"main" is not a class, but a method. Statements can appear directly
within in methods, but they cannot appear directly within a class. A class
can contain methods, and these methods can contain statements.

To add to Oliver's fine advice, classes do not throw exceptions, only methods
do. This is similar to his point that statements go not within classes
directly, but within methods.

    So this code is illegal:

public class MyClass throws IOException {
  System.out.println("Hello world!");
}

but this code is legal:

public class MyClass {
  public void myMethod() throws IOException {
    System.out.println("Hello world!");
  }
}

-- Lew