Passing variables and methods between two class files

Question

I created two simple programs to see what I can learn about how separate class files work together.
There are two files, Alpha.java and Beta.java. Both are located in the same folder.
Here�s Alpha.java:
********* Alpha.java *********
public class Alpha {
public int alphaInt;
public void alphaMethod() {
System.out.println("This is Alpha's alphaMethod.");
******** End Alpha **********
Here�s Beta.java
******** Beta.java ***********
public class Beta {
public static void main() {
Alpha a = new Alpha();
a.alphaInt = 10;
System.out.println(The value of alphaInt is " + a.alphaInt);
a.alphaMethod();
******** End Beta ***********
Alpha compiles fine. Beta does not compile and I get this error:
�Exception in thread �main� java.lang.NoSuchMethodError: main�
My first problem to solve is to get Beta to compile. After that I should be able to run it from the command line and get something like this as output:
�The value of alphaInt is 10�
�This is Alpha�s alphaMethod.�
Would some kind people please help me with this?
TIA,
Logan

Answer 1

That was easy, and it confirms what I thought should happen. Now for the real question:
Alpha and Beta are servlets in a package called abClasses. Alpha starts out like this:
package abClasses;
import javax.servlet.*;
import javax.servlet.jsp.*;
import java.util.*;
import javax.servlet.http.*;
import java.sql.*;
public class Alpha extends HttpServlet {
Beta is the same, except for the name of course.
Alpha creates a Connection variable, and Beta is going to use it. But when I try to compile Alpha I get an error that says this:
cannot resolve symbol
symbol: class Alpha
location: abClasses.Beta
Alpha a = new Alpha();
Any suggestions on why what we did in the simple Alpha and Beta programs won't work in the Alpha and Beta servlets?
You are appreciated,
Logan