Trying to create my own package

Question

So basically, I am trying to create my own package in WIndows.
I have created the directory:
C:\javaclasses\defnull\array
and in that directory all I have is:
intcheck.class
All the class does is check how large an integer array is. Here is the uncompiled code:
package defnull.array;
public class intcheck {
     public static int inarray(int[] numbers){
          int i = 0;
          try {
               for (i = 0; true; i++)
                    numbers[i] = numbers;
          catch (ArrayIndexOutOfBoundsException e){
               return i;
I opened up the cpanel, went to system, Advanced, Environment Variables, and added:
;C:\javaclasses
onto the end of the classpath variable.
Now, here is where I run into issues:
Problem a:
If I import the just the intcheck class, the program works fine:
import defnull.array.intcheck; //  IMPORTING ONLY THE INTCHECK CLASS.
public class tester {
     public static void main(String[] args){
int[] hai = new int[18];
int x = intcheck.inarray(hai);
System.out.println(x);
}and the output is "18".
But if I try to import the entire folder "array" of classes, like this:
import defnull.array.*; // IMPORTING ENTIRE FOLDER OF CLASSES
public class tester {
     public static void main(String[] args){
int[] hai = new int[18];
int x = intcheck.inarray(hai);
System.out.println(x);
}I get these errors
.\intcheck.java:3: class tester is public, should be declared in a file named tester.java
public class tester {
       ^
tester.java:9: cannot access intcheck
bad class file: .\intcheck.java
file does not contain class intcheck
Please remove or make sure it appears in the correct subdirectory of the classpath.
int x = intcheck.inarray(hai);
        ^
2 errorsIt should just be importing the whole folder of classes, correct?
I have even tried to create a new object for it:
intcheck check = new intcheck();It just gives similar errors

Answer 1

I dont understand why:
import defnull.array.intcheck;
would work but not:
import defnull.array.*;
It seems to be that specific class that is not working. i made another simple one to print out a string, which allowed me to use the wildcard.
what is wrong with that class?