New to Java

This is an assignment for school. I'm in my second semester of object oriented programming. Here is the method causing the error when compiled in the test case:

    public void testRead()
    {
        Company aCompany = buildCompany();
        aCompany.writeToFile("CompanyDatabase.txt");
        Company bCompany = new BooksAndMore();
        bCompany = readFromFile("CompanyDatabase.txt");
        assertTrue(aCompany.equals(bCompany));
    }

Error thrown is "cannot find symbol - method readFromFile(java.lang.String). Here is the method being called:

{code} public static Company readFromFile(String fileName)
{
Company company = new BooksAndMore();

FileInputStream fis = null;
ObjectInputStream in = null;

try
{
fis = new FileInputStream(fileName);
in = new ObjectInputStream(fis);
company = (Company)in.readObject();
in.close();
}
catch (IOException ex)
{
ex.printStackTrace();
}
catch (ClassNotFoundException ex)
{
ex.printStackTrace();
}

return company;
}{code}

What am I doing wrong?