I am trying to find all the classes defined inside a package. I have tried this code -  public static File[] getPackageContent(String packageName) throws IOException{     ArrayList&lt;File&gt; list = new ArrayList&lt;File&gt;();     Enumeration&lt;URL&gt; urls = Thread.currentThread().getContextClassLoader().getResources(packageName);     while (urls.hasMoreElements()) {         URL url = urls.nextElement();         File dir = new File(url.getFile());         for (File f : dir.listFiles()) {             list.add(f);         }     }     return list.toArray(new File[]{});   Now here is the thing - if the String packageName does not contain "." character, it returns me all the names of the classes which I want exactly. But suppose if the packageName contains "." character it does not return anything.  Why is that? If possible how can I find all the classes inside a package where the package name does have a "." character in it?
Is it possible to find all classes or interfaces in a given package? (Quickly looking at e.g. , it would seem like no.)
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Adaline is 100-something years old, and her daughter appears to be 90 years old. Well, Adaline gave birth to her in her mid 20's, and to be precise, she should be 80.   Anyways, Adaline's old lover's son (Ellis) is probably in his late 20's/early 30's. And Adaline has stopped aging at 29, which is pretty close to Ellis. Her old lover is said to be a few years younger than her and still, his son is so young. Also, Adaline could make him believe that she is the daughter of her own old self.   Then,      how can Adaline's real life daughter be so old?   I can't make sense out of this.  Why is it this way? The age pattern of the actors and actresses is inconsistent. It seems to me that the filmmakers have exaggerated some things. What is the net charge of the Earth? Nielsen & Chuang Exercise 2.2 - “Matrix representations: example” What is the difference between a field and a property? 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