How to understand and use `` , in JavaFX?

<fx:root> provides a solution to the issue of defining a reusable component with FXML. As an example, imagine you want to define a simple custom component consisting of a TextField and Button contained in an HBox. You need this to be represented by a subclass of Node, so you can write code like The issue is you need a Java class which … Read more

Is it valid to have a html form inside another html form?

A. It is not valid HTML nor XHTML In the official W3C XHTML specification, Section B. “Element Prohibitions”, states that: http://www.w3.org/TR/xhtml1/#prohibitions As for the older HTML 3.2 spec, the section on the FORMS element states that: “Every form must be enclosed within a FORM element. There can be several forms in a single document, but the FORM … Read more

How to draw lines in Java

A very simple example of a swing component to draw lines. It keeps internally a list with the lines that have been added with the method addLine. Each time a new line is added, repaint is invoked to inform the graphical subsytem that a new paint is required. The class also includes some example of … Read more

What’s the difference between SoftReference and WeakReference in Java?

From Understanding Weak References, by Ethan Nicholas: Weak references A weak reference, simply put, is a reference that isn’t strong enough to force an object to remain in memory. Weak references allow you to leverage the garbage collector’s ability to determine reachability for you, so you don’t have to do it yourself. You create a weak reference … Read more

How to sleep for five seconds in a batch file/cmd

One hack is to (mis)use the ping command: Explanation: ping is a system utility that sends ping requests. ping is available on all versions of Windows. 127.0.0.1 is the IP address of localhost. This IP address is guaranteed to always resolve, be reachable, and immediately respond to pings. -n 6 specifies that there are to be 6 pings. There is a … Read more

What is the difference between lemmatization vs stemming?

Short and dense: http://nlp.stanford.edu/IR-book/html/htmledition/stemming-and-lemmatization-1.html The goal of both stemming and lemmatization is to reduce inflectional forms and sometimes derivationally related forms of a word to a common base form. However, the two words differ in their flavor. Stemming usually refers to a crude heuristic process that chops off the ends of words in the hope of … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)