Simple text statistics

index.html

<textarea
  data-bind="value: myText, valueUpdate: 'afterkeydown'"
  placeholder="Type a text to analyze...">
</textarea>
<p>
The string <pre data-bind="text: myText"></pre> has
<ul>
	<li data-bind="text: letters()+' letters.'"></li>
  	<li data-bind="text: vowels()+' vowels.'"></li>
    <li data-bind="text: consonants()+' consonants.'"></li>
    <li data-bind="text: spaces()+' spaces.'"></li>
</ul>

StringDemo.java

package dew.demo.string;

import net.java.html.json.Model;
import net.java.html.json.ComputedProperty;
import net.java.html.json.Property;

@Model(className="StringStatistics", properties={
  @Property(name="myText", type=String.class)
})
class StringDemo {
 
  @ComputedProperty static int letters(String myText) {
     return myText.length();
  } 
  
  @ComputedProperty static int vowels(String myText) {
     return myText.length()-myText.replaceAll("[aeiouAEIOU]","").length();
  } 
  
  @ComputedProperty static int consonants(String myText) {
     return myText.length()-myText.replaceAll("[b-df-hj-np-tv-zB-DF-HJ-NP-TV-Z]","").length();
  } 
  
  @ComputedProperty static int spaces(String myText) {
     return myText.length()-myText.replaceAll("[ ]","").length();
  } 
 
  static {
    new StringStatistics("").applyBindings();
  }
}