Greatest Divisor of two numbers

BiggestDivisor.java

package dew.demo.namesmodel;

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

@Model(targetId="", className="GreatDiv", properties={
   @Property(name = "a", type=int.class),
   @Property(name = "b", type=int.class)
 })
class GreatestDivisor {
  @ComputedProperty
  static int nsd(int a, int b) {
    if (a < b) {
      return nsd(b - a, a);
    } else if (a > b) {
      return nsd(a - b, b);
    }
    return a;
  }
  
  public static void main(String... args) {
     GreatDiv pageModel = new GreatDiv(9,15);
     pageModel.applyBindings();
   }
}

index.html

a: <input data-bind="textInput:a"/>
b: <input data-bind="textInput:b"/>
Greatest divisitor of a and b: <span data-bind="text: nsd"></span>