/**
 * Test for our Singleton registry
 */
public class TestB {
 public static void main(String[] args) {
 // First we get a instance from SingletonB
 SingletonB instance1 = SingletonB.GetInstance("Sub1");
 if(instance1 == null) {
 System.out.println("There is no such instance in registry !");
 } else {
 System.out.println(instance1.getClass());
 }
 
 // Then we register a new instance
 try {
 SingletonB instance2 = new SubSingletonB();
 System.out.println("We had created a new instance named \"Sub1\" now");
 } catch (SingletonException e) {
 System.out.println(e.getMessage());
 }
 
 // To get instance again
 instance1 = SingletonB.GetInstance("Sub1");
 if(instance1 == null) {
 System.out.println("There is no such instance in registry !");
 } else {
 System.out.println(instance1.getClass());
 }

 // Finally we create a new instance again
 try {
 SingletonB instance3 = new SubSingletonB();
 System.out.println("We had created a new instance named \"Sub1\" now");
 } catch (SingletonException e) {
 System.out.println(e.getMessage());
 }
 
 }
}