class ObjX {

    int i;

    String name;


    // This is the first constructor: only takes in one parameter for the name.

    public ObjX (String initialName)
    {
        name = initialName;
        i = 0;
    }
    

    // This is the second constructor: both name and ID are initialized.

    public ObjX (String initialName, int ID)
    {
        name = initialName;
        i = ID;
    }


    public String toString ()
    {
        return "My name is " + name + " and my ID number is " + i;
    }

} 


public class DynamicExample12 {

    public static void main (String[] argv)
    {
        // The old way: without using constructors. Will not compile
        ObjX x = new ObjX ();
        x.i = 5;
        x.name = "Mr. X";
        System.out.println (x);
        
        // Use the first constructor.
        x = new ObjX ("Mr. X");
        System.out.println (x);

        // Use the second one.
        x = new ObjX ("Mr. X", 5);
        System.out.println (x);
    }

}