Reference Person ke; //only created the reference,not an object. It points to nothing now(null). ke new Person(); //create the object (allocate storage in memory),and ke is initialized. ke.name=“Ke Wang”; //access the object through the reference Can have multiple reference to one object No reference means the object is inaccessible forever goes to garbage collectorReference Person ke; //only created the reference, not an object. It points to nothing now (null). ke = new Person(); //create the object (allocate storage in memory), and ke is initialized. ke.name=“Ke Wang”; //access the object through the reference Can have multiple reference to one object No reference means the object is inaccessible forever – goes to garbage collector