1. Compile and run the program to get the output. Explain the output. class Address String city, state; public Address(String city, String state) { this.state = state; } class Patient { String name; Address address; public Patient(String name, Address address) { this.address address; } void display(){ System.out.println("Name: " +name); System.out.println("Address: "+address.city } public class ExampleAggregation { public static void main(String[] args) { this.city= city; System.out.println("PATIENT INFORMATION"); ptl.display(); pt2.display(); this.name = name; Address addr1 = new Address("Batu Pahat","Johor"); Address addr2 = new Address("Shah Alam","Selangor"); Patient pt1 = new Patient("Yaya",addrl); Patient pt2 = new Patient("Ying",addr2); +","+address.state+" ");