3_Aggregation Ex.1

import java.util.*;

class Address
{
    int streetNum;
    String city;
    Address(int street, String c)
    {
        this.streetNum = street;
        this.city = c;
    }
}

class StudentClass
{
    int rollNum;
    String studentName;
    
    //Creating HAS-A relationship with Address class 
    Address studentAddr;
    
    StudentClass(int roll, String name, Address addr)
    {
        this.rollNum = roll;
        this.studentName = name;
        this.studentAddr = addr;
    }
    
    public static void main(String args[])
    {
        Address ad = new Address(55, "Agra");
        StudentClass obj = new StudentClass(123, "Chaitanya", ad);
        System.out.println(obj.rollNum + " " + obj.studentName);
        System.out.println("Address: " + obj.studentAddr.streetNum + " " + obj.studentAddr.city);
    }
}