package java_core; public class CustomerObject { String customerId; String customerName; String phoneNumber; String address; void displayDetails(){ System.out.println("Your Customer ID is: "+customerId); System.out.println("Your name is: "+customerName); System.out.println("Your phone number is: "+phoneNumber); System.out.println("Your address is: "+address); } } class tester{ public static void main(String args[]){ CustomerObject customer1 = new CustomerObject(); customer1.customerId = "C001"; customer1.customerName = "gaurav"; customer1.phoneNumber = "9970700040"; customer1.address = "surya bakery, Mysore"; customer1.displayDetails(); } }