GTU BE04000231 Object Oriented Programming Summer 2026 Question Paper & PDF

Demonstrate the working of break, continue, labelled break, labelled continue with proper example.

Write a Java program to simulate a simple ATM or cashier. Given an integer amount to be dispensed (e.g., 787), calculate and display the minimum number of currency notes of denominations 100, 50, 10, 5, 2, and 1 that would be given to the user.

Write a Java program to design a class Time with hours (int) and minutes (int) as data members. Include method setTime(int h, int m) to initialize the time and displayTime() to display the time. Implement a method addTime(Time t1, Time t2) that adds t1 and t2, and print the result.

Design a Java program for an Online Order Processing System using partial interface implementation. Create an interface Order with three methods: placeOrder(String item, int qty), cancelOrder(int orderId), generateBill(). Create an abstract class PartialOrder that implements the Order interface but provides implementation only for placeOrder() (storing order details). Create a concrete class FinalOrder that extends PartialOrder and implements the remaining methods cancelOrder() and generateBill(). Accept user input for order details and allow user to either generate a bill or cancel the order.

import java.util.*; public class Main { public static void main(String[] args) { List list = new ArrayList<>(); Set set = new HashSet<>(); list.add("C++"); list.add("Java"); list.add("C++"); set.add("C++"); set.add("Java"); set.add("C++"); System.out.print(list.size() * set.size()); } }

Develop a JavaFX application for a basic login system. When the user clicks the login button, the application should validate the entered credentials against predefined values and generates appropriate response message.