JAVA-Daily-Tasks

Day 03 - Real-World Conditions

📌 Introduction

Day 03 focuses on applying Java conditional statements to real-world problems.

In this day, practical scenarios such as ATM withdrawal, e-commerce delivery, water usage, ticket pricing, salary bonus, shopping discounts, parking fees, and mobile recharge plans are implemented using Java.

The main goal is to improve logical thinking and understand how conditional statements are used in real-world applications.

🎯 Topics Covered

if statement
if-else statement
else-if ladder
Nested if
Comparison operators
Logical operators
Arithmetic operators
User input using Scanner
Real-world condition-based problems
Decision making
Basic calculations

📁 Folder Structure

Day-03-Real-World-Conditions/
│
├── README.md
│
├── Questions/
│   └── Questions.txt
│
├── Solutions/
│   ├── Q01_ATM_Withdrawal.java
│   ├── Q02_ECommerce_Delivery.java
│   ├── Q03_Water_Usage_Charge.java
│   ├── Q04_Water_Park_Ticket.java
│   ├── Q05_Simple_Interest.java
│   ├── Q06_Movie_Ticket.java
│   ├── Q07_Employee_Bonus.java
│   ├── Q08_Shopping_Discount.java
│   ├── Q09_Parking_Fee.java
│   └── Q10_Mobile_Recharge.java
│
└── Screenshots/
    ├── Q01_ATM_Withdrawal.png
    ├── Q02_ECommerce_Delivery.png
    ├── Q03_Water_Usage_Charge.png
    ├── Q04_Water_Park_Ticket.png
    ├── Q05_Simple_Interest.png
    ├── Q06_Movie_Ticket.png
    ├── Q07_Employee_Bonus.png
    ├── Q08_Shopping_Discount.png
    ├── Q09_Parking_Fee.png
    └── Q10_Mobile_Recharge.png

📝 Practice Questions

Q01 - ATM Withdrawal

Get the account balance and withdrawal amount from the user.

Conditions:

Withdrawal amount must be greater than 0
Withdrawal amount must be less than or equal to the balance
Minimum balance after withdrawal should be Rs.500

Display:

Withdrawal Successful
Insufficient Balance
Invalid Withdrawal Amount

Q02 - E-Commerce Delivery Charge

Get the order amount from the user.

Conditions:

Amount ≥ Rs.2000 → Free Delivery
Amount ≥ Rs.1000 → Rs.50 Delivery Charge
Amount < Rs.1000 → Rs.100 Delivery Charge

Display the order amount, delivery charge, and final amount.

Q03 - Water Usage Charge

Get the number of water units used.

Conditions:

0 – 100 units → Rs.5 per unit
101 – 200 units → Rs.7 per unit
Above 200 units → Rs.10 per unit

Calculate and display the total water bill.

Q04 - Water Park Ticket

Get the age of the customer.

Conditions:

Age below 5 → Free
Age 5 – 12 → Rs.100
Age 13 – 59 → Rs.250
Age 60 and above → Rs.150

Display the ticket price.

Q05 - Simple Interest

Get the principal amount, time in years, and customer type.

Customer types:

Student
General

Interest rates:

Student → 5%
General → 7%

Formula:

Simple Interest = (Principal × Rate × Time) / 100

Display the simple interest and total amount.

Q06 - Movie Ticket Price

Get the customer’s age and show type.

Age conditions:

Below 12 → Child Ticket
12 – 59 → Adult Ticket
60 and above → Senior Citizen Ticket

Base ticket price:

Child → Rs.120
Adult → Rs.200
Senior Citizen → Rs.150

If the show type is IMAX, add Rs.100.

Display the final ticket price.

Q07 - Employee Bonus

Get the employee salary and years of experience.

Conditions:

Experience ≥ 10 years → 20% bonus
Experience ≥ 5 years → 15% bonus
Experience ≥ 2 years → 10% bonus
Below 2 years → 5% bonus

Display:

Salary
Bonus
Final Salary

Q08 - Shopping Discount

Get the shopping amount and customer membership type.

Membership types:

Premium
Regular
Non-Member

Discount rules:

Membership	Amount ≥ Rs.5000	Otherwise
Premium	25%	20%
Regular	15%	10%
Non-Member	5%	No Discount

Display the discount and final amount.

Q09 - Parking Fee

Get the number of hours a vehicle is parked.

Conditions:

First 2 hours → Rs.30 per hour
Next 3 hours → Rs.20 per hour
Above 5 hours → Rs.10 per hour

Calculate and display the total parking fee.

Q10 - Mobile Recharge Plan

Get the recharge amount.

Conditions:

Rs.599 and above → Unlimited Data + Calls
Rs.399 and above → 2GB Data per Day + Calls
Rs.199 and above → 1GB Data per Day + Calls
Below Rs.199 → Basic Plan

Display the selected recharge plan.

💻 Solutions

Question	Description	File
Q01	Checks whether the user can withdraw money while maintaining the required minimum account balance	`Q01_ATM_Withdrawal.java`
Q02	Calculates the delivery charge based on the order amount and displays the final amount	`Q02_ECommerce_Delivery.java`
Q03	Calculates the water bill based on the number of units consumed	`Q03_Water_Usage_Charge.java`
Q04	Calculates the ticket price based on the customer’s age	`Q04_Water_Park_Ticket.java`
Q05	Calculates simple interest using different interest rates for student and general customers	`Q05_Simple_Interest.java`
Q06	Calculates the movie ticket price based on age and show type	`Q06_Movie_Ticket.java`
Q07	Calculates the employee bonus based on years of experience	`Q07_Employee_Bonus.java`
Q08	Calculates the shopping discount based on the purchase amount and membership type	`Q08_Shopping_Discount.java`
Q09	Calculates the parking fee based on the number of hours the vehicle is parked	`Q09_Parking_Fee.java`
Q10	Displays the appropriate mobile recharge plan based on the recharge amount	`Q10_Mobile_Recharge.java`

🛠️ Technologies Used

Java
Java Scanner
Conditional Statements (if, if-else, else-if, nested if)
Comparison Operators
Logical Operators
Arithmetic Operators
User Input

▶️ How to Run

Step 1 – Open the Project

Open the Day-03-Real-World-Conditions folder in VS Code, Eclipse, or another Java-supported IDE.

Step 2 – Open the Solutions Folder

Navigate to:

Day-03-Real-World-Conditions/Solutions/

Step 3 – Compile a Java Program

Example:

javac Q01_ATM_Withdrawal.java

Step 4 – Run the Program

java Q01_ATM_Withdrawal

For other programs, replace the filename and class name with the required solution.

📸 Screenshots

Screenshots of the program outputs can be added to the Screenshots/ folder.

Screenshots/
├── Q01_ATM_Withdrawal.png
├── Q02_ECommerce_Delivery.png
├── Q03_Water_Usage_Charge.png
├── Q04_Water_Park_Ticket.png
├── Q05_Simple_Interest.png
├── Q06_Movie_Ticket.png
├── Q07_Employee_Bonus.png
├── Q08_Shopping_Discount.png
├── Q09_Parking_Fee.png
└── Q10_Mobile_Recharge.png

🎯 Learning Goals

By completing Day 03, you will:

Understand real-world conditional problems
Improve Java logical thinking
Practice if, if-else, and else-if statements
Practice nested conditions
Use comparison operators correctly
Use logical operators correctly
Perform calculations based on conditions
Handle user input using Scanner
Improve problem-solving skills
Build confidence in Java programming

📌 Status

Day 03 – Completed

✅ Practice Questions
✅ Java Solutions
✅ README
✅ Folder Structure
⬜ Screenshots