Core java : Presentation and Case Study.
Core Java
(CAS41MML302) Internal Assessment – 3. Presentations
As part of
your internal assessment for the Core Java (CAS41MML302) course, you are
required to prepare and deliver a presentation on a chosen topic from the
official Core Java syllabus. This exercise is designed to enhance your
understanding of specific Java concepts, improve your communication skills, and
contribute to your overall course evaluation.
Presentation
& Submission Requirements
You are
expected to:
1.
Select a Topic: Choose one specific topic from Units 1, 2, 3, or 4 of the
Core Java (CAS41MML302) syllabus.
2.
Prepare a Presentation: Develop a comprehensive presentation (e.g., using
Microsoft PowerPoint, Google Slides, etc.).
3.
Deliver the Presentation: Present your chosen topic orally within a strict
time limit.
4.
Submit Supporting Documents: Submit both your presentation slides and a
detailed theoretical document.
Key
Guidelines for Preparation and Delivery
A.
Presentation Delivery (7-10 Minutes)
- Duration: Your
oral presentation must be between 7 to 10 minutes.
- Structure:
- Introduction
(1-2 mins): Clearly introduce your chosen topic and
briefly explain its importance and relevance in Java programming.
- Concept
Explanation (3-4 mins):
Provide a clear, concise, and detailed explanation of the Core Java
concept. Break down complex ideas into easily understandable components,
using diagrams or flowcharts if appropriate.
- Practical
Demonstration/Code Examples (2-3 mins):
Illustrate the concept with practical code examples. You may show
snippets on your slides or be prepared for a brief live demonstration (if
feasible and within time limits). This is crucial for demonstrating
practical understanding.
- Use
Cases & Significance (1 min): Briefly discuss where and why this concept
is typically applied in real-world Java applications.
- Conclusion
(0.5 min): Summarize the key takeaways from your presentation.
B.
Submission Requirements
You must
submit the following two items by the deadline:
1.
Presentation Slides (soft copy and hard copy (PPT/PDF Format):
o
Your slides should be professional, visually appealing, and
well-organized.
o
Use clear fonts, appropriate colors, and avoid
overcrowding slides with text.
o
Include key points, relevant diagrams, and your code examples.
o
Ensure all content is easily readable.
2.
Theoretical Document (Word/PDF Format or handwritten):
o
This document should provide a more detailed written explanation of your
chosen topic.
o
It should elaborate on the theory discussed in your presentation, expand
on your code examples, and discuss any advanced aspects, nuances, or common
pitfalls of the concept.
o
The document should be well-structured with proper headings,
subheadings, and formatting.
o
While the primary focus is on the syllabus content, you may reference
external resources if consulted (e.g., textbooks listed in the syllabus
Core
Java (CAS41MML302) Internal Assessment – Case Study 2
Case Study: Simple Banking Application
Scenario:
You are tasked with developing a simplified console-based banking application.
This application will allow users to create new bank accounts, deposit money,
withdraw money, and view account details. The focus is on demonstrating core
Java concepts in a practical, interactive system.
Your
task is to design and implement a Java program that simulates this banking
system, addressing the following requirements:
1.
BankAccount Class Implementation:
o Create a BankAccount class with private instance variables: accountNumber, accountHolderName, and balance (double).
o The BankAccount class must have a parameterized constructor to initialize
these attributes.
o Provide public getter methods for all instance variables.
o Implement two public methods:
§ deposit(double
amount): Adds the amount to the balance.
§ withdraw(double
amount): Subtracts the amount from the balance, but only
if the balance is sufficient. It should return true on successful withdrawal and false otherwise.
o Override the toString() method to provide a clear string representation of the
account details (e.g., "Account No: [Num],
Holder: [Name], Balance: Rs. [Amount]").
2.
BankingApp Class (with main method):
o Create a class named BankingApp that contains the main method, serving as the application’s entry point.
o Declare an ArrayList<BankAccount> to
store multiple BankAccount objects, representing all accounts in the bank.
o Implement a menu-driven console interface (using Scanner) for the user with the following options:
§ 1. Create New Account:
§ Prompt the user for accountHolderName and an initial balance.
§ Generate a simple accountNumber (e.g., a sequential number, or a
random 4-digit number converted to string).
§ Create a new BankAccount object and add it to the ArrayList.
§ Display the newly created account’s details, including its accountNumber.
§ 2. Deposit Money:
§ Prompt the user for an accountNumber and the amount to deposit.
§ Find the corresponding BankAccount object.
§ Call the deposit() method on that account.
§ Display the updated balance or a success message.
§ 3. Withdraw Money:
§ Prompt the user for an accountNumber and the amount to withdraw.
§ Find the corresponding BankAccount object.
§ Call the withdraw() method.
§ If successful, display the updated balance. If not, display
an error message (e.g., "Insufficient balance" or "Withdrawal
amount must be positive").
§ 4. View Account Details:
§ Prompt the user for an accountNumber.
§ Find and display the toString() representation of the matching BankAccount object.
§ If the account is not found, display an appropriate message
("Account not found").
§ 5. Exit: Terminate the program.
3.
Robust
Input Handling and Validation:
o Implement exception handling (using try-catch blocks) for all user inputs where numeric data is expected
(e.g., initial balance, deposit amount, withdraw amount). Gracefully handle InputMismatchException (or similar) by displaying an error message and allowing
the user to re-enter.
o Ensure that deposit and withdrawal amounts are positive.
If a non-positive amount is entered, display an error message.
o For invalid accountNumber inputs (i.e., an account number that does not exist),
display a user-friendly error message ("Account [number] not
found.").
o Prevent the program from crashing due to unexpected user
input or invalid operations.
