Content ITV PRO
This is Itvedant Content department
Building Robust Booking System with Exception Handling
Business Scenario
Pre-Lab Preparation
-
Exception and its causes
-
Important blocks in exception handling
-
Types of exception
-
Creating custom exception classes
Task 1: Declaring the Passenger class
1
In order to store the passenger data, we need to declare the Passenger Class
Task 2: Accepting Passenger Input from user
1
Create the class PassengerData, that defines the main method. Through this method user input will be accepted.
2
run the code and check the output
Task 3: Exception handling, while accepting the input ‘age’
1
Write the try-catch block to accept user input and handling the invalid input
2
run the code to check the output
Task 4: Throwing an exception to validate the passport number
1
modify the setter method, to accept the passport no with length 7
2
Change the main method code, to handle the exception if entered passport no is invalid
3
run the code to check the output
Task 5: Creating a custom exception, for invalid passport no
1
define the exception class InvalidPassportNumber
2
Modify the setter of the Passenger Class
3
3
Change the main method, to handle this exception
4
run the code to check the output
Great job!
-
We have understood how to apply exception handling concepts for validating user inputs
-
We have understood creating custom exceptions, throwing them manually and handling them in application
Checkpoint
Java_Lab_14
By Content ITV
