Apex Program: Senior Citizen Discount Check – Real-time Scenario with Explanation

Scenario: A company wants to check if a customer is eligible for a discount based on age.
Use Case: If the customer’s age is above 60, show “Senior Discount Applicable”.

Apex Program:

Explanation:

1. public class DiscountChecker {
   • Creating a class named DiscountChecker
   • Real-world use: This class can be used in a retail or healthcare system
2. public static void checkDiscount(Integer age) {
   • Method that takes customer age as input
   • Integer age – age value passed when method is called
3. if(age >= 60) {
   • Checking if the customer is 60 or older
   • Condition to verify senior citizen eligibility
4. System.debug('Senior Discount Applicable');
   • Logs message if condition is true
   • Could be extended later to apply discount on billing
5. } else {
   • If condition fails (i.e., age < 60), then this block runs
6. System.debug('No Discount Available');
   • Message when customer is not eligible
7. } – method and class close

Sample Calls + Output:

Real-Life Usage:

• Can be used in Billing System of:
  • Medical stores
  • Movie ticket booking
  • Online shopping for seniors

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