Method Overloading: Tax Calculation

Learning Objective: Use method overloading with different parameter counts in practical scenarios

Create 3 types of calculateTax methods. Define 1-parameter version (price only), 2-parameter version (price x quantity), and 3-parameter version (price x quantity - discount).

Method Definitions

1. CalculateTax(int price): Tax on single price (price x 0.1)
2. CalculateTax(int price, int quantity): Tax on total amount
3. CalculateTax(int price, int quantity, double discountRate): Tax after discount

Output

[tax1]
[tax2]
[tax3]