Question

Assume you have declared a method as follows: private static double CalculateDiscount(int acct $=0$, double price $=0$, double discount $=0$ ) Which of the following is a legal method call? a. CalculateDiscount (); b. CalculateDiscount $(200.00)$; c. Ca1culateDiscount $(3000.00,0.02)$; d. None of the above is legal.

Name: Problem 18, Chapter 8: Microsoft Visual C# 2017: An Introduction to Object-Oriented Programming
Uploaded: 2022-02-07T18:10:55-08:00
Duration: 40 s
Channel: Manik Pulyani
Description: Assume you have declared a method as follows: private static double CalculateDiscount(int acct =0, double price =0, double discount =0 ) Which of the following is a legal method call? a. CalculateDiscount (); b. CalculateDiscount (200.00); c. Ca1culateDiscount (3000.00,0.02); d. None of the above is legal.

   Assume you have declared a method as follows: private static double CalculateDiscount(int acct $=0$, double price $=0$, double discount $=0$ ) Which of the following is a legal method call?
a. CalculateDiscount ();
b. CalculateDiscount $(200.00)$;
c. Ca1culateDiscount $(3000.00,0.02)$;
d. None of the above is legal.

Microsoft Visual C# 2017: An Introduction to Object-Oriented Programming

Joyce Farrell 7th Edition

Chapter 8, Problem 18

Instant Answer

Solved by Expert Manik Pulyani

02/07/2022

Step 1

The method `CalculateDiscount` is declared with three parameters: an integer `acct` with a default value of `0`, a double `price` with a default value of `0`, and a double `discount` with a default value of `0`. This means that if no arguments are provided, the Show more…

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Assume you have declared a method as follows: private static double CalculateDiscount(int acct $=0$, double price $=0$, double discount $=0$ ) Which of the following is a legal method call? a. CalculateDiscount (); b. CalculateDiscount $(200.00)$; c. Ca1culateDiscount $(3000.00,0.02)$; d. None of the above is legal.

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Key Concepts

Type Conversion in Method Calls

Type conversion concerns play a crucial role when calling methods. The types of the arguments passed must either match the expected parameter types or be convertible without causing data loss. Implicit conversion rules dictate whether the passed values need explicit casting or if a method call is invalid due to potential type mismatches.

Method Call Syntax

Method call syntax requires that the arguments provided in a method call match the declared parameters in both type and order. When default parameters are available, omitted arguments are replaced by their default values, which permits flexible calls such as with no arguments.

Default Parameters

Default parameters allow a method to be called without explicitly passing values for every parameter. When a caller omits an argument, the method uses the default value provided in the declaration, ensuring a valid call without needing multiple overloaded methods.

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