Calculator Conundrum
10 Points
exceptions
Instructions
In this exercise you will be building error handling for a simple integer calculator. To make matters simple, methods for calculating addition, multiplication and division are provided.
The goal is to have a working calculator that returns a string with the following pattern: 16 + 51 = 67, when provided with arguments 16, 51 and +.
SimpleCalculator.Calculate(16, 51, "+"); // => returns "16 + 51 = 67"
SimpleCalculator.Calculate(32, 6, "*"); // => returns "32 * 6 = 192"
SimpleCalculator.Calculate(512, 4, "/"); // => returns "512 / 4 = 128"1. Implement the calculator operations
The main method for implementation in this task will be the (static) SimpleCalculator.Calculate() method. It takes three arguments. The first two arguments are integer numbers on which an operation is going to be conducted. The third argument is of type string and for this exercise it is necessary to implement the following operations:
- addition using the
+string - multiplication using the
*string - division using the
/string
2. Handle illegal operations
Any other operation symbol should throw the ArgumentOutOfRangeException exception. If the operation argument is an empty string, then the method should throw the ArgumentException exception. When null is provided as an operation argument, then the method should throw the ArgumentNullException exception.
SimpleCalculator.Calculate(100, 10, "-"); // => throws ArgumentOutOfRangeException
SimpleCalculator.Calculate(8, 2, ""); // => throws ArgumentException
SimpleCalculator.Calculate(58, 6, null); // => throws ArgumentNullException3. Handle errors when dividing by zero
When attempting to divide by 0, the calculator should return a string with the content Division by zero is not allowed.. Any other exception should not be handled by the SimpleCalculator.Calculate() method.
SimpleCalculator.Calculate(512, 0, "/"); // => returns "Division by zero is not allowed."Calculator Conundrum
10 Points
exceptions
Instructions
In this exercise you will be building error handling for a simple integer calculator. To make matters simple, methods for calculating addition, multiplication and division are provided.
The goal is to have a working calculator that returns a string with the following pattern: 16 + 51 = 67, when provided with arguments 16, 51 and +.
SimpleCalculator.Calculate(16, 51, "+"); // => returns "16 + 51 = 67"
SimpleCalculator.Calculate(32, 6, "*"); // => returns "32 * 6 = 192"
SimpleCalculator.Calculate(512, 4, "/"); // => returns "512 / 4 = 128"1. Implement the calculator operations
The main method for implementation in this task will be the (static) SimpleCalculator.Calculate() method. It takes three arguments. The first two arguments are integer numbers on which an operation is going to be conducted. The third argument is of type string and for this exercise it is necessary to implement the following operations:
- addition using the
+string - multiplication using the
*string - division using the
/string
2. Handle illegal operations
Any other operation symbol should throw the ArgumentOutOfRangeException exception. If the operation argument is an empty string, then the method should throw the ArgumentException exception. When null is provided as an operation argument, then the method should throw the ArgumentNullException exception.
SimpleCalculator.Calculate(100, 10, "-"); // => throws ArgumentOutOfRangeException
SimpleCalculator.Calculate(8, 2, ""); // => throws ArgumentException
SimpleCalculator.Calculate(58, 6, null); // => throws ArgumentNullException3. Handle errors when dividing by zero
When attempting to divide by 0, the calculator should return a string with the content Division by zero is not allowed.. Any other exception should not be handled by the SimpleCalculator.Calculate() method.
SimpleCalculator.Calculate(512, 0, "/"); // => returns "Division by zero is not allowed."