Smart Calculator(Kotlin)

Stage 1/8: 2+2

In this stage, our calculator simply adds two integers numbers from the input, and prints out the result.

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Stage implementation: addNumbers.kt

Example:

> 5 8
13

Stage 2/8: 2+2+

Now, the following modifications are added to our simple program from the previous stage:

• It reads two numbers in a loop and prints the sum in the standard output, until the user inputs /exit.

• If a user enters only a single number, the program prints the same number.

• If a user enters an empty line, the program ignores it.

• When the exit command is entered, the program prints "Bye!", and terminates.

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Stage implementation: lastingCalculator.kt

Example:

> 17 9
26
> -2 5
3
>
> 7
7
> /exit
Bye!