A function is a reusable component of a program which optionally takes some input parameters or arguments and performs some actions based on those parameters.
We will write a simple Scala program with a singleton object named Calc which will have a function named calcSum. This function takes 2 numbers as arguments and calculates the sum of all numbers between these 2 numbers including these 2 numbers.
For example: Executing Calc.calcSum(5,8) will calculate sum of numbers 5,6,7,8 which is 5 + 6 + 7 + 8 = 26.
Switch to the Jupyter tab.
Write the code of the class. The program's main singleton class name will be Calc and it will have a function named calcSum.
The program code would be like:
object Calc {
def calcSum( x:Int, y:Int ) : Int = {
....
Press Shift + Enter to execute the code.
Check that you are able to run Calc.calcSum(5,8) in Jupyter and that you are getting the expected result with some more test cases.
Click on "Submit Answer".
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