Learn the syntax, data types, and operations essential for programming in Scala

Become a Scala Developer

In this module, we will learn Scala from the ground up. This module aims to teach us how to write basic programs, assuming we have no prior knowledge of the language. We will start with a brief introduction to Scala to understand its functionality and applications. We will then move discuss the key features and functions of the language (data types, functions, classes, etc.) in detail. In the end, we will have all the basic knowledge of how to program in Scala.

Learn Scala from Scratch

## Task

In this challenge, you had to create two functions.
1. `printAdd` - add two numbers and prints the result
2. `printSubtract` - subtracts two numbers and prints the result


## Solution

A skeleton of the function was already provided for you. Let's look it over.

```
def arithmeticPrinter(f: (Int,Int) => Int, x: Int, y: Int) = {
  print(f(x,y))
} 

def printAdd(x: Int, y: Int) = {
  
}

def printSubtract(x:Int, y: Int) = {
  
}
```

The `arithmeticPrinter` function you created in a previous challenge was provided for you. You had to use `arithmeticPrinter` and an anonymous function to write the function body of both `printAdd` and `printSubtract`. Remember that `arithmeticPrinter`'s first parameter is a function. The function to be passed in this challenge was an anonymous function.

* `printAdd` - To write the function body for `printAdd`, you needed to pass an anonymous function to `arithmetic` operator which takes two parameters and returns their sum.

```
arithmeticPrinter((x,y) => x+y, x, y)
```

* `printSubtract` - To write the function body for `printSubtract`, you needed to pass an anonymous function to `arithmetic` operator which takes two parameters and returns their difference.

```
arithmeticPrinter((x,y) => x-y, x, y)
```

You can find the complete solution below:

>You were required to write the code on **line 6** and **line 10**.

# Task

In this challenge, you had to create two functions.
1. `printAdd` - add two numbers and prints the result
2. `printSubtract` - subtracts two numbers and prints the result


# Solution

A skeleton of the function was already provided for you. Let's look it over.

```
def arithmeticPrinter(f: (Int,Int) => Int, x: Int, y: Int) = {
  print(f(x,y))
} 

def printAdd(x: Int, y: Int) = {
  
}

def printSubtract(x:Int, y: Int) = {
  
}
```

The `arithmeticPrinter` function you created in a previous challenge was provided for you. You had to use `arithmeticPrinter` and an anonymous function to write the function body of both `printAdd` and `printSubtract`. Remember that `arithmeticPrinter`'s first parameter is a function. The function to be passed in this challenge was an anonymous function.

* `printAdd` - To write the function body for `printAdd`, you needed to pass an anonymous function to `arithmetic` operator which takes two parameters and returns their sum.

```
arithmeticPrinter((x,y) => x+y, x, y)
```

* `printSubtract` - To write the function body for `printSubtract`, you needed to pass an anonymous function to `arithmetic` operator which takes two parameters and returns their difference.

```
arithmeticPrinter((x,y) => x-y, x, y)
```

You can find the complete solution below:

>You were required to write the code on **line 6** and **line 10**.

In the following lesson, we will go over the solution of the challenge:  Anonymous Functions. 

Getting to Know Scala

Variables and Types

Operating with Operators

Strings and How to Use Them

Scala's Collection Library

Control Structures

Getting Started with Functions

Higher-Order Functions

Classes and Objects

Conclusion

Solution Review: Anonymous Functions

Task

Solution