Scala for the Impatient, 3rd Edition

Chapter 2. Control Structures and Functions

Topics in This Chapter A1

• 2.1 Conditional Expressions

• 2.2 Statement Termination

• 2.3 Block Expressions and Assignments

• 2.4 Input and Output

• 2.5 Loops

• 2.6 More about the for Loop

• 2.7 Functions

• 2.8 Default and Named Arguments L1

• 2.9 Variable Arguments L1

• 2.10 The Main Function

• 2.11 Functions without Parameters

• 2.12 Lazy Values L1

• 2.13 Exceptions

• Exercises

In this chapter, you will learn how to implement conditions, loops, and functions in Scala. You will encounter a fundamental difference between Scala and other programming languages. In Java or C++, we differentiate between expressions (such as 3 + 4) and statements (for example, an if statement). An expression has a value; a statement carries out ...