Pattern matching is a mechanism for checking a value against a pattern. A successful match can also deconstruct a value into its constituent parts. It is a more powerful version of the switch statement in Java and it can likewise be used in place of a series of if/else statements.

1. Presented By: Kuldeepak Gupta
Pattern Matching

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3. Agenda
01 What is Pattern Matching
02 How it is Different
04 Demo
Different Types of Pattern Matching
03

4. Pattern Matching In
Scala

5. Pattern Matching in Scala
● A mechanism of checking a value against a Pattern.
● It is a way of checking the given sequence of tokens for the presence of
the specific pattern.
● Expression are matched against a pattern.

6. How it is Different

7. How it is DIFFERENT !!!
● It is bit similar to the ‘switch’ statement in languages like JAVA, C etc..
● Does we really need this ???
○ Scala’s match expression have a rich set of “patterns” for
matching.
○ MatchError is thrown when no pattern matches.
○ No fall through to the next alternative.

8. Different Types Of
Pattern Matching

9. Creating and Instantiating Actors
● WildCard Pattern
● Variable Pattern
● Typed Pattern
● Constant Pattern
● Stable Pattern
● Tuple Pattern
● Constructor Pattern
● Sequence Pattern
● Pattern Alternatives
● Pattern Binders

10. Demo

11. Thank You !