Scala Tutorial and concepts

Category : Tutorial | Sub Category : Scala Tutorial | By Prasad Bonam Last updated: 2023-11-12 07:10:59 Viewed : 233

Scala is a high-level programming language that combines object-oriented and functional programming paradigms. It was created by Martin Odersky and first released in 2003. The name "Scala" stands for "scalable language," reflecting its design goal of being concise, elegant, and suitable for building large and scalable systems.

1. Introduction to Scala

• What is Scala?
• Where to use Scala
• Basic “Hello ” program of scala
• History and development of Scala
• Advantages of Scala over other programming languages.

2. Getting Started with Scala

• Download And Install Scala IDE
• Installing Scala and development tools.
• Create a Scala maven project
• Running your first Scala program.

3. Basic Scala Syntax

• Scala Variables and Data Types
• Scala Variables and Data Types program
• Expressions and operators.
• Control structures (if, while, for). in scala
• Functions and methods in Scala
• Scala for-loop and yield
• Scala Break statement
• Scala while and do/while loop
• Scala Control structures(if-else) program
• Understanding the Scala REPL (Read-Eval-Print Loop).

4. Collections in Scala

• Scala - collections in Scala
• Lists, arrays, and sequences in Scala
• Maps and sets in Scala
• Immutable vs. mutable collections in scala
• Common collection operations in scala
• Scala - Multiple ways to iterate over a list
• Scala Collections - List
• Scala Collections – List (sort, foreach)
• Scala Collections – Seq
• Multiple ways to iterate over a Set
• Scala Collections List, Sequence, reduceLeft, filter, foldLeft, map and flatMap
• Scala Map and flatMap difference
• Scala Map and foreach
• Scala multi dimensionalArray
• Scala Set ,Union and Intersect
• Scala Set and foreach
• Scala Single dimensionalArray
• Scala - Multiple ways to iterate over a Map in Scala

5. Object-Oriented Programming in Scala

• Classes and objects in scala
• Scala Singleton Object
• Scala object and class
• Scala constructor and method
• Scala Tuple (Return Multiple Values)
• Scala- call a method of an object
• Implementations of equals, hashCode, and toString method in Scala.
• Constructors in Scala
• Scala - Inheritance and polymorphism
• Scala Method Overloading
• Scala Method Overriding
• Scala - Traits and mixins
• Scala trait,extends,with and Unit
• Scala- Case classes and pattern matching
• Case class examples in Scala
• Scala Match and Case expressions like a switch statement

6. Functional Programming in Scala

• First-class functions and higher-order functions in scala
• Closures and immutability in scala
• Recursion and tail recursion
• Option, Some, and None for handling null values

7. Error Handling

• Handling exceptions in Scala
• Using Try, Success, and Failure for error handling in scala
• Handling errors with pattern matching in scala
• Scala try catch and finally

• Scala program examples
• Read data from Hbase using Spark RDD and Scala
• Scala with HBase -Read, Insert and Update operations
• Scala with JDBC connection and SQL DELETE
• Scala with JDBC connection and SQL INSERT
• Scala with JDBC connection and SQL SELECT
• Scala with JDBC connection and SQL UPDATE