Scala Jump Start

Haim MichaelMay 30th, 2014

All logos, trademarks and brand names used in this presentation, such as the logo of Scalaor any of its frameworks, belong to their respective owners. Haim Michael and LifeMichael are independent and not related, affiliated or connected neither with Scala, EPFL, TypeSafe or any of the companies and the technologies mentioned in this presentation.

You can find the video clip at http://youtu.be/XBMbRZs7uFE.

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Table of ContentLi fe M

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m● What is Scala?● Shorter Code● The Scala Story● Scala in The Industry● Scala Comparison● IDEs for Scala● The Main Documentation● Learning Resources● Questions & Answers

What is Scala?● Scala is a blend of object oriented programming and a

functional one. This mixture is the source of its strength.

● Scala is compatible with Java. The two languages are

interoperable with each other. We can integrate the code

we write in Scala with our code in Java and vice verso.

● Scala is kind of an improvement to Java. Not only that

Scala re-uses Java's types it also “dresses them up”.

scala-lang.org

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Shorter CodeLi fe M

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m● Comparing with Java, when using Scala our code becomes

significantly shorter.

class Rectangle {

private double width;

private double height;

public Rectangle (double width, double height) {

this.width = width;

this.height = height;

}

}

class Rectangle(var width: Double, var height: Double)

Scala

Java

The Scala Story● The design of Scala started in 2001 at EPFL by Martin

Odersky, who had previously worked on developing the

first Java compilers.

● Typesafe was founded in 2011 in order to assist

companies with the development of software

applications using the Scala programming language and

its frameworks.

www.typesafe.com

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Scala in The Industry● Scala is highly popular on the server side. Many of the

companies that use Scala are either startup based with

highly talented people or very big companies with the

required budget.

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Scala ComparisonLi fe M

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Learning Curve

Pop

ular

ity

Java

Scala

Easy Difficult

Low

H

igh

PHP

JavaScript

C#

Scala ComparisonLi fe M

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m

Object Oriented

Fun

ctio

nal

Java

Scala

Weak Strong

Wea

k

Str

ong

PHPJavaScript

C#

Scala ComparisonLi fe M

ic hae l .c o

m

Development Process

Pla

tform

Dep

ende

ncy

Java

Scala

Easy Difficult

Low

Hig

h

PHP

JavaScript

C#

Scala ComparisonLi fe M

ic hae l .c o

m

Hosting Services

Ope

n S

our

ce C

omm

unity Java

Scala

Few Many

Sm

all

Big

PHP

JavaScript

C#

IDEs for Scala Development● You can develop in Scala using the command line. You

can alternatively use one of the available Java IDEs. You

will need to install a plugin that allows coding in Scala.

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scala-ide.org www.netbeans.org

www.jetbrains.com/idea/

The Main Documentation● You can find the complete API documentation online at

http://www.scala-lang.org/documentation/.

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Learning Resources● In order to start developing in Scala the minimum would be

installing JDK and the Scala SDK right after.

● You can find the Scala SDK available for free at

http://www.scala-lang.org/download/.

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Learning Resources● You can find an excellent free course by Martin Odersky

available for free at www.coursera.org.

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ic hae l .c o

m

Learning Resources● You can find the following excellent books written by Martin

Odersky.

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m

Learning Resources● You can find the Israeli Guide to Scala available for free

personal use at http://www.scalabook.co.il.

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Learning Resources● You can find a growing number of online free courses about

various topics in the Scala at http://abelski.lifemichael.com.

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m

Questions & Answers● Three courses you might find interesting include

Software Engineering in PHP

more info

Android 4.4 Java Applications Development

more info

HTML5 Cross Platform Mobile Applications

more info

● If you enjoyed my lecture please leave me a comment

at http://speakerpedia.com/speakers/life-michael.

Thanks for your time!

Haim.

Li fe M

ic hae l .c o

m

Scala Jump Start

Haim MichaelMay 30th, 2014

All logos, trademarks and brand names used in this presentation, such as the logo of Scalaor any of its frameworks, belong to their respective owners. Haim Michael and LifeMichael are independent and not related, affiliated or connected neither with Scala, EPFL, TypeSafe or any of the companies and the technologies mentioned in this presentation.

You can find the video clip at http://youtu.be/XBMbRZs7uFE.

LifeMic hael.c o

m

Table of ContentLifeMic hael.c o

m● What is Scala?● Shorter Code● The Scala Story● Scala in The Industry● Scala Comparison● IDEs for Scala● The Main Documentation● Learning Resources● Questions & Answers

What is Scala?● Scala is a blend of object oriented programming and a

functional one. This mixture is the source of its strength.

● Scala is compatible with Java. The two languages are

interoperable with each other. We can integrate the code

we write in Scala with our code in Java and vice verso.

● Scala is kind of an improvement to Java. Not only that

Scala re-uses Java's types it also “dresses them up”.

scala-lang.org

LifeMic hael.c o

m

Shorter CodeLifeMic hael.c o

m● Comparing with Java, when using Scala our code becomes

significantly shorter.

class Rectangle {

private double width;

private double height;

public Rectangle (double width, double height) {

this.width = width;

this.height = height;

}

}

class Rectangle(var width: Double, var height: Double)

Scala

Java

The Scala Story● The design of Scala started in 2001 at EPFL by Martin

Odersky, who had previously worked on developing the

first Java compilers.

● Typesafe was founded in 2011 in order to assist

companies with the development of software

applications using the Scala programming language and

its frameworks.

www.typesafe.com

LifeMic hael.c o

m

Scala in The Industry● Scala is highly popular on the server side. Many of the

companies that use Scala are either startup based with

highly talented people or very big companies with the

required budget.

LifeMic hael.c o

m

Scala ComparisonLifeMic hael.c o

m

Learning Curve

Pop

ular

ity

Java

Scala

Easy Difficult

Low

Hig

hPHP

JavaScript

C#

Scala ComparisonLifeMic hael.c o

m

Object Oriented

Fun

ctio

nal

Java

Scala

Weak Strong

Wea

k

Str

ong

PHPJavaScript

C#

Scala ComparisonLifeMic hael.c o

m

Development Process

Pla

tform

Dep

ende

ncy

Java

Scala

Easy Difficult

Low

H

igh

PHP

JavaScript

C#

Scala ComparisonLifeMic hael.c o

m

Hosting Services

Ope

n S

ourc

e C

omm

unity Java

Scala

Few Many

Sm

all

Big

PHP

JavaScript

C#

IDEs for Scala Development● You can develop in Scala using the command line. You

can alternatively use one of the available Java IDEs. You

will need to install a plugin that allows coding in Scala.

LifeMic hael.c o

m

scala-ide.org www.netbeans.org

www.jetbrains.com/idea/

The Main Documentation● You can find the complete API documentation online at

http://www.scala-lang.org/documentation/.

LifeMic hael.c o

m

Learning Resources● In order to start developing in Scala the minimum would be

installing JDK and the Scala SDK right after.

● You can find the Scala SDK available for free at

http://www.scala-lang.org/download/.

LifeMic hael.c o

m

Learning Resources● You can find an excellent free course by Martin Odersky

available for free at www.coursera.org.

LifeMic hael.c o

m

Learning Resources● You can find the following excellent books written by Martin

Odersky.

LifeMic hael.c o

m

Learning Resources● You can find the Israeli Guide to Scala available for free

personal use at http://www.scalabook.co.il.

LifeMic hael.c o

m

Learning Resources● You can find a growing number of online free courses about

various topics in the Scala at http://abelski.lifemichael.com.

LifeMic hael.c o

m

Questions & Answers● Three courses you might find interesting include

Software Engineering in PHP

more info

Android 4.4 Java Applications Development

more info

HTML5 Cross Platform Mobile Applications

more info

● If you enjoyed my lecture please leave me a comment

at http://speakerpedia.com/speakers/life-michael.

Thanks for your time!

Haim.

LifeMic hael.c o

m