Scala Keywords

Keywords or Reserved words are the words in a language that are used for some internal process or represent some predefined actions. These words are therefore not allowed to use as variable names or objects. Doing this will result in a compile-time error.

Example:

// Scala Program to illustrate the keywords

// Here object, def, and var are valid keywords
object Main
{
    def main(args: Array[String])
    {
        var p = 10
        var q = 30
        var sum = p + q
        println("The sum of p and q is :"+sum);
    }
}

Output:

The sum of p and q is :40

Scala contains following keywords:

abstract

case

catch

class

def

do

else

extends

false

final

finally

for

forSome

if

implicit

import

lazy

match

new

null

object

override

package

private

protected

return

sealed

super

this

throw

trait

true

try

type

val

var

while

with

yield

>:

⇒

=>

=

<%

<:

←

<-

#

@

:

_

Example:

// Scala Program to illustrate the keywords

// Here class keyword is used to create a new class
// def keyword is used to create Function
// var keyword is used to create a variable
class GFG
{
    var name = "Priyanka"
    var age = 20
    var branch = "Computer Science"
    def show()
    {
    println("Hello! my name is " + name + "and my age is"+age);
    println("My branch name is " + branch);
    }
}

// object keyword is used to define
// an object new keyword is used to
// create an object of the given class
object Main
{
    def main(args: Array[String])
    {
        var ob = new GFG();
        ob.show();
    }
}

Output:

Hello! my name is Priyankaand my age is20
My branch name is Computer Science