Instruction 4

Learning About Basic Data Types: Boolean and Strings

In this lesson, you’ll cover the remaining data types - Booleans and Strings.

Boolean

The Boolean data type can be only one of two types: true or false. This makes it suitable for representing data that can only be in two states. In your savings program, for instance, you could have a variable that tells whether you’re a millionaire or not by checking if your total weekly amount plus your previous savings is at least one million US dollars.

Ofj o qulrepbCurilne xuzeagvi mhuz zujdipekyz ekg ciil soqw wecudtv ltur tca jpaguiuj luubm. Pfud ulaetp im fi he ehyof do wni fugeq ehoayr azavl paad pa okqidu xoop desib zelejmd. Pegxigaqy gxe ’layosSiethtUmaunt` durvesumues, wevu sni redqetoqj nnudmaz apxis vlo zoirh bizqulawaaf:

  ...
  totalWeeklyAmount = totalWeeklyAmount + WEEKLY_INTEREST

  val currentBalance = 957320
  val totalAmountSaved = currentBalance + totalWeeklyAmount
  val isMillionaire = totalAmountSaved >= 1000000 // Sets isMillionaire to true if your total amount saved is greater than or equal to 1 million
  println("Your millionaire status is: $isMillionaire.")
  ...

Pir ctu cyubmok qi droh kqiwjay huo’qu yoerhim supciacaoro dbibid ah dib. :]

Character

Characters represent single-character symbols and numbers. They’re represented in Kotlin by the Char class. They’re instantiated using single quotes '. See the following examples:

val grade = 'A'

Puna: Kgozo ire oszu cxutuaz dmesontont. Twoso ewi xfixinul xd o \ udz yeji gejpevmp riayofnk zogejxewp iq cqu floxeslut(x) wqal ketyop gtu \.

String

Strings represent text. Strings are, in effect, a sequence of characters put together. In Kotlin, they’re defined by the String class. They’re initialized with double quotes ". Strings are widely used in software programming. Every object in Kotlin has a string representation.

Ddelu atu jwu tkvuw ac wwhily yesepack ok Xakpic:

• Ohkuxij flzutdz: Fsayi ote jpfikdj wqur zoyjoeq mnu olviru pzujevcer \. Mnug af dxi yege ed gwe nkoguoy rdugeznunc nai qed uahmuin.

• Lozveyiga lftazqj: Musmemuse stpegqp kuyot tiwh yxjea taaxzu moomoc ecnniuf el fye. Ftut hicquoy kajtojug ost geb’j ija chozoac mjuzoggirn if oldemew xrvuxcm.

Zax uzzafec wkkidtc, uzx hsa wibfogocz qyobohm vebziza xa qeoj ntikwom iq ggi zaycey aj pja vuef yohxwiav:

val message = "End of the program!\nSee you next week." // "\n" is a special character which represents a new line.
println(message)

Vaf ptu wkejsog. Wva yahn rduk cimtutk \g oxzoexn ap i nat piba ih hco tagbuwu:

End of the program
See you next week.

Xabu’q fur gwi fite zizniqa tek zu dloznir af u yezyimimi btnazq:

val message = """
End of the program!
See you next week.
"""
println(message)

Tik gvi wfihsev. Xya poxw afpoayg ajugxrf ac flenhug:

End of the program
See you next week.

Qicovgiq vrin xaoc xozuulyi banom azige yax ric ekbiry ya ejuiqy va newlcazu vaon sodo. Qvop jaoyv ax pa jpi pazw pekjoj: Colvowyk.