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Lesson 11 Programming in Kotlin
Conditional statement : when
we use (when) we have multiple cases with a number of values for the variable
We will explain the idea through the following example:
fun main (args:Array <String>){
printl ("enter a number:")
var number:Int = readLine()!!.toInt()
when (number){
1 ->{
print("A")
}
2,3->{
print("B")
}
In 4..10-> {
print("C")
}else{
print ("out of range")
}
}
In this example we asked the user to enter the number and value then we stored it in the variable number
Then we used the conditional statement when to execute a program command according to the value of the variable entered
If the value of the entered number is equal to 1, the order to be executed is
print ("A")
If it is 2 or 3, then it will be implemented
print ("B")
But if its value is between 4 and 10, then it will be implemented
print ("C")
else the result will be
out of range
We notice that the conditional statement is very much like if-else if-else
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