CODEWITHSUNDEEP
loopskotlinwhile-loop
Snowy
Snowy

Reputation: 33

Problem with use of logical operators in while loop in Kotlin

I wanted to use && with while loop in Kotlin but it's not working. First, I generated 2 random numbers, then checked if they are more than 5 and if isn't generate new numbers until they're more than 5.

fun main(args : Array<String>){

    val rand = Random()
    var a:Int = rand.nextInt(10)
    var b:Int = rand.nextInt(10)
    
    while (a<5 && b<5){
        a = rand.nextInt(10)
        b = rand.nextInt(10)
    }
    
    println("a is "+a)
    println("b is "+b)
}

output is:

a is 1
b is 6

Upvotes: 0

Views: 260

Answers (1)

Sergio
Sergio

Reputation: 30605

You are using incorrect logical condition. If you want both numbers to be more than 5 use condition a<5 || b<5 in the while loop:

val rand = Random()
var a:Int = rand.nextInt(10)
var b:Int = rand.nextInt(10)

while (a < 5 || b < 5) {
    a = rand.nextInt(10)
    b = rand.nextInt(10)
}

Upvotes: 1

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