Issue
This Content is from Stack Overflow. Question asked by Tom Levi
hello guys am new to kotlin
i try to make a quiz app , so the questions that included strings i put them manually
and math questions are random ( loop )
the help i ask for how can i get random math operator here
println("${randomNumber1} * ${randomNumber2}")
also println("${randomNumber1} * ${randomNumber2}")
part from the code :
try {
for (i in defaultMain until defaultMain+40) {
val randomNumber1 = (0..30).random()
val randomNumber2 = (1..10).random()
println("${randomNumber1} * ${randomNumber2}")
var input = readLine()!!.toInt()
when (input) {
randomNumber1 * randomNumber2 -> "Right! 5 Points added to your score , and 5+ bonus"
else -> lose() }
this.bonus = this.bonus + 5
this.score = this.score + 5
this.score = this.score + this.bonus
println("Your current score: ${this.score}")
}
} catch (e : Exception)
{
println(e.message)
exitProcess(0)
}
Solution
define operators in an array like below and access from index by generating random number:
char[] x = { '-', '+', '*', '/', '^', '%' };
Random random = new Random();
int random_operator = random.nextInt(x.length);
System.out.println(x[random_operator]);
This Question was asked in StackOverflow by Tom Levi and Answered by Amir It is licensed under the terms of CC BY-SA 2.5. - CC BY-SA 3.0. - CC BY-SA 4.0.