4. Kotlin If-Else If-Else Ladder ExpressionsWe can use the if-else..if-else ladder expression for checking multiple conditions. These conditions are executed from top to bottom.When a condition is true, it executes the corresponding if expression. If none of the conditions is true, it ...
Useelse ifto specify a new condition to test, if the first condition is false Usewhento specify many alternative blocks of code to be executed Note:Unlike Java,if..elsecan be used as astatementor as anexpression(to assign a value to a variable) in Kotlin. See an example at the bottom...
Kotlin if conditionThe if keyword is used to create simple conditional tests. It can be used in conjuction with the else keyword. kotlin_if.kt package com.zetcode fun main() { print("Enter your age: ") val s_age: String? = readLine() if (s_age!!.isEmpty()) return val age:Int ...
在kotlin中,if的用法不局限于判断,他还会有返回,所以我们的写法也很多,比如 2.When表达式 但是我们一般是需要else结尾的,而且我们可以用in来表达 当然,你还可以用is来判断类型,这里就不讲了 3.For 循环 4.While 循环 四.Break和continue Kotlin 有三种结构化跳转表达式: return。默认从最直接包围它的函数或者匿名...
else: elsedo # else语法快 , 需缩进 # 缩进等级与do语法块一致 参数 elsedo : else ...
2. Kotlin – If..Else expression If..Else expression is used when we need to perform some action if a condition is true and we need to perform a different action when a condition is false. For example: My father will give me money if I pass the exam else they will get angry. If ...
在Kotlin中其实是不存在三元运算符(condition ? then : else)这种操作的。 那是因为if语句的特性(if表达式会返回一个值)故而不需要三元运算符。 例: // 在Java中可以这么写,但是Kotlin中直接会报错。 // var numB: Int = (numA > 2) ? 3 : 5 ...
Kotlin if...else ExpressionKotlin if...else can also be used as an expression which returns a value and this value can be assigned to a variable. Below is a simple syntax of Kotlin if...else expression:Syntaxval result = if (condition) { // code block A to be executed if condition...
for(numin1..10){if(num%2==0){continue;}print("${num}")} # Output13579 Conclusion That’s all folks! In this article, you learned how to use Kotlin’s conditional expressions likeif,if-else,when, and looping statements likefor,whileanddo-while. You can find more articles from the ...
A when expression in Kotlin must include conditions for all possible values. For this reason, we say that a when expression must be exhaustive. This is also the reason that you usually need to include an else condition at the bottom. Sometimes you can be exhaustive even without an else cond...