The statement contains an expression 50 + 25 that returns an integer value 75. So, expressions are part of the statements.In Kotlin, if can be used as an expression. While using if as an expression, the else branch is mandatory to avoid compiler error.In addition, we can assign the ...
Kotlin - if...else ExpressionPrevious Quiz Next Kotlin if...else expressions works like an if...else expression in any other Modern Computer Programming. So let's start with our traditional if...else statement available in Kotlin.Syntax
fun main(args:Array<String>){// Traditional usageval num=-101if(num<0){println("Negative number")}else{println("Positive number")}println("Out of if else statement")} Output: NegativenumberOutofifelsestatement 3. Kotlin – if..else if..else ladder expression In this expression we have ...
This statement is always executed. The expression number < 5 will return false, hence the code inside if block won't be executed. C# if...else (if-then-else) Statement The if statement in C# may have an optional else statement. The block of code inside the else statement will be execu...
In Kotlin, You can useifas an expression instead of a statement. For example, you can assign the result of anif-elseexpression to a variable. Let’s rewrite theif-elseexample of finding the maximum of two numbers that we saw in the previous section as an expression - ...
if...else if...else statement 1. Swift if Statement The syntax of if statement in Swift is: if (condition) { // body of if statement } The if statement evaluates condition inside the parenthesis (). If condition is evaluated to true, the code inside the body of if is executed. If...
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...
问如何将嵌套的if-else语句更改为使用Kotlin的when语句？EN我有以下代码块，并希望使用Kotlin来减少它。
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 = s_age.toInt() if (age > 18) { println("You can obtain a driving licence") } else { println("You cannot obtain a ...
在Kotlin 中,是否可以在“if”条件语句内声明变量? if-statementvariableskotlinoptimization 7 我有这行代码:if (x * y * z > maxProduct) maxProduct = x * y * z 我的问题是每次使用 x * y * z 时都需要重复两遍。我知道我可以在 if 语句之前创建一个变量,像这样: ...