In the example, we generate a random number. Based on the random value, we print a message to the console. Kotlin while loopThe while keyword is used to create a loop. It runs until the given condition is met. while_loop.kt package com.zetcode fun main() { var i:Int = 0 while(...
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...
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中直接用if..else替代。例: var numB: Int ...
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 ...
Because we used quantity as the subject, we no longer had to put quantity == in each condition! There’s one more shortcut that Kotlin gives us, allowing us to make this even more concise. Since the price-per-book for 3 books is the same as that for 4 books, we can put those ...
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中数据类构造函数中的if条件Kotlin中有no ternary operator，因为if是上面简化示例中所示的表达式。
条件语句中的else 什么是else else 就是对于if条件不满足的时候执行另一个代码块的入口 功能 当if...
While loop executes a block of code repeatedly as long as a given condition is true - while(condition){// code to be executed} Here is an example - varx=1while(x<=5){println("$x")x++}// Displays - 1 2 3 4 5 In the above example, we increment the value of x by 1 in eac...
Kotlin Nested if ExpressionKotlin allows to put an if expression inside another if expression. This is called nested if expressionSyntaxif(condition1) { // code block A to be executed if condition1 is true if( (condition2) { // code block B to be executed if condition2 is true }else{...