Overview of Kotlin When Multiple Conditions Using kotlin in multiple conditions will execute the code into the when block. The switch cases we are using in java or other languages, in that we have not required break statement at the ending of any case. In kotlin, we can use when multiple ...
Kotlin's when expression is used to evaluate multiple conditions. It is a more powerful version of Java's switch statement. The when keyword matches its argument against all branches sequentially until some branch condition is satisfied. It can be used either as an expression or as a statement...
If you’ve got multiple conditions to check, you use a when expression. It’s possible to use if for more than one condition. For example, remember our price-per-book lookup in Listing 3.5? We could rewrite it into an if expression, like this: val pricePerBook = if (quantity == 1...
The Type of a when Condition In short, when is an expressive and powerful construct, that can be used whenever you need to deal with multiple possibilities. What you cannot do, is using conditions that return incompatible types. In a condition, you can use a function that accepts any argume...
* * Note that the `==` operator in Kotlin code is translated into a call to [equals] when objects on both sides of the * operator are not null. */ public open operator fun equals(other: Any?): Boolean /** * Returns a hash code value for the object. The general contract of ...
Kotlin enums offer an elegant way to handle multiple conditions in a switch-like structure. In this tutorial, we’ll explore how to use enums with the when() expression and how it enhances code readability and maintainability. 2. The Basics of Enums in Kotlin Before delving into the detail...
类型系统是在计算机科学中,类型系统用于定义如何将编程语言中的数值和表达式归类为许多不同的类型,如何操作这些类型,这些类型如何互相作用。类型可以确认一个值或者一组值具有特定的意义和目的(虽然某些类型,如抽象类型和函数类型,在程序运行中,可能不表示为值)。类型系统在各种语言之间有非常大的不同,也许,最主要的差...
To define a common behavior for multiple cases, combine their conditions in a single line with a comma: when (x) { 0, 1 -> print("x == 0 or x == 1") else -> print("otherwise") } 可以用任意表达式(而不只是常量)作为分支条件 ...
Using the when() clause for comparisons in Kotlin offers two major benefits: The code becomes easier to understand. Each case clearly represents a specific condition, making the code self-documenting. We can handle multiple conditions in a compact and efficient manner. 5. Conclusion In this artic...
return when(x) { 0 -> "zero" else -> "nonzero" } 1. 2. 3. 4. 5. 6. 优先选用上述代码而不是: if (x) return foo() else return bar() when(x) { 0 -> return "zero" else -> return "nonzero" } 1. 2. 3. 4.