If the value to be converted is null then the operator throws an exception. 代码语言:javascript 代码运行次数:0 运行 AI代码解释 // it prints the length of text or throws an exception depending on whether text is null or not println(text!!.length) This operator has to be used with ...
We can use delay if we wrap it into runBlocking {} that starts a coroutine and waits until it's done: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 runBlocking { delay(2000) } So, first the resulting program prints Start, then it runs a coroutine through launch {}, then it runs...
In theadd-kernelscript, thenameargument is required if thejdkargument is not specified. Alternatively, if thejdkargument is specified, but thenameargument is not, then the name is taken from theJDK $vendor $versionargument, which is detected from the JDK. ...
@NotNull Continuation $completion) { Object $continuation; label25: { if ($completion instanceof <undefinedtype>) { $continuation = (<undefinedtype>)$completion; if (((<undefinedtype>)$continuation).label & Integer.MIN_VALUE) != 0) { ((<undefinedtype>)$continuation).label -= Integer.MIN...
* * A failure of a child job that was created using [async][CoroutineScope.async] can be handled via [Deferred.await] on the resulting deferred value. * * If [parent] job is specified, then this supervisor job becomes a child job of its parent and is cancelled when its ...
(d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works...
field = value } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 属性初始化 属性的初始化尽量在构造方法中完成 无法在构造方法中初始化,尝试降级为局部变量 var 用 lateinit 延迟初始化,val 用 lazy 可空类型谨慎用 null 直接初始化
The default value isLABEL_ALIGNEDwhen a label is provided for the row,INDEPENDENTotherwise. row("Label:"){textField()}row("Long label:"){textField()} Here both labels are aligned together because rows haveLABEL_ALIGNEDby default. If an independent layout is needed, thenINDEPENDENTlayout should...
class Data( @Json(serializeNull = false) val id: Int? ) println(Klaxon().toJsonString(Data(null))) // displays {} If serializeNull is false, the Kotlin default values for this property will be ignored during parsing. Instead, if the property is absent in the JSON, the value will def...
You can retrieve stored values via thegetXXX()methods or their operator shortcuts. If a key is not present, then the supplied default will be returned instead. vala:Int= settings.getInt("key")valb:Int= settings.getInt("key", defaultValue = -1)valc:Int= settings["key", -1] ...