valcars=arrayOf("Volvo","BMW","Ford","Mazda")println(cars[0])// Outputs Volvo Try it Yourself » Note:Just like with Strings, Array indexes start with 0: [0] is the first element. [1] is the second element, etc. Change an Array Element ...
Here's an example of anadd-kernelscript to create a custom Kotlin Kernel for Jupyter Notebook: python -m kotlin_kernel add-kernel --name"JDK 15 Big 2 GPU"--jdk~/.jdks/openjdk-15.0.2 --jvm-arg=-Xmx8G --env CUDA_VISIBLE_DEVICES 0,1 ...
class AppRunner { companion object { @JvmStatic fun main(args: Array<String>) { SpringApplication.run(AppRunner::class.java, *args) } } } 集合字面量 在Java中,初始化列表非常繁琐: import java.util.Arrays; ... List<String> strings = Arrays.asList("Saab", "Volvo"); 初始化地图非常冗长...
funmain(args:Array<String>){ println(templateString("Tom")) } 1. 2. 3. 4. 5. 6. 7、数据类型 Java: 一、基本数据类型: 二、引用数据类型: 类,接口,数组 Kotlin: 一、基本数据类型: 二、引用数据类型: 可空类型(Null)、对象类型(Object)、数组类型(Array) 三、其他(Java中没有的): Tuple元组...
Up until now we have seen the basics of Kotlin: how to define functions and classes, the control flow constructs available, etc. In this chapter we are going to put all of this together to create a simple Kotlin program. This program will convert a bunch of CSV files in a bunch of JS...
Variable number of arguments (vararg{: .keyword }) can be passed in the named form by using the spread operator: 代码语言:javascript 复制 fun foo(vararg strings: String) { ... } foo(strings = *arrayOf("a", "b", "c")) Note that the named argument syntax cannot be used when calli...
import com.haife.app.kotlin.kotlindemo.strings.lastChar println("Kotlin".lastChar()) //可以使用*号 import com.haife.app.kotlin.kotlindemo.strings.* 可以使用关键字as来修改导入的类或者函数名称import com.haife.app.kotlin.kotlindemo.strings.lastChar as last println("Kotlin".last()) ...
here we are using the extension function which we create for our Strings. when we actually run the code now we can see that the run and also the classical way of getting the older person prints out the same thing . so this is older so it prints out Dave and then this with it return...
*/internalclassLeakSentryInstaller:ContentProvider(){override funonCreate():Boolean{CanaryLog.logger=DefaultCanaryLog()val application=context!!.applicationContextasApplication InternalLeakSentry.install(application)// 进行初始化工作,核心returntrue}override funquery(uri:Uri,strings:Array<String>?,s:String?,...
A string is a basic data type in a programming language. In Kotlin, theStringclass represents character strings. Kotlin string literals are implemented as instances of this class. Kotlin uses double quotes to create string literals. Kotlin has a rich API for working with strings. It contains pl...