正式上架:《Kotlin极简教程》Official on shelves: Kotlin Programming minimalist tutorial 在Kotlin 中,所有东西都是对象:数字、字符、布尔和数组。(JavaScript) 数字 Kotlin 提供了如下的内置类型来表示数字(长度bit): Double(64) Float(32) Long(64) Int(32)
= 1 // A boxed Int (java.lang.Integer) val b: Long? = a // implicit conversion yields a boxed Long (java.lang.Long) print(a == b) // Surprise! This prints "false" as Long's equals() check for other part to be Long as well 假设这样是可以的,这里我们就悄无声息的丢掉了一些...
Visit Kotlin arrays tutorial to learn more about arrays in Kotlin. arrays.kt package com.zetcode fun main() { val numbers = IntArray(5) numbers[0] = 3 numbers[1] = 2 numbers[2] = 1 numbers[3] = 5 numbers[4] = 6 val len = numbers.size for (i in 0 until len) { println(...
vala:Int=10000print(a identityEquals a)// Prints 'true'valboxedA:Int? = avalanotherBoxedA:Int? = a print(boxedA identityEquals anotherBoxedA)// !!!Prints 'false'!!! 另一方面它们值相等: vala:Int=10000print(a == a)// Prints 'true'valboxedA:Int? = avalanotherBoxedA:Int? = a pri...
*/funmain(args:Array<String>){valx = args[0].toInt()//Check if a number lies within a range:valy =10if(xin1..y -1) println("OK")//Iterate over a range:for(ain1..5) print("${a}")//Check if a number is out of range:println()valarray = arrayListOf<String>() ...
and (bits) bitwise and x.and(y) or (bits) bitwise or x.or(y) xor (bits) bitwise xor x.xor(y) inv() bitwise inverse x.inv()ExampleFollowing example shows different calculations using Kotlin bitwise functions:Open Compiler fun main(args: Array<String>) { var x:Int = 60 // 60 = ...
There is no ternary operator in Kotlin as you might find in other languages. For example, the condition? then : elseconstruction isn’t available. You can use theif..elseexpression to achieve the same result: var max: Int if (a > b) { max = a print ("A is Greater") } else { ...
B- To convert a numeric data type to another type, you must use provided helper functions. C- Int, Short, Float, Byte, Long, Double can be used to define Numeric Data types D- All of the above Print Page Previous Next Advertisements...
How this works is when you try to use the “times” function which doesn’t exist on the Int the object will be automatically boxed into an IntWithTimes object and the times function will executed on that. 249 + This will print “Hello” 5 times. How this works is when you try to ...
As such, actors will typically have an infinite loop inside the doRun() method that will process all messages that come in: val actor = object : Actor<Int, Void?>("loopingActor", null) { @Suspendable override fun doRun(): Void? { while (true) { val msg = receive() if (msg > 0...