一、Kotlin中集合框架和Java集合框架特别相似
掌握以下例子就Ok了

package cn.kotliner.kotlin.collections

/**
 * Created by wangdong
 * 集合框架
 * kotlin中集合的映射，最终都映射到Java中的list
 * kotlin中所有的list和map都是不可变的接口，如下不可以.add或者.remove
 * 但是kotlin的mutableList和mutablemap是可变的
 * public interface MutableList<E> : List<E>, MutableCollection<E> {
 * Modification Operations
 *override fun add(element: E): Boolean
 *override fun remove(element: E): Boolean
 * Bulk Modification Operations
 *override fun addAll(elements: Collection<E>): Boolean
 *
 * kotlin的mutablemap
 * public interface MutableMap<K, V> : Map<K, V> {
 *public fun put(key: K, value: V): V?
 *public fun remove(key: K): V?
 *@SinceKotlin("1.1")
 *@PlatformDependent
 *public fun remove(key: K, value: V): Boolean {
 * See default implementation in JDK sources
 *return true
 *}
 *public fun putAll(from: Map<out K, V>): Unit
 */
fun main(args: Array<String>) {
    //List集合
    val list = listOf("Hello", "World")
    //list.add()
    //map集合
    val map = mapOf("key" to "value", "2" to "whatever")
    //map.put()
}

object Test{
    val list = listOf(1, 2,4)
}