Random Kotlin stuff

random.kt

fun <K> HashMap<K,String>.build() {
    for (i in this.keys) {
        val x = i.toString()
        this.put(i, x)
    }
}

/*
fun HashMap<Int,String>.build() {
    this.put(0, "0")
    for (i in 1..10) {
        this.put(i, "$i")
    }
}
*/

fun StringBuilder.build(nums: Int): StringBuilder {
    append("1..").append(nums)
    return this
}

/*
customers = ['c1':[1,2,3], 'c2':[1,2,4], 'c3':[2]]

moreEvens = customers.findAll { c -> 
    c.value.findAll { it % 2 == 0 }.size > c.value.size / 2 }
*/

val customers = hashMapOf(
    "c1" to listOf(1,2,3),
	"c2" to listOf(1,2,4),
	"c3" to listOf(2))
val moreEvens = customers.filter { c -> 
    c.value.filter { it % 2 == 0 }.size > c.value.size / 2 }

fun main(args: Array<String>) {
    println(StringBuilder().build(5).append("!"))
    
    val moreEvens = customers.filter { 
        c -> c.value.filter { it % 2 == 0 }.size > c.value.size / 2 }
    println(moreEvens)
}
/*
    var map = HashMap<Int,String>()
    map.put(0, "foo")
    map.put(1, "1")
    map.build()
    println(map)
}*/