| fun box(): String { | |
| val map: MutableMap<String, Int> = HashMap<String, Int>() | |
| map.put("a", 1) | |
| map.put("bb", 2) | |
| map.put("ccc", 3) | |
| map.put("dddd", 4) | |
| if (map.get("a") != 1) return "fail 1" | |
| if (map.size != 4) return "fail 2" | |
| if (map.get("eeeee") != null) return "fail 3" | |
| if (!map.containsKey("bb")) return "fail 4" | |
| if (map.keys.contains("ffffff")) return "fail 5" | |
| return "OK" | |
| } |