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  1. fun main(args : Array<String>) {
  2. 	println("あなたのちんちん何cm？")
  3.     val chimpo_length = readLine() //chimpo_length: String?(null許容型)
  4.     if(chimpo_length != null){
  5.     	println("雑魚が…俺のちんちんは" + (chimpo_length.toInt() * 2) + "cmだ") //ifの中ではnull安全
  6.     }
  7. }
Success #stdin #stdout 0.07s 2181120KB
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あなたのちんちん何cm？
雑魚が…俺のちんちんは30cmだ
https://ideone.com/O0SsGc
language:
Kotlin (kotlin 1.3.21)
created:
4 years ago
visibility:
secret

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