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  1. object Main extends App {
  2. 	type L1[A]  = scala.collection.immutable.List[A]
  3. 	type L2[+A] = scala.collection.immutable.List[A]
  4.  
  5.  
  6. 	val a: L1[String]       = List("apple", "orange", "melon")
  7. 	val b: L1[CharSequence] = a // 定義可能です
  8.  
  9.  
  10. 	val c: L2[String]       = List("apple", "orange", "melon")
  11. 	val d: L2[CharSequence] = c // 定義可能です
  12.  
  13. 	println("実行もOK")
  14. }
Success #stdin #stdout 0.36s 4382720KB
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Standard input is empty
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実行もOK
https://ideone.com/ODNPYa
language:
Scala (scala 2.12.8)
created:
6 years ago
visibility:
public

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