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  1. trait A
  2.  
  3. trait B <: A
  4. class C <: A
  5. object D <: A
  6.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
/opt/scala/bin/scalac: line 50: /dev/null: Permission denied
Main.scala:4: error: classes are not allowed to be virtual
class C <: A
        ^
Main.scala:5: error: ';' expected but '<:' found.
object D <: A
         ^
two errors found
spoj: The program compiled successfully, but Main.class was not found.
      Class Main should contain method: def main(args: Array[String]).
stdout
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Standard output is empty
https://ideone.com/ofR4td
language:
Scala (scala 2.12.8)
created:
9 years ago
visibility:
public

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