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  1. abstract class A {
  2. 	def foo(): Unit
  3. }
  4.  
  5. class B extends A
  6.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
compilation info 
/opt/scala/bin/scalac: line 50: /dev/null: Permission denied
Main.scala:5: error: class B needs to be abstract, since method foo in class A of type ()Unit is not defined
class B extends A
      ^
one error found
spoj: The program compiled successfully, but Main.class was not found.
      Class Main should contain method: def main(args: Array[String]).
stdout 
Standard output is empty
https://ideone.com/gYFE6e
language:
Scala (scala 2.12.8)
created:
10 years ago
visibility:
public

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