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  1. object Main extends App {
  2.   class IntImprovement {
  3.   	var int = 0;
  4.   	def this(j: Int) = {this(); int = j;}
  5.   	def i() = int;
  6.   	def i=(j: Int) = {int = j;}
  7.     def ++() = this.i=(i+1);
  8.     def --() = i-=1;
  9.     def +=(j: Int) = {i = i+j;}
  10.     def -=(j: Int) = i=i-j;
  11.     def *=(j: Int) = i=i*j;
  12.     def /=(j: Int) = i=i/j;
  13.     def %=(j: Int) = i=i%j;
  14.   }
  15.   //Turns all Ints into IntImprovements
  16.   implicit def int2Improve(i: Int) = new IntImprovement(i);
  17.   //and back
  18.   implicit def improve2Int(i: IntImprovement) = i.i;
  19.  
  20.   override def main(args: Array[String]) {
  21.   	var x = 5;
  22.   	x++;
  23.   	println(x);
  24.   }
  25.  
  26. }
Compilation error #stdin compilation error #stdout 0.39s 382016KB
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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:6: error: ';' expected but '=' found.
  	def i=(j: Int) = {int = j;}
                       ^
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
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Standard output is empty
https://ideone.com/pj15H7
language:
Scala (scala 2.12.8)
created:
10 years ago
visibility:
public

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