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  1. enum Days {
  2.   MON, TUE, WED, THU, FRI, SAT, SUN;
  3.  
  4.   public static Days[] weekdays;
  5.   public static Days[] weekend;
  6.   public static Days[] all;
  7.  
  8.   Days() {
  9.     weekdays = new Days[] {MON, TUE, WED, THU, FRI};
  10.     weekend = new Days[] {SAT, SUN};
  11.     all = new Days[] {MON, TUE, WED, THU, FRI, SAT, SUN};
  12.   }
  13.  
  14.   public static void main(String[] args) {}
  15. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:9: error: illegal reference to static field from initializer
    weekdays = new Days[] {MON, TUE, WED, THU, FRI};
    ^
Main.java:9: error: illegal reference to static field from initializer
    weekdays = new Days[] {MON, TUE, WED, THU, FRI};
                           ^
Main.java:9: error: illegal reference to static field from initializer
    weekdays = new Days[] {MON, TUE, WED, THU, FRI};
                                ^
Main.java:9: error: illegal reference to static field from initializer
    weekdays = new Days[] {MON, TUE, WED, THU, FRI};
                                     ^
Main.java:9: error: illegal reference to static field from initializer
    weekdays = new Days[] {MON, TUE, WED, THU, FRI};
                                          ^
Main.java:9: error: illegal reference to static field from initializer
    weekdays = new Days[] {MON, TUE, WED, THU, FRI};
                                               ^
Main.java:10: error: illegal reference to static field from initializer
    weekend = new Days[] {SAT, SUN};
    ^
Main.java:10: error: illegal reference to static field from initializer
    weekend = new Days[] {SAT, SUN};
                          ^
Main.java:10: error: illegal reference to static field from initializer
    weekend = new Days[] {SAT, SUN};
                               ^
Main.java:11: error: illegal reference to static field from initializer
    all = new Days[] {MON, TUE, WED, THU, FRI, SAT, SUN};
    ^
Main.java:11: error: illegal reference to static field from initializer
    all = new Days[] {MON, TUE, WED, THU, FRI, SAT, SUN};
                      ^
Main.java:11: error: illegal reference to static field from initializer
    all = new Days[] {MON, TUE, WED, THU, FRI, SAT, SUN};
                           ^
Main.java:11: error: illegal reference to static field from initializer
    all = new Days[] {MON, TUE, WED, THU, FRI, SAT, SUN};
                                ^
Main.java:11: error: illegal reference to static field from initializer
    all = new Days[] {MON, TUE, WED, THU, FRI, SAT, SUN};
                                     ^
Main.java:11: error: illegal reference to static field from initializer
    all = new Days[] {MON, TUE, WED, THU, FRI, SAT, SUN};
                                          ^
Main.java:11: error: illegal reference to static field from initializer
    all = new Days[] {MON, TUE, WED, THU, FRI, SAT, SUN};
                                               ^
Main.java:11: error: illegal reference to static field from initializer
    all = new Days[] {MON, TUE, WED, THU, FRI, SAT, SUN};
                                                    ^
17 errors
stdout
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Standard output is empty
https://ideone.com/nRyo27
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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