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  1. public class A {
  2.     public static Integer d = 3;
  3. }
  4.  
  5. public class B extends A {
  6.     public static void fun() {
  7.         System.debug(A.d);
  8.         A.d = 5;
  9.     }
  10. }
  11.  
  12. public class C extends A {
  13.     public static void fun2() {
  14.         System.debug(A.d);
  15.     }
  16. }
  17.  
  18. public class MainClass {
  19.     public static void main(String[] args) {
  20.         B.fun();
  21.         C.fun2();
  22.     }
  23. }
  24.  
Success #stdin #stdout #stderr 0.01s 8904KB
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stdin
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Standard input is empty
stdout
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Object: UndefinedObject error: did not understand #A
MessageNotUnderstood(Exception)>>signal (ExcHandling.st:254)
UndefinedObject class(Object)>>doesNotUnderstand: #A (SysExcept.st:1448)
UndefinedObject>>executeStatements (prog:1)
stderr
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./prog:3: parse error, expected identifier or binary operator or keyword
https://ideone.com/UxWZgi
language:
Smalltalk (gst 3.2.5)
created:
30 days ago
visibility:
public

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