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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. public static void main (String[] args) throws java.lang.Exception
  11. {
  12. Map<Integer, String> langMap = new HashMap<>();
  13. langMap.put(1, "Java");
  14. langMap.put(2, "C#");
  15. var values = langMap.values();
  16.  
  17. System.out.println( "langMap.toString(): " + langMap ) ;
  18. System.out.println( "values.toString(): " + values ) ;
  19. }
  20. }
Success #stdin #stdout 0.15s 36124KB
stdin
Standard input is empty
stdout
langMap.toString(): {1=Java, 2=C#}
values.toString(): [Java, C#]