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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. import java.lang.reflect.InvocationTargetException;
  8. import java.util.concurrent.ThreadLocalRandom;
  9.  
  10. /* Name of the class has to be "Main" only if the class is public. */
  11. class Ideone
  12. {
  13. 	public static void main (String[] args) throws java.lang.Exception
  14. 	{
  15.         List < Class > classes = List.of( Beach.class , CandyLand.class , Forest.class , Frozen.class , Space.class );
  16.         int index = ThreadLocalRandom.current().nextInt( 0 , classes.size() ); // Half-open: origin is inclusive while the bound is exclusive.
  17.         Class < Arena > c = classes.get( index );
  18.         Arena arena = null;
  19.         try
  20.         {
  21.             arena = c.getDeclaredConstructor().newInstance();
  22.         } catch ( InstantiationException e )
  23.         {
  24.             e.printStackTrace();
  25.         } catch ( IllegalAccessException e )
  26.         {
  27.             e.printStackTrace();
  28.         } catch ( InvocationTargetException e )
  29.         {
  30.             e.printStackTrace();
  31.         } catch ( NoSuchMethodException e )
  32.         {
  33.             e.printStackTrace();
  34.         }
  35.  
  36.         System.out.println( "BASIL - Done." );
  37. 	}
  38. }
  39.  
  40. interface Arena
  41. {
  42. }
  43.  
  44. class Beach implements Arena
  45. {
  46.     public Beach ( )
  47.     {
  48.         System.out.println( "BASIL - Constructing Beach. " );
  49.     }
  50. }
  51.  
  52. class CandyLand implements Arena
  53. {
  54.     public CandyLand ( )
  55.     {
  56.         System.out.println( "BASIL - Constructing CandyLand. " );
  57.     }
  58. }
  59.  
  60.  
  61. class Forest implements Arena
  62. {
  63.     public Forest ( )
  64.     {
  65.         System.out.println( "BASIL - Constructing Forest. " );
  66.     }
  67. }
  68.  
  69. class Frozen implements Arena
  70. {
  71.     public Frozen ( )
  72.     {
  73.         System.out.println( "BASIL - Constructing Frozen. " );
  74.     }
  75. }
  76.  
  77. class Space implements Arena
  78. {
  79.     public Space ( )
  80.     {
  81.         System.out.println( "BASIL - Constructing Space. " );
  82.     }
  83. }
  84.  
  85.  
  86.  
Success #stdin #stdout 0.06s 32808KB
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BASIL - Constructing Space. 
BASIL - Done.
https://ideone.com/hMbciH
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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