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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. 		Sorter<Integer> idSorter = new Sorter<>(new idComparator());
  13. 	}
  14.  
  15. 	static class Sorter<T extends Comparable> {
  16.  
  17.         Comparator<T> comparator;
  18.         int switches = 0,
  19.             compares = 0;
  20.  
  21.         public Sorter(Comparator<T> comparator) {
  22.             this.comparator = comparator;
  23.         }
  24.  
  25.         public Sorter() {
  26.             this.comparator = null;
  27.         }
  28.  
  29.         protected int compare(T first, T second) {
  30.             if (this.comparator == null) {
  31.                 int cmp = first.compareTo(second);
  32.                 this.compares++;
  33.                 return cmp;
  34.             }
  35.             // return was missing
  36.             return 0;
  37.         }
  38. 	}
  39.  
  40. 	static class idComparator implements Comparator<Integer> {
  41.  
  42.         public int compare(Integer first, Integer second) {
  43.             return first > second? 1: first == second? 0: 1;
  44.         }
  45.     }
  46.  
  47.     static class Person {}
  48. }
Success #stdin #stdout 0.1s 320512KB
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https://ideone.com/fdErpt
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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