kona/src/org/feistymeow/example/ZSorter.java

   1 package org.feistymeow.example;
   2
   3 import java.util.ArrayList;
   4 import java.util.Arrays;
   5 import java.util.Collections;
   6 import java.util.List;
   7
   8 public class ZSorter<T extends Comparable<? super T>> {
   9
  10         /**
  11          * returns a new list which is the sorted version of the input
  12          * list "toSort".
  13          */
  14         public List<T> sort(List<T> toSort) {
  15                 List<T> toReturn = new ArrayList<T>(toSort);
  16                 Collections.copy(toReturn, toSort);
  17                 Collections.sort(toReturn);
  18                 return toReturn;
  19         }
  20
  21         /**
  22          * simple console printer for list of T.
  23          */
  24         public void print(List<T> toPrint) {
  25                 boolean first = true;
  26                 for (T curr: toPrint) {
  27                         if (!first) System.out.print(", ");
  28                         first = false;
  29                         System.out.print(curr);
  30                 }
  31                 System.out.println();
  32         }
  33
  34         public static void main(String[] args) {
  35                 ZSorter<Integer> sorter = new ZSorter<Integer>();
  36
  37                 List<Integer> theList
  38                         = new ArrayList<Integer>(Arrays.asList(101, 19, 86, 72, 56, 35, 47));
  39                 System.out.println("prior to sorting:");
  40                 sorter.print(theList);
  41
  42                 // test our sort method.
  43                 List<Integer> newList = sorter.sort(theList);
  44                 System.out.println("after sorting:");
  45                 sorter.print(newList);
  46         }
  47 }