ZSorter.java

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package org.feistymeow.example;
 
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
 
public class ZSorter<T extends Comparable<? super T>> {
 
  public List<T> sort(List<T> toSort) {
    List<T> toReturn = new ArrayList<T>(toSort);
    Collections.copy(toReturn, toSort);
    Collections.sort(toReturn);
    return toReturn;
  }
 
  public void print(List<T> toPrint) {
    boolean first = true;
    for (T curr: toPrint) {
      if (!first) System.out.print(", ");
      first = false;
      System.out.print(curr);
    }
    System.out.println();
  }
  
  public static void main(String[] args) {
    ZSorter<Integer> sorter = new ZSorter<Integer>();
    
    List<Integer> theList
      = new ArrayList<Integer>(Arrays.asList(101, 19, 86, 72, 56, 35, 47));
    System.out.println("prior to sorting:");
    sorter.print(theList);
 
    // test our sort method.
    List<Integer> newList = sorter.sort(theList);
    System.out.println("after sorting:");
    sorter.print(newList);
  }
}