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  1. import java.util.Arrays;
  2. import java.util.Collections;
  3. import java.util.Comparator;
  4. import java.util.List;
  5.  
  6. class Item {
  7.     private String name;
  8.  
  9.     public Item() {
  10.         super();
  11.     }
  12.  
  13.     public Item(final String name) {
  14.         super();
  15.         this.name = name;
  16.     }
  17.  
  18.     public String getName() {
  19.         return name;
  20.     }
  21.  
  22.     public void setName(String name) {
  23.         this.name = name;
  24.     }
  25.  
  26.     @Override
  27.     public String toString() {
  28.         return String.format("Item[name=%s]", getName());
  29.     }
  30. }
  31.  
  32. class ItemTest {
  33.     public static void main(final String[] args) {
  34.         try {
  35.             testSortItemArrByNameExcludingThe();
  36.             testSortItemListByNameExcludingThe();
  37.         } catch (final Exception e) {
  38.             e.printStackTrace();
  39.         }
  40.     }
  41.  
  42.     public static void testSortItemArrByNameExcludingThe() throws Exception {
  43.         final Item[] itemArr = new Item[] { new Item("The Abacus"),
  44.                 new Item("The Killing of Molly Brown"),
  45.                 new Item("The What and The Who"),
  46.                 new Item("The Fighting Temptations"),
  47.                 new Item("Doctor Seusses Cat in the Hat") };
  48.  
  49.         Arrays.sort(itemArr, new Comparator<Item>() {
  50.             public int compare(Item a, Item b) {
  51.                 String newA = a.getName().replaceAll("(?i)^the\\s+", "");
  52.                 String newB = b.getName().replaceAll("(?i)^the\\s+", "");
  53.                 return newA.compareToIgnoreCase(newB);
  54.             }
  55.         });
  56.  
  57.         System.out.println("Array Sort:" + Arrays.toString(itemArr));
  58.     }
  59.  
  60.     public static void testSortItemListByNameExcludingThe() throws Exception {
  61.         final Item[] itemArr = new Item[] { new Item("The Abacus"),
  62.                 new Item("The Killing of Molly Brown"),
  63.                 new Item("The What and The Who"),
  64.                 new Item("The Fighting Temptations"),
  65.                 new Item("Doctor Seusses Cat in the Hat") };
  66.  
  67.         final List<Item> itemList = Arrays.asList(itemArr);
  68.         Collections.sort(itemList, new Comparator<Item>() {
  69.             public int compare(Item a, Item b) {
  70.                 String newA = a.getName().replaceAll("(?i)^the\\s+", "");
  71.                 String newB = b.getName().replaceAll("(?i)^the\\s+", "");
  72.                 return newA.compareToIgnoreCase(newB);
  73.             }
  74.         });
  75.  
  76.         System.out.println("Lists Sort:" + itemList);
  77.     }
  78. }
Success #stdin #stdout 0.08s 380224KB
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Array Sort:[Item[name=The Abacus], Item[name=Doctor Seusses Cat in the Hat], Item[name=The Fighting Temptations], Item[name=The Killing of Molly Brown], Item[name=The What and The Who]]
Lists Sort:[Item[name=The Abacus], Item[name=Doctor Seusses Cat in the Hat], Item[name=The Fighting Temptations], Item[name=The Killing of Molly Brown], Item[name=The What and The Who]]
https://ideone.com/RkkBVI
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
public

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