Keep upper and lowercase letters together : Comparator « Collections Data Structure « Java

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Java » Collections Data Structure » Comparator 




Keep upper and lowercase letters together
Keep upper and lowercase letters together
    
// : c11:AlphabeticSorting.java
//Keep upper and lowercase letters together.
//From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
//www.BruceEckel.com. See copyright notice in CopyRight.txt.

import java.util.Arrays;
import java.util.Comparator;

public class AlphabeticSorting {
  public static void main(String[] args) {
    String[] sa = new String[] { "a""c""b" };

    System.out.println("Before sorting: " + Arrays.asList(sa));
    Arrays.sort(sa, new AlphabeticComparator());
    System.out.println("After sorting: " + Arrays.asList(sa));
  }
///:~

class AlphabeticComparator implements Comparator {
  public int compare(Object o1, Object o2) {
    String s1 = (Stringo1;
    String s2 = (Stringo2;
    return s1.toLowerCase().compareTo(s2.toLowerCase());
  }
///:~



           
         
    
    
    
  














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13.Comparator uses a Collator to determine the proper, case-insensitive lexicographical ordering of two strings.
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17.Comparator similar to String.CASE_INSENSITIVE_ORDER, but handles only ASCII characters
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21.Invertible Comparator
22.This program animates a sort algorithm
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