Sunday, March 4, 2012

How do I sort strings using Collator class in java?


In this example we demonstrate how to use the java.text.Collator class to sort strings in language-specific order. Using the java.text.Collator class makes the string not just sorted by the ASCII code of their characters but it will follow the language natural order of the characters.

import java.util.List;
import java.util.ArrayList;
import java.util.Locale;
import java.util.Collections;
import java.text.Collator;

public class StringShortWithCollator {
    public static void main(String[] args) {
        List<String> fruits = new ArrayList<String>();
        fruits.add("Guava");
        fruits.add("Banana");
        fruits.add("Orange");
        fruits.add("Mango");
        fruits.add("Apple");

        //
        // Define a collator for US English.
        //
        Collator collator = Collator.getInstance(Locale.US);
        
        //
        // Sort the list base on the collator
        //
        Collections.sort(fruits, collator);

        for (int i = 0; i < fruits.size(); i++) {
            String fruit = fruits.get(i);

            System.out.println("Fruit = " + fruit);
        }
    }
}

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