How to Sort a String array in Android.

How to Sort a String array in Android.

Hello all….
This is a simple example showing how to sort a string array which is a arraylist in android.

we sort the array using the “Collections” class in android.

Here is a simple example

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Drag and copy the code

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package com.coderzheaven.pack;   import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Comparator; import android.app.Activity; import android.os.Bundle;   public class SortingStringsDemo extends Activity {       @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);           ArrayList<String> my_array = new ArrayList<String>();             //Add elements to Arraylist           my_array.add("CoderzHeaven");           my_array.add("Google");           my_array.add("Android");           my_array.add("apple");           my_array.add("android");           my_array.add("Microsoft");           my_array.add("Samsung");             //sorting function           Collections.sort(my_array);             //display elements of ArrayList           System.out.println("ArrayList elements after sorting in ascending order : ");           System.out.println(Arrays.toString(my_array.toArray()));             System.out.println("ArrayList elements Comparing - ignorecase");           IgnoreCaseComparator icc = new IgnoreCaseComparator();           java.util.Collections.sort(my_array,icc);           Collections.sort(my_array);           System.out.println(Arrays.toString(my_array.toArray()));             System.out.println("Reversing the ArrayList");           Collections.sort(my_array, Collections.reverseOrder());           System.out.println(Arrays.toString(my_array.toArray()));     }       class IgnoreCaseComparator implements Comparator<String> {       public int compare(String strA, String strB) {         return strA.compareToIgnoreCase(strB);       }     } }

Take a look at the LogCat for the output.