1  import java.util.ArrayList;

  2  import java.util.Arrays;

  3  import java.util.Collections;

  4  

  5  /**

  6     This program demonstrates Java library methods for sorting and

  7     searching.

  8  */

  9  public class JavaLibraryDemo

 10  {

 11     public static void main(String[] args)

 12     {

 13        int[] values = { 1, 4, 9, 1, 6, 2, 5, 3, 6, 4, 9, 6, 4, 8, 1 };

 14        Arrays.sort(values);

 15        System.out.println(Arrays.toString(values));

 16        int pos = Arrays.binarySearch(values, 4);

 17        System.out.println("Position of 4: " + pos);

 18        pos = Arrays.binarySearch(values, 7);

 19        System.out.println("Position for inserting 7: " + (-pos - 1));

 20  

 21        Country country1 = new Country("Belgium", 30510);

 22        Country country2 = new Country("Thailand", 514000);

 23        Country country3 = new Country("Uruguay", 176220);

 24  

 25        ArrayList<Country> countries = new ArrayList<Country>();

 26        countries.add(country1);

 27        countries.add(country2);

 28        countries.add(country3);

 29  

 30        Collections.sort(countries);

 31        System.out.println(countries);

 32     }

 33  }