1  import java.math.*;
  2  
  3  public class SortComparableObjects {
  4    public static void main(String[] args) {
  5      String[] cities = {"Savannah", "Boston", "Atlanta", "Tampa"};
  6      java.util.Arrays.sort(cities);
  7      for (String city: cities)
  8        System.out.print(city + " "); 
  9      System.out.println();
 10      
 11      BigInteger[] hugeNumbers = {new BigInteger("2323231092923992"),
 12         new BigInteger("432232323239292"), 
 13         new BigInteger("54623239292")};    
 14      java.util.Arrays.sort(hugeNumbers);
 15      for (BigInteger number: hugeNumbers)
 16        System.out.print(number + " "); 
 17    }
 18  }