import java.util.*;

public class FindStringExtremes {

    public static void main (String[] argv)
    {
        // Some test data (a subset of Java's reserved words).
	String[] reservedWords = {"if", "else", "while", "do", "return", 
				  "true", "false", "instanceof", "class"};
        
        // Here, smallest means 'alphabetically first'.
	String smallest = findSmallest (reservedWords);
	String largest = findLargest (reservedWords);

        // Print.
	System.out.println ("Smallest=\"" + smallest + "\", largest=\"" + largest + "\" in array " + Arrays.toString(reservedWords));

    }


    static String findLargest (String[] words)
    {
	String largest = words[0];
	for (int i=1; i<words.length; i++) {
            // Note: compareTo() method in String returns an int.
	    if ( words[i].compareTo (largest) > 0 ) {
		largest = words[i];
	    }
	}
	return largest;
    }


    static String findSmallest (String[] words)
    {
	String smallest = words[0];
	for (int i=1; i<words.length; i++) {
	    if ( words[i].compareTo (smallest) < 0 ) {
		smallest = words[i];
	    }
	}
	return smallest;
    }

}