//
// Example of using some Map classes.
//
// Usage:
//	java TryMap s1 s2 ...
//	where s1, s2, etc., are one or more strings.
//
// Description:
//	Builds both a HashMap and a TreeMap, using s1, s2, etc. as
//	keys and made-up strings as values; displays values for keys
//	"a" and "b" if found.
//
// Example of use:
//	java TryMap abcd a b xyzw abcd xyzw
//	(note behavior with duplicates; contrast with TryList and TrySet)
//

import java.util.*;

public
class TryMap {

        public static void 
        main(String[] args) {
		Map m1 = new HashMap();
		SortedMap m2 = new TreeMap();
		for (int i = 0; i < args.length; ++i) {
			m1.put(args[i], "--" + args[i] + "--");
			m2.put(args[i], "!!" + args[i] + "!!");
		}
		System.out.println("m1 has " + m1.size() + " entries");
		System.out.println("m2 has " + m2.size() + " entries");
		if (m1.containsKey("a"))
			System.out.println("value for key a in m1 = " +
				m1.get("a"));
		else
			System.out.println("m1 has no value for key a");
		if (m2.containsKey("b"))
			System.out.println("value for key b in m2 = " +
				m2.get("b"));
		else
			System.out.println("m2 has no value for key b");
        }
}