Java tutorial
/** *Output: The value of K2 is V2. The value of K1 is V1. */ import java.util.Properties; import java.util.Set; public class MainClass { public static void main(String args[]) { Properties capitals = new Properties(); capitals.put("K1", "V1"); capitals.put("K2", "V2"); Set states = capitals.keySet(); for (Object name : states) System.out.println("The value of " + name + " is " + capitals.getProperty((String) name) + "."); } }