Esempio n. 1
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 // Producing a Collection of the values:
 public static void printValues(Map m) {
   System.out.print("Values: ");
   Collection1.print(m.values());
 }
Esempio n. 2
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 // Producing a Set of the keys:
 public static void printKeys(Map m) {
   System.out.print("Size = " + m.size() + ", ");
   System.out.print("keys: ");
   Collection1.print(m.keySet());
 }