The isEmpty() method checks if the Dictionary is empty. In the below example, it replaces the value вЂњKavithaвЂќ with вЂњKavyaвЂќ. When there is already a key-value pair present, it replaces the value when we use the put() method. To remove a key-value pair, we use the remove() method. To get all the keys, we use the keys() method. We can iterate through the dictionary elements using the enumeration to get all the values. The get() method retrieves the value of the corresponding key which is passed as a parameter. To retrieve the size, we use the size() method. The put() method inserts the key-value pair data into the Dictionary object. To use the Dictionary class, we need to import the package. In the below example, we have used all the methods of the Dictionary class in Java. Value - value to be associated with the key Object remove(Object key) Removes the key and its value from the dictionary key - the key to be retrieved int size() Returns the number of distinct keys in the dictionary Example of Java Dictionary methods Returns true if there are no key-value pairs Enumeration keys() Returns an enumeration of keys in the dictionary Object put(Object key, Object value) Maps a specific key to a value in the dictionary key - hashtable key The below diagram shows the key-value pair association.Д«elow are the methods present in the Dictionary class in Java: Method Description Parameter Enumeration elements() Returns an enumeration of values in the dictionary Object get(Object key) Returns the value associated with the specified key in the dictionary key - the key to be searched to retrieve the corresponding value boolean isEmpty() Checks whether the dictionary has no key-value pairs Returns false if there is key-value pair

Type вЂ“ represents the type of key and valueД®very key has a corresponding value and both the key and value cannot have null values. To initialize a dictionary object, we can use either a Hashtable, HashMap or LinkedHashMap.

We can declare a dictionary object in Java in the below way: public abstract class Dictionary extends Object Initializing a Dictionary object Conclusion Declaration of a Dictionary class.

Hasmap of all words in dictionary java