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Java HashMap clear()
remove all elements from HashMap
Java HashMap clone()
makes the copy of the hashmap
Java HashMap isEmpty()
checks if the HashMap is empty
Java HashMap size()
returns the number of items in HashMap
Java HashMap put()
inserts the specified item to the hashmap
Java HashMap putAll()
inserts all items from a map to HashMap
Java HashMap putIfAbsent()
inserts item if the key is not already present
Java HashMap remove()
removes the mapping for the specified key
Java HashMap containsKey()
checks if the specified key is present in HashMap
Java HashMap containsValue()
checks if HashMap contains the specified value
Java HashMap replace()
replaces the value for the specified key
Java HashMap replaceAll()
replaces all values with
Java HashMap get()
returns the value using the specified key
Java HashMap getOrDefault()
returns specified default value if key not found
Java HashMap forEach()
performs the action to all entries of HashMap
Java HashMap entrySet()
returns a set view of all entries
Java HashMap keySet()
returns a set view of all the keys of HashMap
Java HashMap values()
returns a view of all values present in HashMap
Java HashMap merge()
merges the specified mapping to the HashMaps
Java HashMap compute()
computes a new value for the specified key
Java HashMap computeIfAbsent()
computes value if mapping for key is not present
Java HashMap computeIfPresent()
computes a value for the mapping if key is present