Remove From Hashmap Java

// put elements to the map hm.put (bag, new integer (1100)); Hashmap hm = new hashmap (); If the key is not already present, remove () returns null.

To remove a key from hashmap, use the remove () method. Remove () method is available in java.util package. // put elements to the map hm.put (bag, new integer (1100));

The method takes one parameter key whose mapping is to be removed from the map.

Hashmap stores entries in (key, value) pairs with unique keys. Hm.put (wallet, new integer (700)); Hashmap hm = new hashmap (); Hm.put (frames, new integer (800));