Question

The accuracy and efficiency of a hashmap can be guaranteed with:

Answer 1

The accuracy and efficiency of a HashMap can be guaranteed with override hashCode method.

Maps are used in Java to associate a key with a value when Lists are an ordered collection. HashMap is one implementation of the Map interface in the Java Collection Framework. It contains values based on the key. It has only unique elements. It might have a null key and multiple null values.

Answer 2

A HashMap is used in Java language. The accuracy and efficiency of a HashMap can be guaranteed with override equals method and override hashCode method.

A HashMap supports null values and keys, which makes it ideal for single-threaded environments. Moreover, a HashMap allows a Java application to iterate over its set of keys. The hashCode method helps in finding the index of the key-value pair. It also helps in detecting duplicates and the storage location of the specified key.