HashMap vs HashTable
HashMap vs HashTable HashMapHashTableNot synchronizedSynchronizedAllows one null key and many null valuesDoesn't allow null valuesNo orderLinkedHashMap - Insertion orderTreeMap - order by keysNo orderNo duplicatesNo duplicat...
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June 27, 2021 Ravi Yasas
HashMap vs HashTable HashMapHashTableNot synchronizedSynchronizedAllows one null key and many null valuesDoesn't allow null valuesNo orderLinkedHashMap - Insertion orderTreeMap - order by keysNo orderNo duplicatesNo duplicat...
@OneToOne The best approach to bidirectional @OneToOne is to use @MapsId Student entity @Entity @Data @Table(name = "students") pu...