What is HashMap in Java | Ways to iterate it | HashMap put method with key and value
in this video You will learn the brief introduction of what is hashmap and which is the part of Collection. There are different ways of iterating the Hash Map. Actually hashmap is used to store the elements in the form of Key Value pair. After Java 5 version Generics are used to put the Entity Type as Key and Value. Entity type can be Object, Integer, String, Class, Double, etc.
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1. Hashmap collection introduction in CoreJava
2. Map interface introduction
3. How to iterate hashmap
4. Iterating HashMap collection using forEach method in Java 8, Iterator method with Entry Set keys and values.
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