Java Interview Shorts 3 - What is an Entry object ? || Java collections #javainterviewquestions

Java Interview Shorts 3 - What is an Entry object ? Java collections framework interview questions

In this video we will learn about Entry object in java. Entry is a nested interface present inside a java Map interface. Inside a map , we store key and value pair but we don’t store them directly. We store entry object inside a map (like Hashmap or treemap) which is a wrapper for the key and value objects.

The entry object can be accessed using Map.Entry as it is a nested interface.To access all the entries of a map objects use the entrySet() method and then use the getKey and getValue methods to access a specific entry’s key and value.

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[abhishekverma]

Please keep it up, very useful for freshers

[ashishsharma]

Your explanation is really really helpful to understand complex concept as well, straight forward explanation without any confusion. Thank you

[dolonroy-ce]

Very nice.. Please keep like this Avilash 🙏

[jayakumarsivasankar]

Great explanation..
One question that I faced during the interview was how to iterate a Map using Stream Api.
I mentioned using EntrySet collection and then converting it to stream..
I'm not sure if we have a better solution.

[HR-pzts]

I remember Entry and entrySet from for each loop to iterate over map

[franchello]

My question is why is the entryset better than iterating over the Keyset and then grabbing the values that way?

[ashutoshsingh-uhio]

Nice explanation. But how can we create an object of an interface. So is it wrong to say entry as an object ?