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Junior Java Developer Interview Questions

"Junior developers are often responsible for writing the more monotonous and simple code required by senior members of the development team. Because of this, interviews will be designed to test your knowledge of the fundamentals of Java so be prepared to answer technical questions that you likely came across in college. Data structures and algorithms will be heavily emphasised. A bachelor's degree or equivalent work experience is required. "

3,801 junior java developer interview questions shared by candidates

------------------------------- ->HashMap is implementation of Map interface ->Here we can store key value pairs ->When we use put method to set data to hashmap * Internally get the hashcode of key. * And based on the hashing algaritham it will find out the bucket location ->the defualt bucket size is 16. ->The same process will happened for get The data from hashmap ** There is chanse of getting same hashcode for multiple objects. this we called it has collission in this case intenal of bucket it will create linkedList and assinged. -->In java 1.8 hashmap performance improved As we know LinkedList permermance is low for the searching the data. if mutiple collision occures in the map. in this time hashmap performance also

Junior Java Developer

Interviewed at infinitrac

1★
Mar 3, 2022

------------------------------- ->HashMap is implementation of Map interface ->Here we can store key value pairs ->When we use put method to set data to hashmap * Internally get the hashcode of key. * And based on the hashing algaritham it will find out the bucket location ->the defualt bucket size is 16. ->The same process will happened for get The data from hashmap ** There is chanse of getting same hashcode for multiple objects. this we called it has collission in this case intenal of bucket it will create linkedList and assinged. -->In java 1.8 hashmap performance improved As we know LinkedList permermance is low for the searching the data. if mutiple collision occures in the map. in this time hashmap performance also

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