Write a program to using hash map to store employee based on age in descending order.
Java Senior Interview Questions
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What is generics in java8, explain.
Advantages and disadvantages of micro services
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design pattern, basic java, spring java 8, multithreading etc
how to reverse a link list
difference between lock and synchronisation
object level lock vs class level lock
parallel gc vs concurrent gc
How many columns in a database can have indexed? Can we have indexes on every column in a table? Any pros/cons?
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