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I applied via Monster and was interviewed before Aug 2020. There was 1 interview round.
Hashmap is unordered while LinkedHashmap maintains insertion order.
Hashmap uses hashing to store key-value pairs while LinkedHashmap uses a doubly linked list to maintain order.
Hashmap allows null values and one null key while LinkedHashmap does not allow null keys or values.
Hashmap has O(1) time complexity for basic operations while LinkedHashmap has O(1) for insertion and deletion but O(n) for iteration.
Example: Hash...
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I applied via Campus Placement and was interviewed before May 2023. There were 2 interview rounds.
Binary search algorithm efficiently finds the target value in a sorted array.
Divide array in half and compare target with middle element
If target is smaller, search left half; if larger, search right half
Repeat process until target is found or subarray is empty
One example of a design pattern is the Singleton pattern.
Singleton pattern ensures a class has only one instance and provides a global point of access to it.
It involves a static method to access the instance and a private constructor to prevent instantiation from other classes.
Example: Singleton pattern is commonly used in logging classes, database connections, and thread pools.
Hackerrank coding test
Questions on Aws services
Some mcq questions and coding question. Both where easy to medium level. Prepare combination/permutation/Time complexity etc
A question related to Binary search and some other follow ups.
I applied via Referral and was interviewed in Jan 2022. There were 2 interview rounds.
I applied via Approached by Company and was interviewed before Jun 2023. There were 2 interview rounds.
I applied via Naukri.com and was interviewed in Nov 2021. There was 1 interview round.
I applied via Walk-in
45 mins, maths
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