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I applied via Naukri.com and was interviewed before Apr 2021. There were 2 interview rounds.
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Java hash map is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values based on keys.
HashMap in Java implements the Map interface and allows null keys and values.
It uses hashing to store and retrieve key-value pairs, providing O(1) time complexity for get() and put() operations.
Example: HashMap<String, Integer> map = new HashMap<>(); map.put("key", 1); int value = map.
It was medium level question
I applied via Recruitment Consulltant and was interviewed in Nov 2021. There were 4 interview rounds.
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Desktop Support Engineer
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| ₹1 L/yr - ₹4.5 L/yr |
Technical Support Engineer
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| ₹1.5 L/yr - ₹4.9 L/yr |
Desktop Support Engineer L2
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| ₹1.6 L/yr - ₹4.3 L/yr |
System Administrator
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| ₹1.7 L/yr - ₹8.5 L/yr |
L2 Technical Support Engineer
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| ₹2.2 L/yr - ₹4.5 L/yr |
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