Interview Experience with Spire Technologies

I had interview with spire technologies (http://www.spire2grow.com) for Software Engineer position.

Round 1:
Some Programming Questions were asked, write code for each.
1. SQL: Find Average salary of male employees, whose salary is greater than Female Employees.
2. First Non Repeated Character (With Less time Complexity)
3. Create 2 threads, one print even number other is odd number
4. Anagram Program

Round 2: (Technical Member)
This Round Questions were asked on data Structure.
1. Hash map vs Tree Map (Time Complexity)
2. Hash Code and Equals method importance
3. Questions were asked about written test.

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