Round 1:

• Print Longest Increasing subsequence.
• Tell minimum no. of ways to get number to guess 4 digit lock value correctly, starting from 0,0,0,0
• What is difference between @Component, @service, @repository ?
• What are functional interface ?
• When to use abstract class vs interface ?
• What can go wrong when multiple threads are accessing hashmap ?
• What is the use of beans in spring boot ?

Round 2:

• Print in numbers
  6:00 six o'clock
  6:10 ten minutes past six
  6:15 quarter past six
  6:30 half past six
  6:45 quarter to seven
  6:47 thirteen minutes to seven
  6:14: fourteen minutes past six
• Print max element of stack.
• What is difference between hashset, linkedHashset, treeset ?
• What happens when equals method always return true, hashcode method return random value? If HashSet contains different instance of this class, then behaviour will be different for size of hashset.
• What is singleton pattern?
• Difference between arrays and arraylist.

Compensation details: https://leetcode.com/discuss/compensation/4621559/Caizin-or-Senior-Software-Engineer-or-35-LPA-or-January-2024