What are the test cases you can guess for a lift installed in a building?

-> Tell me about yourself. -> rate yourself in java -> questions based on OOPS concepts like abstraction, constructors, data hiding, ever used these concepts? -> array vs array-list coding questions: -> given a string, replace 'a' with * and print its index. Input -> apple banana Output-> 0*pple 135b*n*n* -> given an array of unique integers, print index of all pair that equal to the target sum. Input -> 8,2,1,4,5,6,9,7 target = 10 output -> 0 1 2 6 3 5 -> given input and output, define the logic behind output and code it. Input -> a,e,!,#,r,y,^,u,*,k output -> k,u,!,#,y,r,^,e,*,a Puzzle -> there are 3 bottles, 2 of them contain poison and one contain milk. a scientist has 20 days to find out which bottle contain milk and a rat to experiment that dies in 10 days after consuming poison (gfg rat poison puzzle)

Detailed discussion about projects , Java theory ,oops , coding . Also lots of logical puzzle were asked.