Dassault Systèmes Java Developer interview questions

They came in Hyderabad for interview Process. First round was pen and paper based java mcq(no negative marking) easy questions to guess output of code, servelts, threads and to write 3 codes pascals triangles, given an array and an int. Find all sunsets of an array equal to that sum Second round was pen and paper based general intelligence and there was negative mariking. Easy to average question on guess mirror image, guess next no in series Third was pen and paper based aptitude. Average to difficult. Negative marking is there. 20 question try to solve atleast 10-13. If over all in all test u have performed good written will be clear Fourth round was f2f technical. Threads, collections, explanation of code u wrote in written test and some logical question Guess no of squares in a given 4*4 square. There are 10 children and 1 box with 10 Apples give one Apple to each child such that at last one apple is left in box

There was a written round.It comprises of Technical Aptitude, General Intelligence.I cleared the written round. And then in the interview they asked Core Java Questions which I answered to the best of my abilities.