iASYS Java Software Developer interview questions

I Interviewed through college campus in February 2022. There are 3 rounds first round: Aptitude round second round: Technical Interview:1)what do you mean by object oriented programming language? 2)what is the difference between Abstarct class and Interface? 3)What encapsulation??Explain with one real time example. 4)What is Super Keyword in java? 5)What is split() method in java? 6)Write a java program to reverse a string(Ex.I/n: This is a Example. O/p:Example a is This) third round: HR Interview