Software Engineer

What is bytecode in java? Use of it?
What is JVM?
Can we install multiple JVMs on one system? If yes, then what will be the benefit then?
What are Iterators in Java?

You are given ‘N’ words of various lengths, now you have to arrange these words in such a way that each line contains at most ‘M’ characters and each word is separated by a space character. The cost of each line is equal to the cube of extra space characters required to complete ‘M’ characters in that particular line. Total cost is equal to the sum of costs of each line.

Your task is to form this arrangement with the minimum cost possible and return the minimum total cost.

Note:

The length of each word should be less than or equal to ‘M’.

You can’t break a word, i.e. the entire word should come in the same line and it must not be the case that a part of it comes in the first line and another part on the next line.

Display name of department, and count of students in each department from table department and student.

In UI design, I have to organize and maintain transitions in pages using react js. First page was the login page, the second was the home page with 2 links, and links associated with one page each.

Given an integer number ‘num’. Your task is to convert ‘num’ into a word.

Suppose the given number ‘num’ is ‘9823’ then you have to return a string “nine thousand eight hundred twenty three” that is word conversion of the given ‘num’ 9823.

Difference between Method Overloading and Method Overriding.
What is Inheritance?
Output prediction (Multilevel Inheritance)

Find the topper student name and his dept name from each department from the university database. 
(Table given: Student[id, name, dept_id, score], Department[dept_id, dept_name])

Tell me about yourself
From which city you belong to?

What are your tech interests?
Followed by OOPs concepts

Difference between Aggregation and Composition?
What is Joins and types of joins?
Cartesian product and real world example?