Oracle Interview Experience | Set 37 (Application Developer )

Last Updated : 07 Apr, 2025

Oracle Ltd. recently visited our campus for the role of the application developer. There were a total of 5 rounds (online test+3 tech interviews+ hr interview). Online test was conducted on their own platform . It had 4 sections:- -verbal -

aptitude

-programming skills (flowcharts etc..) -

computer science concepts

(DBMS , OS , questions on trees ) The level of the questions was above average. Out of around 70 students, 40 were shortlisted for the personal interviews. 1.Technical Interview(F2F):-

What if the difference between class and structure ?
Why use class when we have structure?
What are the differences between c and java?
What is the feature that makes java platform independent?
Detailed description(steps) of how a java code is converted into machine code.
3 coding questions (complete code was expected) There are a sequence of words and the limit on the number of charachters that can be put in a line is given as 80. write code in a such a way that the given sequence of words is properly partitioned (after 80 characters in a line, a new line has to be started ) condition:- no word has to be split (partial placing of a single word in 2 adjacent lines is not allowed). Example:- if the sequence is "hi iam abc iam from xyz" and the limit=7, then the output should be:- hi iam (7 characters last character is space) abc iam(7 characters) from (had to split xyz entirely to the next line because "from xyz" crosses the limit 7 xyz. - Modified Minimum cost path in a matrix (dynamic programming question).There is a matrix with positive and negative integers and few cells with "X" characters through which the path cannot be taken. *Code to find the minimum cost from (0,0) to (m,n). *Code for the actual path from (0,0) to (m,n) through which the cost is minimized (the optimized solution was expected). -There are a sequence of characters like "ABBAAADDEEBBD" *sort them on the order of occurrences, maintaining their order in the given string. output :- AAAABBBBDDDEE
Questions on internship project.

2.Technical Interview(F2F):-

How much would you rate yourself in coding?
1 coding question (complete code expected) There is a bus stop where people have to form a queue. People forming the queue are numbered in the increasing order and are labeled with a character "E" or "B" where E says the person to stand at the end in the queue and B says that he should go to the beginning. If in the queue any person with bigger number stands in front of any person having a smaller number then the person with a smaller number raises an "unsatisfactory count". For an input, string count all such unsatisfactory counts of all the persons. Example:- input string "BEEB". output: -1110, because 4th person has got the label 'B' so he stands in front of all the first 3 persons... so all the 3 persons raise a count for the 4th person standing in front of them.
1 Database question There is a car showroom which sells or rents cars of different models. A particular car model may have many number of cars (like there can be 20 Maruti alto cars). A customer can buy a car or take it for rent if he buys a car then the total number of cars of that model has to be decremented by 1 but if a car is taken for rent the number should not be decremented. *Interviewer:- Now, considering all the cases and conditions design a database for the system ( he intentionally did not mention any ) **so I had shown 3 tables with all possible columns, an E-R diagram for the system, a sample J2EE servlet code and few possible SQL queries)

3.Technical interview(F2F):-

Write a recursive function for finding factorial ( all base cases were expected ) (this question was asked just to test my speed )
Why is your cgpa decreasing ?
What is your favourite subject? to which i replies mathematics
If you have 5 0's and can choose any mathematical operator ... get 120 out of those 0's
Discussed about work at oracle in detail.
Questions on internship project.

4.HR interview(F2F):