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Oakland Systems
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Oakland Systems Java Developer Intern Interview Questions and Answers
Oakland Systems Java Developer Intern Interview Experiences
1 interview found
Selected
I applied via LinkedIn and was interviewed before Oct 2022. There were 4 interview rounds.
Logical and Mathematical Aptitude test. They give priority to them with higher Aptitude score. I must tell u its very hard.
Assignment relared to Java.
Run the assignment in their own system.
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Prime Focus Technologies
Anonymous
posted on 29 Apr 2024
Selected
I applied via Website and was interviewed before Apr 2023. There were 3 interview rounds.
(1 Question)
- Q1. What you do? Description with analysis
- Ans.
I am a Java Developer responsible for designing, developing, and maintaining Java applications.
Design and develop Java applications
Write clean, efficient, and maintainable code
Collaborate with team members to troubleshoot and solve technical issues
(1 Question)
- Q1. Java,sql,python
(1 Question)
- Q1. What is your goal
Selected
I appeared for an interview before Sep 2023.
Code was of leetcode medium level.
(2 Questions)
- Q1. Easy level DS code
- Q2. Question related to database
(3 Questions)
- Q1. Questions related to SQL
- Q2. Inner join of three tables
- Ans.
Inner join of three tables in SQL
Use the JOIN keyword to combine three tables based on a common column
Specify the columns to select from each table
Use the ON keyword to specify the join condition
- Q3. What is cross join
- Ans.
Cross join is a type of join operation in SQL that returns the Cartesian product of two tables.
Cross join does not require any matching condition between the tables.
It combines each row from the first table with every row from the second table.
Cross join can result in a large number of rows if the tables are big.
Example: SELECT * FROM table1 CROSS JOIN table2;
Skills evaluated in this interview
I applied via Campus Placement and was interviewed before Jul 2021. There were 3 interview rounds.
General aptitude test with math and logic related questions. there were also coding questions which were given more weightage than the other questions.
(2 Questions)
- Q1. Standard linked list questions like finding the middle of a linked list, checking if the linked list is a loop etc
- Q2. Max heap related questions.
(1 Question)
- Q1. This interview was mostly math related questions. for eg: prove if a number is irrational.
Interview Preparation Tips
- Data Structures
- Maths
- puzzles
Interview Preparation Tips
Experience: A coding test (Students were asked to bring Laptops)
Tips: Be thorough with C/C++, networking, OS, Data structures and architecture
Duration: 90 minutes
Round: Interview
Experience: 3 rounds of interview, one hour each, all technical
Interview Process:All the three rounds are oriented around programming. A lot of focus was given to Data structures, C/C++, OS and algorithmsThe code from previous test is shown and they expect you to fix any bugs if thereThe interviewers are quietly friendly and help if you get stuck at any pointIf you do have any related projects, anticipate some thorough questions on that
Tips: Though the interviewers are helpful, get your basics clear early on. Don't rely on them.Practice coding sessions, a lot of companies have them as a shortlisting criteria.
College Name: IIT Madras
Interview Preparation Tips
Experience: PAPER DURATION: 3 hours
NO. OF QUESTIONS: 2 (20 marks each)
MAXIMUM MARKS: 20*2 = 40 marksQUESTION 1:
JSON Prettier:-Write a program which takes JSON as input and gives prettified JSONYou need to read JSON from STDIN. Input gives one line of uglified JSON.Output should be formatted JSON. Check the standard output link.Use 2 white spaces (not‘\t’) for one indentation.SAMPLE INPUT:{“group” : {list : [1,2,3]}, “list” : [“a”,”b”,”c”]}SAMPLE OUTPUT:{“group” : {List : [1,2,3]},“list” : [“a”,”b”,”c”]}EXPLANATION: Input will be uglifiedjson in one line and output will be prettified format of that. QUESTION 2:XML parse plus series computationEvaluate an expression given in XML format. Keys will be Expr- contains the entire expression. Elem – contains the digit, sum, Prod- contains two or more keys whose evaluation needs to be summed or multiplied respectively. Sub will contain 2 keys or more, where the second key onwards will have to be subtracted from the first one. Div- will contain 2 keys in which first key will need to be divided by second. SAMPLE INPUT:
20EXPLANATION:Input will be xml file through standard input. End of xml file marked by .
Duration: 180 minutes
Total Questions: 2
College Name: NA
I applied via Campus Placement
(2 Questions)
- Q1. Basic Question on Tree Traversals
- Q2. Questions of Linked List
I applied via Campus Placement
Aptitude questions with 2-3 coding questions
(2 Questions)
- Q1. Input-wwwrrrrttttuu Output - w3r4t4u2
- Q2. Interpreter vs compiler
- Ans.
Interpreter executes code line by line, compiler translates code into machine code before execution.
Interpreter translates code into machine code line by line during runtime
Compiler translates code into machine code before execution
Interpreted languages include Python, JavaScript
Compiled languages include C, C++
I applied via Campus Placement and was interviewed in Sep 2021. There was 1 interview round.
Interview Preparation Tips
2 DSA questions Both are from DP
(2 Questions)
- Q1. 2 Questions , 1 is DSA
- Q2. Second question is Puzzle
Interview Preparation Tips
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Oakland Systems Java Developer Intern Interview Process
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