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Automatic Data Processing (ADP) Application Developer Interview Questions and Answers
Automatic Data Processing (ADP) Application Developer Interview Experiences
1 interview found
Anonymous
(1 Question)
- Q1. Garbage collector algorithm
- Ans.
Garbage collector algorithm manages memory allocation and deallocation in a program.
Garbage collector automatically frees up memory that is no longer in use.
It identifies and removes objects that are no longer referenced by the program.
There are different types of garbage collector algorithms such as mark-and-sweep, reference counting, and generational.
Java and .NET languages use garbage collector by default.
Garbage co...
(1 Question)
- Q1. Memory management questions
Interview Preparation Tips
Application Developer Jobs at Automatic Data Processing (ADP)
Top trending discussions
Interview questions from similar companies
(1 Question)
- Q1. Difference between class & interface
- Ans.
Classes can have both implementation and data members, while interfaces can only have method signatures.
Classes can have constructors, interfaces cannot.
Classes can have access modifiers for their members, interfaces cannot.
A class can implement multiple interfaces, but can only inherit from one class.
Interfaces are used to achieve abstraction and multiple inheritance in Java.
Example: Class 'Animal' can have methods li...
(1 Question)
- Q1. About current project
Interview Preparation Tips
(1 Question)
- Q1. Stacks queues data structures
Selected
I applied via Campus Placement and was interviewed before Aug 2023. There were 2 interview rounds.
Asked QRE question and some query questions
(2 Questions)
- Q1. Introduce yourself
- Ans.
I am a passionate application developer with experience in creating innovative solutions for various industries.
Experienced in developing web and mobile applications using languages such as Java, JavaScript, and Swift
Proficient in database management and integration with applications
Strong problem-solving skills and ability to work in a team environment
Familiar with Agile development methodologies and continuous integr
- Q2. What are the technology you are familiar with
- Ans.
I am familiar with a variety of technologies including Java, Python, SQL, HTML, CSS, JavaScript, and Git.
Java
Python
SQL
HTML
CSS
JavaScript
Git
Interview Preparation Tips
I was interviewed in Jun 2021.
(2 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
This was a proctured online coding test where we had 2 questions to solve under 60 minutes.
- Q1.
Minimum Cost to Connect All Points Problem Statement
Given an array
COORDINATESrepresenting the integer coordinates of some points on a 2D plane, determine the minimum cost required to connect all points... - Q2.
Count Inversions Problem Statement
Given an integer array
ARRof sizeN, your task is to find the total number of inversions that exist in the array.An inversion is defined for a pair of integers in the...
(4 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
This round had 1 question of DSA followed by some questions from DBMS and Java. I was also made to execute a SQL query at the end.
- Q1.
Remove the Kth Node from the End of a Linked List
You are given a singly Linked List with 'N' nodes containing integer data and an integer 'K'. Your task is to delete the Kth node from the end of this Lin...
- Q2. Can you explain the different types of normalization forms in a DBMS?
- Q3. Can you write a SQL query that joins two tables A and B on the common attribute ID and selects records (ID_NAME) that have matching ID values in both tables?
- Q4. Why is Java considered platform independent, while the Java Virtual Machine (JVM) is platform dependent?
(2 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
This round had two preety straight forward questions related to DSA and then there were 2 puzzles.
- Q1.
Find All Occurrences in Matrix
You are provided with a matrix of characters,
CHARACTER_MATRIXof sizeM x N, and a stringWORD. Your goal is to locate and display all occurrences of the string within the ... - Q2.
Greatest Common Divisor Problem Statement
You are tasked with finding the greatest common divisor (GCD) of two given numbers 'X' and 'Y'. The GCD is defined as the largest integer that divides both of the...
(1 Question)
Round duration - 30 Minutes
Round difficulty - Easy
This was a typical HR round with some standard Behavioral questions.
- Q1. Why do you want to be a part of Oracle?
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Nov 2021. There was 1 interview round.
Interview Questionnaire
3 Questions
- Q1. Round one 1. Two common array and string question. One SQL query.
- Q2. Round 21. One string question. Finding substring in a sub string. 2. Longest palendrome in string
- Q3. Round 3. 1. Print K 2. One chess board kind of problem statement.
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Apr 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Questions abouts OOPs, Serialisation, Design Patterns, Multi threading, coding questions (mostly on usage of arrays, some questions around Multi threading)
Interview Preparation Tips
I applied via campus placement at Chaitanya Bharathi Institute of Technology, Hyderabad and was interviewed before Jun 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Java concepts, merge sorted linked lists, merge sort intuition, Min cuts such that all substrings should be palindrome
Interview Preparation Tips
Never manage things which you don’t know
Be clear and concise
Interview Questionnaire
10 Questions
- Q1. Code :- A simple C program to reverse the words in a string , like if string is “Oracle @ App Dev”, then it should become “Dev App @ Oracle”
- Q2. Puzzle: – Two persons X and Y are sitting side by side with a coin in each’s hand. The game is to simultaneously flip the coin till anyone wins. Player X will win if he gets a consecutive HEAD, TAIL howeve...
- Q3. Some DBMS questions like normalization, joins and composite key
- Q4. Code: – Given the value of a starting position and an ending position, you have to reach from start to end in a linear way, and you can move either to position immediate right to current position or two st...
- Ans.
Print all possible paths from start to end in a linear way, moving either one or two steps right.
Use dynamic programming to solve the problem
Create a 2D array to store the number of paths to each position
Start from the end position and work backwards
At each position, calculate the number of paths by summing the number of paths from the next two positions
Print all the paths by backtracking from the start position
- Q5. You are provided a CSV (Comma Separated Values) in file like E1:12, E2:32 etc. You have to generate a tree with maximum height 3 only with the given values in the following manner : E is the root of tree h...
- Q6. Provided a string a character and a count, you have to print the string after the specified character has occurred count number of times. Ex: String: “This is demo string” Character: ‘i’ Count: 3 Output: “...
- Ans.
The program prints the substring after a specified character has occurred a certain number of times in a given string.
Iterate through the string to find the specified character.
Keep track of the count of occurrences of the character.
Once the count reaches the specified count, extract the substring after that position.
Handle corner cases such as when the character is not in the string or when it doesn't occur the specif
- Q7. Design a website similar to bookmyshow.com for booking cinema tickets but it must be for a single location only which can have multiple theatres in it. In this he wanted me to design a basic rough GUI, rel...
- Ans.
Design a website similar to bookmyshow.com for booking cinema tickets for a single location with multiple theatres.
Design a user-friendly GUI with options for advance booking, user login, user registration, movie rating, and saving card details.
Create relevant database tables to store information about movies, theatres, bookings, user details, and card details.
Link the GUI to the database to enable data flow and retrie...
- Q8. Puzzle: Given 10 coins, arrange them such that we get 4 different rows each containing 4 coins
- Q9. Puzzle: Gi1ven 4 coins, arrange then to make maximum numbers of triangle of the figure
- Q10. In the end he asked Database Normalization and all the normal forms in detail
Interview Preparation Tips
Experience: Initially an online written round was conducted consisting of following sections:
1. General aptitude
2. Logical Reasoning
3. Technical (Basic C/C++ questions)
4. English
Overall time limit was nearly 2 hrs. It was an easy round.
Round: Test
Experience: Then after this a large number of students were selected for the next coding round, where we had just one problem to code and time limit was 30 minutes. Problems were randomly distributed, it’s just that coding interface was not that good so many fellow mates of mine faced problem getting the output to the console in the right manner.I got the following program:A number x supports a number (x+b) where b is the number of set bits in binary representation of x, like if x = 3 then x supports (3+2)=5 as 3 has 2 1’s in its binary representation. Now you are provided with an array of numbers you have to print SUPPORTED if number is supported by any number if not print BLEAK else if there is an invalid input print 0.After this round 77 students were selected for the interview rounds. A big panel of 9 members had arrived to conduct these interviews.
Round: HR Interview
Experience: This round went for like 45 minutes, the interviewer was really nice and was giving certain clues in between to guide me.
Round: Technical Interview
Experience: This was a long and scary round, it lasted for like 2 hours.
Round: HR Interview
Experience: The interviewer asked me about the previous codes that I had made in previous rounds. He was more concerned about the approach than code. Then he start questioning about the site I made in round 3 regarding how I will amend it if it has to go global to alltype of customers. Then there were some basic HR questions.
Finally 3 students were selected out of total 77 students including me.
College Name: NA
Skills evaluated in this interview
Interview Questionnaire
12 Questions
- Q1. Explain your internship project
- Q2. Given a matrix.Write a code to print the transpose of the matrix
- Ans.
The code prints the transpose of a given matrix.
Iterate through each row and column of the matrix.
Swap the elements at the current row and column with the elements at the current column and row.
Print the transposed matrix.
- Q3. Write code to find the middle element of a linked list
- Ans.
Code to find the middle element of a linked list
Traverse the linked list with two pointers, one moving twice as fast as the other
When the fast pointer reaches the end, the slow pointer will be at the middle element
If the linked list has even number of elements, return the second middle element
- Q4. Explain multitasking and multiprogramming
- Ans.
Multitasking is the ability of an operating system to run multiple tasks concurrently while multiprogramming is the ability to run multiple programs concurrently.
Multitasking allows multiple tasks to run concurrently on a single processor system.
Multiprogramming allows multiple programs to run concurrently on a single processor system.
Multitasking is achieved through time-sharing, where the processor switches between t...
- Q5. How was the other two interviews.Explain your approach for all those questions
- Q6. Write a code for inserting two numbers in a text file given n2>n1 and the next entry should not be overlapping like if first was 4,6 next can't be 5,7.the second n1 has to be greater than first n2
- Ans.
The code inserts two numbers in a text file, ensuring that the second number is greater than the first and there is no overlap between entries.
Read the existing entries from the text file
Check if the new numbers satisfy the conditions
If conditions are met, insert the new numbers into the file
Otherwise, display an error message
- Q7. What are your plans for higher studies?
- Q8. Asked about ppt.What you liked.If I have any questions
- Q9. In a bag you have 20 black balls and 16 red balls.When you take out 2 black balls you take another white ball.If you take 2 white balls then you take out 1 black ball and if balls are of different color yo...
- Q10. There are five glasses that are kept upside down.At a time you are bound to turn four glasses.Give minimum number of times in which you can turn back all the glasses so that now none among them are upside...
- Q11. Why Oracle?If you could not qualify for other companies or Why you did not choose other companies?
- Q12. Write a code to count the number of times '1' occurs from 1 to 999999
- Ans.
Code to count the number of times '1' occurs from 1 to 999999
Loop through all numbers from 1 to 999999
Convert each number to a string and count the number of '1's in it
Add the count to a running total
Return the total count
Interview Preparation Tips
Experience: Every section had 3-4 subsections.Questions on coding skills were a bit tougher.Trees and Graphs were major topics here. Others were finding complexities,array representation of trees etc.Codes were written in c++.DBMS had normal theoretical questions and simple SQL queries. Software engineering had flow charts mainly with problem statement given and few boxes in the charts left to be filled by you from given options.Aptitude and verbal was easy
Tips: Although the questions were a bit tougher but hold your nerves.Try to give your best based upon whatever you have studied till date.Apply all your logics and you can solve it.Total 200 students took the test and they shortlisted around 60. So even if you do a bit better than others you have very good chance to get shortlisted for the next round.
Do well in aptitude section. They will be easy and will maximize your score.
Duration: 120 minutes
Round: Technical Interview
Experience: My internship project was a java framework for automation of unit testing and the interviewer took special interest in that.He gave ample time to think about the logic for codes. This round was not so tough.
Tips: Make sure that you know your projects thoroughly with all the pros and cons with all the future aspects.They were least interested in which language you are coding. Even if you get the logics correct and write the algorithms you were selected for the next round.
Round: Puzzle Interview
Experience: This round was a bit rougher. I couldn't answer one puzzle.The interviewer was adding more stress to environment. Even for your correct answer he was acting as if you have given a wrong answer. He was a man with no emotions. May be he was checking how far you can pretend to be confident.
Tips: Seeing his emotions I seriously felt that I am not going to get shortlisted for the next round although I had answered remaining questions perfectly.So don't get disheartened. Situation will be same for all.Be confident.Whatever you know express that confidently.
Round: Technical Interview
Experience: This round was not so tough.Although he asked me to write code in c.I asked him if I can write in java as I am more comfortable in java.He said I will be more than happy if you can write in English language and just give me flow chart considering all the constraints.
Tips: Even if you are not from CSE background,try to think logically. They were not seeing your coding skills rather they were more concerned with your logic and algorithms. They were giving ample time to think.
Round: HR Interview
Experience: HR was just formality. Normal questions were asked.
General Tips: Special suggestion for ECE students. Don't think that you can't beat CS student in technical interview. Know your projects. Have basic knowledge of Data structures, OS and DBMS.Even they don't expect us to be like CS guy but be sure that you can impress them with your logics.
Skills: Confidence, Puzzle Solving Capability, Basic Knowledge Of DBMS, Algorithmic Approach To Problem Solving, Operating Systems, Data Structures
College Name: NIT Raipur
Skills evaluated in this interview
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