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SAP Java Developer Interview Questions and Answers
SAP Java Developer Interview Experiences
3 interviews found
(2 Questions)
- Q1. Min stack write code with full operation
- Ans.
A min stack is a stack data structure that supports the usual push and pop operations, along with an additional operation to retrieve the minimum element in constant time.
Create a stack to store the elements and another stack to store the minimum values encountered so far.
When pushing an element, check if it is smaller than the current minimum. If so, push it onto the minimum stack.
When popping an element, check if it ...
- Q2. Graph and sql ,concept problem
(2 Questions)
- Q1. Merge Sort based tricky ques
- Q2. Island problem leetcode
Skills evaluated in this interview
I applied via LinkedIn and was interviewed in May 2024. There were 2 interview rounds.
Asked about introduction and then few coding questions
(2 Questions)
- Q1. Given a code, what will be the output of this?
- Ans.
The output of the code will be the sum of the elements in the given array.
The code likely involves iterating through the array and adding up the elements.
Make sure to handle edge cases like empty arrays or arrays with negative numbers.
Example: If the array is [1, 2, 3], the output will be 6.
- Q2. What is a hashMap and difference between HashMap and concurrentHashMap
- Ans.
HashMap is a data structure in Java that stores key-value pairs. ConcurrentHashMap is a thread-safe version of HashMap.
HashMap is not thread-safe, while ConcurrentHashMap is thread-safe.
ConcurrentHashMap allows concurrent read and write operations without the need for external synchronization.
HashMap allows null keys and values, while ConcurrentHashMap does not allow null keys or values.
Skills evaluated in this interview
I applied via campus placement at Mumbai University and was interviewed before Sep 2023. There were 3 interview rounds.
BST formation code in java
(2 Questions)
- Q1. Multi Threading consumer producer
- Q2. User Defined Exceptions
(2 Questions)
- Q1. Scenario based question
- Q2. Work Life Balance
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I applied via Recruitment Consulltant and was interviewed in Sep 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Difference between hashset and hashtable
- Ans.
HashSet is an unordered collection of unique elements, while Hashtable is a synchronized collection of key/value pairs.
HashSet does not allow duplicate elements, while Hashtable does not allow duplicate keys.
HashSet does not maintain insertion order, while Hashtable does not guarantee any order.
HashSet allows null values, while Hashtable does not allow null keys or values.
- Q2. Collection vs Collections
- Ans.
Collection is an interface in Java that represents a group of objects, while Collections is a utility class that contains static methods for operating on collections.
Collection is an interface in Java that represents a group of objects.
Collections is a utility class in Java that contains static methods for operating on collections.
Example: List
list = new ArrayList<>(); Collection collection = list; Example: Collections
(2 Questions)
- Q1. SQL query related questions
- Q2. Write a Java program to find the duplicate in Array
- Ans.
Java program to find duplicates in an array of strings
Create a HashSet to store unique elements
Iterate through the array and check if element is already in the HashSet
If element is already in the HashSet, it is a duplicate
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in May 2024. There were 3 interview rounds.
(2 Questions)
- Q1. Java concepts based on streams and oops concepts and singleton class
- Q2. DSA questions like first missing number and rotate array
(2 Questions)
- Q1. SQL queries based on group by and implementation of min heap
- Q2. Scenario based question like what data structure are used
(2 Questions)
- Q1. Java based questions like difference between interface and abstract class and spring boot rest API implementation
- Q2. Permutation of the number without duplicates
- Ans.
Generate all permutations of a given number without duplicates
Use backtracking to generate all possible permutations
Avoid duplicates by keeping track of used digits
Recursively swap digits to generate permutations
Skills evaluated in this interview
Java Developer Interview Questions & Answers
Automatic Data Processing (ADP)
Anonymous
posted on 3 Jan 2025
I applied via Referral and was interviewed in Jul 2024. There was 1 interview round.
(2 Questions)
- Q1. How can a Spring Boot project be created to develop an API that returns specified data?
- Q2. What is the code to print a right-angled triangle of numbers based on a given input number?
Komal Kolani
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
(2 Questions)
- Q1. Collections framework, Explain why you chose a particular collection instead of other with example scenario based
- Q2. Explain your project
- Ans.
Developed a web application for online shopping with features like user authentication, product search, and order management.
Implemented user authentication using Spring Security
Utilized Hibernate for database operations
Designed front-end using AngularJS for dynamic user interface
Questions on permuation and combination
(2 Questions)
- Q1. Java core and advanced concepts
- Q2. Springboot annotations, spring mvc, spring security
(1 Question)
- Q1. Friendly questions
I was interviewed in Jun 2024.
Java Coding Questions based on ArrayList, HashMap, etc.
Count distinct elements in given String.
(2 Questions)
- Q1. Current Project architecture.
- Ans.
Our current project architecture follows a microservices design pattern with separate services for different functionalities.
Microservices architecture with separate services for different functionalities
Use of RESTful APIs for communication between services
Containerization using Docker for easy deployment and scalability
Implementation of service discovery and load balancing with tools like Kubernetes
Use of message bro
- Q2. My role in project
- Ans.
My role in the project was to develop and maintain Java applications to meet the project requirements.
Developing Java applications based on project requirements
Maintaining and updating existing Java code
Collaborating with team members to ensure project success
I applied via Company Website and was interviewed in Feb 2024. There was 1 interview round.
(5 Questions)
- Q1. When will you start a company
- Q2. How Many location in company
- Q3. Who is the CEO of Zoho
- Ans.
Sir.Sridhar Vembu is the founder and CEO
- Q4. What is the high salary of Zoho
- Q5. Is Zoho a foreign company?
- Ans.
Yes, Zoho is a foreign company based in India.
Zoho is headquartered in Chennai, India.
It was founded by Sridhar Vembu in 1996.
Zoho has offices in multiple countries including the United States, China, Japan, and Singapore.
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