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Synechron Java Software Developer Interview Questions, Process, and Tips
Synechron Java Software Developer Interview Experiences
1 interview found
I was interviewed in Feb 2022.
(7 Questions)
- Q1. Run time polymorphism vs compile time polymorphism
- Ans.
Run time polymorphism is method overriding while compile time polymorphism is method overloading.
Compile time polymorphism is resolved at compile time while run time polymorphism is resolved at runtime.
Method overloading is an example of compile time polymorphism while method overriding is an example of run time polymorphism.
Compile time polymorphism is faster than run time polymorphism as it is resolved at compile tim...
- Q2. Internal working of HashMap
- Ans.
HashMap is a data structure that stores key-value pairs and provides constant time complexity for basic operations.
HashMap uses hashing to store and retrieve elements
It allows null values and only one null key
Collisions are resolved using separate chaining or open addressing
The initial capacity and load factor can be specified during initialization
The size of the HashMap is dynamically increased as elements are added
- Q3. How do you handle exceptions in Rest APIs
- Ans.
Exceptions in Rest APIs are handled using try-catch blocks and appropriate error responses.
Use try-catch blocks to catch exceptions that may occur during API execution.
Handle different types of exceptions separately to provide specific error responses.
Return appropriate HTTP status codes and error messages in the response.
Log the exception details for debugging purposes.
Consider using a global exception handler to cent
- Q4. What is the highest limit of Hashmap?
- Ans.
The highest limit of HashMap is Integer.MAX_VALUE, which is 2^31 - 1.
The highest limit is determined by the maximum capacity of an array in Java, which is Integer.MAX_VALUE.
The default initial capacity of a HashMap is 16, and it automatically increases its capacity as needed.
If the number of elements exceeds the maximum capacity, an OutOfMemoryError will be thrown.
- Q5. What are functional interfaces? What is the need to have functional interfaces?
- Ans.
Functional interfaces are interfaces with only one abstract method. They are used for lambda expressions and method references.
Functional interfaces are used for functional programming in Java.
They are used for lambda expressions and method references.
They have only one abstract method.
Examples of functional interfaces are Runnable, Callable, and Comparator.
Functional interfaces can be annotated with @FunctionalInterfa
- Q6. What are streams in Java and why are they used?
- Ans.
Streams in Java are a sequence of elements that can be processed in parallel or sequentially.
Streams are used to perform operations on collections of data in a concise and functional way.
They can be used to filter, map, reduce, and sort data.
Streams can be processed in parallel to improve performance.
Examples of stream methods include filter(), map(), reduce(), and sorted().
- Q7. How do you convert list to arraylist? And vice versa
- Ans.
To convert list to arraylist, use ArrayList constructor. To convert arraylist to list, use List constructor.
To convert list to arraylist, use ArrayList constructor and pass the list as parameter.
To convert arraylist to list, use List constructor and pass the arraylist as parameter.
Example: List
list = Arrays.asList("one", "two", "three"); ArrayList
arrayList = new ArrayList<>(list); Example: ArrayList
arrayList = new Arr...
Interview Preparation Tips
This means that along with definition, understand how something was done initially, how it has now changed, why was there a need for change, the advantages, the drawbacks, internal workings etc.
Skills evaluated in this interview
Interview questions from similar companies
Software Developer Interview Questions & Answers
Virtusa Consulting Services
Bhuvaneswari majji
posted on 3 Jan 2025
I applied via Referral and was interviewed in Dec 2024. There were 2 interview rounds.
(3 Questions)
- Q1. Run time polymorphism code
- Q2. Linked list code
- Q3. Deep copy shallow copy differences
- Ans.
Deep copy creates a new copy of an object with its own unique memory space, while shallow copy creates a new object that references the same memory locations as the original object.
Deep copy duplicates all nested objects, while shallow copy only duplicates the references to nested objects.
Deep copy ensures that changes to the copied object do not affect the original object, while shallow copy may lead to unintended sid...
(2 Questions)
- Q1. More deep questions about polymorphism code
- Q2. Code for interchange of strings without strcpy
- Ans.
Use a loop to swap characters of two strings without using strcpy function.
Create two arrays of characters to store the strings
Use a loop to iterate through each character of the strings and swap them
Ensure to handle cases where strings have different lengths
Interview Preparation Tips
(2 Questions)
- Q1. Explain architecture of your project
- Q2. Some questions on Java, Spring Boot and sql
(2 Questions)
- Q1. Project flow and some behavioural questions
- Q2. Project contribution of yours
- Ans.
Developed a web application for tracking employee attendance and performance
Implemented user authentication and authorization using Spring Security
Utilized Hibernate for database interaction and data persistence
Designed and developed RESTful APIs for frontend integration
Used AngularJS for frontend development to create interactive user interfaces
(1 Question)
- Q1. Basic formalities before offer release
Interview Preparation Tips
I applied via Company Website and was interviewed in Nov 2024. There were 3 interview rounds.
A standard online test conducted through one of the testing platforms.
(4 Questions)
- Q1. Java 8 features
- Q2. Rest API
- Q3. Java 8 coding problem
- Q4. Collections
(1 Question)
- Q1. It was based on my previous project
Sahil Kumar
SQL , CODING QUESTION PYTHON
(2 Questions)
- Q1. BASIC SQL QUESTIOS
- Q2. OOPS 4 PILLARS INHERITANCE ETC
(2 Questions)
- Q1. TELL ME ABOUT YOURSELF
- Ans.
I am a software developer with 5 years of experience in Java, Python, and SQL.
5 years of experience in Java, Python, and SQL
Strong problem-solving skills
Experience working in Agile development environment
Familiarity with version control systems like Git
Passionate about learning new technologies
- Q2. WHAT DO YOU KNOW ABOUT YOUR COMPANY
- Ans.
Company is a leading software development firm specializing in creating innovative solutions for various industries.
Company has a strong reputation for delivering high-quality software products
Specializes in creating custom solutions for clients in different industries
Known for innovative and cutting-edge technology solutions
Has a diverse portfolio of successful projects
Company values teamwork and collaboration in thei
Neha Patil
(2 Questions)
- Q1. Difference between linked list and array list
- Ans.
Linked list is a data structure where elements are stored in nodes with pointers to the next node. Array list is a dynamic array that can grow or shrink in size.
Linked list allows for efficient insertion and deletion of elements anywhere in the list.
Array list provides fast access to elements using index, but slower insertion and deletion compared to linked list.
Example: Linked list - 1 -> 2 -> 3 -> 4 -> 5, Array list
- Q2. Difference between @controller and @ Rest controller
- Ans.
The @Controller annotation is used for traditional MVC controllers, while @RestController is used for RESTful web services.
The @Controller annotation is used to define a class as a Spring MVC controller, which can handle HTTP requests and return a view.
The @RestController annotation is used to define a class as a controller for RESTful web services, which can handle HTTP requests and return data in JSON or XML format.
T...
Skills evaluated in this interview
Senior Java Developer Interview Questions & Answers
SS&C TECHNOLOGIES
Raghavender Goud V
posted on 14 Sep 2024
(2 Questions)
- Q1. Core java oops concepts
- Q2. Angular basic topics
(2 Questions)
- Q1. Spring boot topics
- Q2. Oracle queries examples
- Ans.
Examples of Oracle queries
Use SELECT statement to retrieve data from a table
Use WHERE clause to filter results based on a condition
Use JOIN to combine rows from two or more tables based on a related column
(2 Questions)
- Q1. Discussed about my carrer details
- Q2. Expected CTC discussed
Interview Preparation Tips
Skills evaluated in this interview
(2 Questions)
- Q1. Chvvvv vvbbbbb isush shjshs jdudjdj
- Q2. Vvvhjjjc hhhjVv hsudjsj hsudjsh hdhdh
Interview Preparation Tips
Software Developer Interview Questions & Answers
Bosch Global Software Technologies
Anonymous
posted on 24 Sep 2024
(5 Questions)
- Q1. String reverse
- Q2. Dsa linked lists
- Q3. Linked lists reverse
- Q4. Map unique elements
- Ans.
Map unique elements in an array of strings
Create a map to store unique elements
Iterate through the array and add each element to the map as a key
Retrieve the keys of the map to get the unique elements
- Q5. Sets find elements in set
- Ans.
Sets are data structures that store unique elements and can be used to efficiently find elements in the set.
Sets do not allow duplicate elements, so each element in a set is unique.
To find elements in a set, you can use the 'has' method to check if a specific element is present in the set.
Sets are commonly used in programming for tasks like removing duplicates from a list or checking for the presence of specific elemen
Skills evaluated in this interview
Selected
I applied via Recruitment Consulltant
(1 Question)
- Q1. Ask for basic dot net questions
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