Jiffy Software Software Development Engineer Intern Interview Questions and Answers

45 questions, 50 mins

3 questions esy to medium, 75 minutes

Q1. Oops in python explain and coding
Add your answer
Q2. Explain access specifiers in python
Add your answer

Q1. What is Dependency Injection?
Ans. 
Dependency Injection is a design pattern in which components are given their dependencies rather than creating them internally.
• Allows for easier testing by providing mock dependencies

• Promotes loose coupling between components

• Improves code reusability and maintainability

• Examples: Constructor injection, Setter injection, Interface injection
Answered by AI
Add your answer
Q2. How to handle exception in java
Ans. 
In Java, exceptions can be handled using try-catch blocks to catch and handle specific exceptions.
• Use try-catch blocks to catch exceptions and handle them gracefully

• Use multiple catch blocks to handle different types of exceptions

• Use finally block to execute code regardless of whether an exception is thrown or not

• Throw custom exceptions using throw keyword
Answered by AI
Add your answer

Q1. In Java8, different between flatmap and map
Ans. 
map transforms each element in a stream, while flatMap transforms each element into multiple elements
• map applies a function to each element in a stream and returns a new stream of the results

• flatMap applies a function that returns a stream for each element in the original stream, then flattens the streams into a single stream

• Example: map - stream.map(x -> x * x), flatMap - stream.flatMap(str -> Arrays.stream(str.split(
Answered by AI
Add your answer
Q2. How to handle the ConcureentModificationException
Ans. 
ConcurrentModificationException occurs when a collection is modified while iterating over it.
• Use Iterator to iterate over the collection instead of foreach loop.

• If modification is necessary, use Iterator's remove() method instead of collection's remove() method.

• Consider using synchronized collections or ConcurrentHashMap to avoid ConcurrentModificationException.
Answered by AI
Add your answer

Q1. 1. Question on Projects, Job, Contribution.
Add your answer
Q2. Javascript : closures, promise
Add your answer
Q3. Guess Output based questions
Add your answer
Q4. Coding : Given array and target, find the index pair of elements the sum becomes target
Ans. 
Given an array and target, find the index pair of elements the sum becomes target.
• Use a hash table to store the difference between target and current element

• Check if the difference exists in the hash table

• Return the indices of the current element and the difference
Answered by AI
Add your answer