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Java uses pass by value for all variables, including object references.
When an object reference is passed as an argument, a copy of the reference is passed, not the actual object.
Modifying the reference inside the method will not affect the original reference outside the method.
However, modifications to the object's state inside the method will be visible outside the method.
Singleton pattern restricts the instantiation of a class to a single object.
Singleton pattern ensures that only one instance of a class exists throughout the application.
It provides a global point of access to the instance.
Commonly used in scenarios where a single instance needs to coordinate actions across the system.
Example: Database connection manager, logger, configuration manager.
posted on 5 Jun 2024
I applied via Naukri.com and was interviewed in May 2024. There were 3 interview rounds.
2hrs aptitude test was there
2 hrs coding test was there
GD was conducted and then i passed it
posted on 9 Oct 2022
I applied via Job Portal and was interviewed in Apr 2022. There were 5 interview rounds.
It was simple program of url shorting for registered and non registered users each request must have unique shortened url.
A palindrome is a word or phrase that reads the same backward as forward. Implementing it involves comparing the first and last characters and iterating towards the middle.
Implement a function that takes a string as input and returns true if it is a palindrome, false otherwise.
Use two pointers, one starting from the beginning and the other from the end, and compare the characters at each position.
If the characters matc...
posted on 7 May 2023
I applied via Campus Placement and was interviewed before May 2022. There were 3 interview rounds.
posted on 22 Jun 2024
I applied via Job Portal and was interviewed before Jun 2023. There were 4 interview rounds.
Scenarios base conding round
Questions on strings in javascript.
Basic javascript and typescript.
Build a typeahead component
Build a form for personal details
Include fields for name, email, phone number, address, date of birth
Use input fields, dropdowns, and date pickers for user input
Add validation for required fields and correct formats
Consider user experience with clear labels and easy navigation
Implement validations for different fields in software development.
Identify the fields that require validation such as email, password, phone number, etc.
Use regular expressions to validate input data format.
Implement client-side and server-side validations to ensure data integrity.
Display error messages for invalid input to guide users on correct data entry.
I applied via Job Fair and was interviewed in Mar 2022. There were 4 interview rounds.
There were 2 easy question 1 medium
Question were good but have weak test case.
This was project or lld round.
You just be aware of class and other stuff.
Yes, I have knowledge of data structures.
I have experience with common data structures like arrays, linked lists, stacks, queues, trees, and graphs.
I understand the time and space complexity of different data structures and their operations.
I have implemented data structures in various programming languages like C++, Java, and Python.
For example, I have used a hash table to efficiently store and retrieve data in consta
posted on 14 Jan 2025
I applied via Campus Placement and was interviewed before Jan 2024. There were 3 interview rounds.
Easy coding questions DSA
Reverse a linked list by changing the pointers direction
Start with three pointers: current, previous, and next
Iterate through the linked list, updating the pointers to reverse the direction
Update the head pointer to point to the new first node
To find the middle of a linked list, use the slow and fast pointer technique.
Initialize two pointers, slow and fast, both pointing to the head of the linked list.
Move slow pointer by one step and fast pointer by two steps until fast reaches the end of the list.
The position of the slow pointer will be the middle of the linked list.
The question is asking to pick an orange from a basket.
Carefully select a ripe orange without any bruises or blemishes
Gently twist the orange off the stem to avoid damaging the fruit
Check for firmness and weight to determine ripeness
I applied via Approached by Company and was interviewed in May 2024. There was 1 interview round.
Implement phone directory search system
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