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Pine Labs
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I applied via Referral and was interviewed in Jul 2024. There were 2 interview rounds.
Leet code problem. Sliding window
I applied via Campus Placement and was interviewed in Mar 2024. There were 2 interview rounds.
Handler Looper in Android is a class used to handle messages and run tasks on a specific thread.
Handler Looper is used to manage a queue of messages and execute them on a specific thread.
It works in conjunction with Handler and Message classes to send and process messages.
Looper.loop() method is used to start the message loop for a thread.
Example: Creating a new Handler with a Looper from the main thread to post messag
Pine Labs interview questions for designations
I applied via Recruitment Consulltant and was interviewed before Apr 2023. There were 4 interview rounds.
It was a online hacker rank type test with medium hard question
Print left view of binary tree
Traverse the binary tree level by level
Print the first node at each level encountered
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I applied via Campus Placement
Low-level design interview
I need to design a Music player app using oops concept
Use an additional stack to store sorted elements and maintain the minimum element at the top of the original stack.
Create a new stack to store sorted elements.
Pop elements from the original stack and compare with the top element of the new stack.
If the popped element is smaller, push it to the new stack. If larger, keep popping from the new stack and push to the original stack until the correct position is found.
Repeat...
A process is an instance of a program running on a computer, while a thread is a smaller unit of execution within a process.
A process has its own memory space, while threads within the same process share memory.
Processes are independent of each other, while threads within the same process can communicate with each other.
Processes are heavyweight, requiring separate memory and resources, while threads are lightweight an...
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
Abstract class can have constructor, fields, and methods, while interface cannot have any of these.
A class can implement multiple interfaces but can only inherit from one abstract class.
Abstract class is used to provide a common base for multiple derived classes, while interface is used to define a contract fo...
A race condition is a situation in which the outcome of a program depends on the order of execution of its threads or processes.
Occurs when multiple threads or processes access shared data or resources concurrently
Can lead to unpredictable behavior or bugs in the program
Prevented by using synchronization mechanisms like locks or semaphores
Example: Two threads trying to increment a shared variable simultaneously
Normalization in DBMS is the process of organizing data in a database to reduce redundancy and improve data integrity.
Normalization involves breaking down a database into smaller, more manageable tables.
It helps in reducing data redundancy by storing data in a structured way.
There are different normal forms like 1NF, 2NF, 3NF, BCNF, etc.
Example: In a database of students, instead of storing student details in multiple ...
I applied via Walk-in and was interviewed in Sep 2023. There were 3 interview rounds.
An aptitude has exam used to determine an individual skills a given activity
I applied via Recruitment Consulltant and was interviewed in Aug 2024. There was 1 interview round.
1 hour 10 mins, MERN Stack, Face to Face. Mongodb, medium DSA Question, callback, eventloop, NodeJS asynchronous working
based on 8 interviews
2 Interview rounds
based on 40 reviews
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2-5 Yrs
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