PhonePe Senior Software Engineer Interview Questions and Answers

Java multithreading is a feature that allows concurrent execution of multiple threads within a single process.

• Multithreading in Java allows multiple threads to run concurrently within a single process.

• Each thread has its own stack and executes independently, but shares the same memory space.

• Java provides built-in support for multithreading through the java.lang.Thread class and java.lang.Runnable interface.

• Multithreadi...read more

Exception hierarchy is a way to organize and categorize different types of exceptions in a software system.

• Exceptions are organized in a tree-like structure with a base class at the top and more specific exception classes below.

• Base class usually is 'Exception' or 'Throwable', with more specific classes like 'IOException', 'NullPointerException', etc.

• Subclasses can provide more specific information about the cause of t...read more

Design an ecommerce website for online shopping

• User-friendly interface for easy navigation

• Secure payment gateway integration

• Product categorization and search functionality

• Customer reviews and ratings

• Responsive design for mobile compatibility