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I was interviewed in Dec 2024.
Polymorphism in Java allows objects of different classes to be treated as objects of a common superclass.
Polymorphism allows methods to be overridden in a subclass that is already defined in its superclass.
It enables a single interface to be used for different data types.
Examples include method overriding and method overloading.
Static member class is a nested class that belongs to the outer class, but does not have access to non-static members of the outer class.
Static member class is declared using the 'static' keyword within the outer class.
It can access static members of the outer class directly.
Static member class can be instantiated without an instance of the outer class.
Example: class Outer { static class Inner { } }
Example: Outer.Inner
Non static inner class is a class defined within another class that is not declared as static.
Non static inner class has access to instance variables and methods of the outer class.
It can be instantiated only within an instance of the outer class.
Example: public class Outer { class Inner { } }
Example: Outer outer = new Outer(); Outer.Inner inner = outer.new Inner();
Anonymous classes are inner classes without a name, used for one-time implementation of interfaces or classes.
Anonymous class can be used to implement interfaces or extend classes on the fly.
They are defined and instantiated at the same time.
Syntax: new InterfaceName() { // implementation }
Example: Runnable r = new Runnable() { public void run() { // implementation } };
posted on 14 May 2022
I applied via Naukri.com and was interviewed before May 2021. There was 1 interview round.
I applied via Walk-in and was interviewed before Apr 2020. There were 5 interview rounds.
I was interviewed before Sep 2020.
Round duration - 140 minutes
Round difficulty - Medium
Test timing was at 2:00 pm , it was conducted in a college and the environment was good for the test. Camera was a primary part of test, so no suspicious activity.
Given two numbers in the form of two arrays where each element of the array represents a digit, calculate the sum of these two numbers and return this sum as an ar...
Given two numbers represented as arrays, calculate their sum and return the result as an array.
Iterate through the arrays from right to left, adding digits and carrying over if necessary
Handle cases where one array is longer than the other by considering the remaining digits
Ensure the final sum array does not have any leading zeros
Round duration - 20 minutes
Round difficulty - Easy
The round was conducted at around 12 p.m. I was called at the college location and then it was conducted. The interviewer was quite polite and frank.
Round duration - 8 minutes
Round difficulty - Easy
This round was conducted right after finishing and clearing the technical round at the same place and on the same day.
Tip 1 : Practice atleast 2-3 Coding problems daily so your logic building becomes stronger.
Tip 2 : Exercise problems based on OOPS concepts and others too.
Tip 3 : If you can have your own project built, then it's the major point and will act as a plus point.
Tip 1 : Your resume should be in standard form, short and simple will be more effective.
Tip 2 : Whatever you have learned, you need to mention it in your resume as that will be your primary source of selection and having project on your resume is important.
I applied via Recruitment Consultant and was interviewed before Sep 2020. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Jul 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed before May 2020. There were 4 interview rounds.
I applied via Naukri.com and was interviewed before Apr 2020. There were 5 interview rounds.
I applied via Campus Placement and was interviewed before Jan 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed before May 2020. There were 4 interview rounds.
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