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Inheritance is a concept in object-oriented programming where a class inherits attributes and methods from another class.
Allows a class to inherit properties and behaviors from another class
Promotes code reusability and reduces redundancy
Creates a parent-child relationship between classes
Derived class can access public and protected members of the base class
Example: Class 'Car' can inherit from class 'Vehicle' to reuse
I applied via Walk-in and was interviewed in Sep 2021. There were 5 interview rounds.
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Program to multiply all elements in an array except the element at the current index.
Iterate through the array and keep a running product of all elements before the current index
Iterate through the array again in reverse and multiply the running product with all elements after the current index
Store the result in a new array and return it
I applied via Walk-in and was interviewed in Aug 2022. There were 4 interview rounds.
They asked me about SQL, C ,C ++ ,JAVA
General aptitude was given but it made me ro examine my knowledge and analytical skills
Genral topics like What is SQL and What is the main role of QA , Automation testing are the topics we had to discuss
Selenium IDE is a record and playback tool for automating web applications. Manual testing is done by humans, while automation is done by machines.
Selenium IDE is a browser extension that records user actions and generates automated test scripts.
Manual testing involves human testers executing test cases and verifying results.
Automation testing involves using tools to execute test cases and compare actual results with e...
Automation testing offers faster feedback, increased test coverage, and improved accuracy.
Faster feedback on code changes
Increased test coverage with the ability to run more tests in less time
Improved accuracy and consistency of test results
Reduced testing costs and time
Ability to test in different environments and configurations
Identification of defects earlier in the development cycle
Improved team productivity and co...
I applied via Company Website and was interviewed in Apr 2021. There was 1 interview round.
posted on 24 Jun 2024
I applied via Campus Placement
45 questions were asked
3 questions were asked one from SQL and 2 from java
posted on 22 Nov 2024
Encapsulation, Inheritance, Polymorphism, Abstraction are the four pillars of OOPS in Java.
Encapsulation: Bundling data and methods that operate on the data into a single unit.
Inheritance: Allows a class to inherit properties and behavior from another class.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the implementation details and showing only the necessary features.
A constructor in Java is a special type of method that is used to initialize objects.
Constructors have the same name as the class they are in.
They do not have a return type, not even void.
Constructors are called when an object of a class is created.
Example: public class Car { public Car() { // constructor code } }
I applied via Campus Placement and was interviewed in Jul 2023. There were 3 interview rounds.
There were 13 MCQ questions on DSA, 17 MCQ aptitude questions, and 2 coding questions.
Check if after interleaving strings s1 and s2, we get s3 as one of the answers.
Create a recursive function to check all possible interleavings of s1 and s2
Check if the current interleaving matches s3
Return true if a valid interleaving is found, false otherwise
Cluster indexing physically reorders the data on disk to match the index, while non-cluster indexing does not.
Cluster indexing physically reorders the data on disk to match the index structure, leading to faster retrieval of data.
Non-cluster indexing creates a separate data structure that points to the actual data, which may result in slower retrieval times.
Cluster indexing is typically used in primary keys, while non-...
Stack memory is used for static memory allocation and follows a Last In First Out (LIFO) structure, while heap memory is used for dynamic memory allocation and has a more flexible structure.
Stack memory is limited in size and is typically faster to access compared to heap memory.
Variables stored in stack memory have a fixed size determined at compile time, while variables in heap memory can have a size determined at ru...
A stable sort is a sorting algorithm that preserves the relative order of equal elements in the sorted output.
Stable sorts are useful when the original order of equal elements needs to be maintained.
Examples of stable sorting algorithms include Merge Sort, Bubble Sort, and Insertion Sort.
In a stable sort, if two elements have the same key value, their relative order in the original array is preserved in the sorted arra
Time complexity of insertion in a hashmap is O(1).
Insertion in a hashmap has a constant time complexity of O(1) on average.
This is because hashmaps use a hashing function to determine the index where the key-value pair should be stored.
Even in the worst-case scenario, where there are collisions, the time complexity is still O(1) due to techniques like chaining or open addressing.
Example: Inserting a key-value pair into...
Hashing is a process of converting input data into a fixed-size string of bytes using a hash function.
Hashing is used to securely store passwords by converting them into a hash value.
Hashing is used in data structures like hash tables to quickly retrieve data based on a key.
Common hash functions include MD5, SHA-1, and SHA-256.
I applied via Referral and was interviewed before Jun 2023. There was 1 interview round.
2 Greedy Algo problems
I applied via Job Portal and was interviewed in Aug 2022. There were 4 interview rounds.
2 coding questions 10 aptitude and other 15 technical questions
based on 2 interviews
Interview experience
based on 6 reviews
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