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I applied via Naukri.com and was interviewed in Aug 2023. There were 3 interview rounds.
I applied via LinkedIn and was interviewed in Aug 2023. There was 1 interview round.
I applied via Approached by Company and was interviewed before Nov 2022. There were 5 interview rounds.
Weak reference is a reference that does not prevent the referenced object from being garbage collected.
Weak references are used in programming languages to avoid memory leaks.
They are typically used in cache implementations to allow objects to be garbage collected when not in use.
Weak references are created using WeakReference class in Java.
Worked on various frameworks including React, Angular, and Spring
React
Angular
Spring
Fetch remote api data into iOS table view with latest of the frameworks
I applied via Naukri.com and was interviewed in Apr 2022. There were 4 interview rounds.
Rally OurBus interview questions for popular designations
I applied via Company Website and was interviewed before Oct 2019. There were 4 interview rounds.
I applied via Campus Placement and was interviewed in Oct 2020. There were 4 interview rounds.
Dictionary is a collection of key-value pairs in Python.
Keys must be unique and immutable.
Values can be of any data type.
Access values using keys.
Add or modify values using keys.
Use dict() constructor or {} to create a dictionary.
Example: {'name': 'John', 'age': 30}
Example: dict(name='John', age=30)
I applied via Campus Placement and was interviewed before Sep 2019. There were 5 interview rounds.
OOPs concepts in Java are the fundamental principles of object-oriented programming.
Encapsulation: wrapping data and code into a single unit
Inheritance: creating new classes from existing ones
Polymorphism: using a single interface to represent multiple types
Abstraction: hiding implementation details from the user
Examples: class, object, inheritance, polymorphism, encapsulation
Stack is a LIFO data structure while Queue is a FIFO data structure.
Stack follows Last In First Out (LIFO) principle while Queue follows First In First Out (FIFO) principle.
Stack has two main operations: push and pop while Queue has two main operations: enqueue and dequeue.
Stack is used in recursive function calls, undo/redo operations, and backtracking while Queue is used in breadth-first search, printing tasks in ord...
SQL query to find second highest salary in database
Use ORDER BY and LIMIT to get the second highest salary
Assume ties are allowed and use DISTINCT
Method overloading is having multiple methods with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.
Method overloading is done within the same class while method overriding is done in different classes (subclass and superclass).
Method overloading is achieved by changing the number of parameters or the data type of ...
The parent class of all classes in Java is the Object class.
All classes in Java implicitly extend the Object class.
The Object class provides basic methods such as toString(), equals(), and hashCode().
Any class can override these methods to provide custom implementations.
Example: public class MyClass extends Object { ... }
Example: Object obj = new MyClass();
SQL databases are relational and use structured query language, while NoSQL databases are non-relational and use various data models.
SQL databases are based on a fixed schema, while NoSQL databases are schema-less.
SQL databases use tables to store data, while NoSQL databases use various data models like key-value, document, columnar, or graph.
SQL databases are better suited for complex queries and structured data, whil...
I applied via Naukri.com and was interviewed before Aug 2021. There was 1 interview round.
I applied via Naukri.com and was interviewed in Nov 2020. There was 1 interview round.
TCS stands for Tata Consultancy Services, a multinational IT services company based in India.
TCS is one of the largest IT services companies in the world.
It provides a wide range of services including consulting, software development, and business process outsourcing.
TCS has clients in various industries such as banking, healthcare, and retail.
The company has a strong focus on innovation and has several research and de...
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