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Group discussion about a topic artificial intelligence
Python code snippets for beginners
Use print() function to display output
Indentation is crucial in Python for code blocks
Python is case-sensitive, so be careful with variable names
Program to reverse a string using Java
Use StringBuilder class to reverse the string
Convert the string to StringBuilder, call reverse() method, then convert back to string
Alternatively, use char array and swap characters from start and end
ArrayList vs LinkedList: ArrayList uses dynamic array, LinkedList uses doubly linked list. HashMap vs HashSet: HashMap stores key-value pairs, HashSet stores unique elements.
ArrayList is faster for accessing elements by index, LinkedList is faster for adding/removing elements in the middle.
HashMap allows null key and values, HashSet does not allow duplicate elements.
Example: ArrayList
Write a program for string reverse
String is immutable, StringBuffer is synchronized and mutable, StringBuilder is not synchronized and mutable.
String is immutable, meaning its value cannot be changed once it is created.
StringBuffer is synchronized, making it thread-safe, but slower than StringBuilder.
StringBuilder is not synchronized, making it faster than StringBuffer but not thread-safe.
Abstract classes can have both abstract and non-abstract methods, while interfaces can only have abstract methods.
Abstract classes can have constructors, interfaces cannot.
A class can implement multiple interfaces, but can only extend one abstract class.
Interfaces are used to achieve multiple inheritance in Java.
Abstract classes are used to provide a common base for subclasses to extend.
Object-Oriented Programming (OOP) is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
OOP focuses on creating objects that interact with each other to solve a problem.
It involves concepts like classes, objects, inheritance, polymorphism, and encapsulation.
For example, in a banking system, a 'BankAccount' class can have objects like '...
Collections refer to the process of gathering and organizing items or objects into a group.
Collections can include items such as books, art, antiques, coins, stamps, etc.
People often collect items based on personal interest, hobby, or investment purposes.
Collections can be displayed in museums, galleries, private homes, or online platforms.
Some famous collections include the British Museum in London, the Louvre in Pari
List is an ordered collection of elements with duplicates allowed, while Set is an unordered collection of unique elements.
List maintains the insertion order of elements, while Set does not guarantee any specific order.
List allows duplicate elements, while Set does not allow duplicates.
Examples: List - [1, 2, 3, 1], Set - {1, 2, 3}
Girmiti Software interview questions for popular designations
I applied via Approached by Company and was interviewed in Apr 2024. There were 3 interview rounds.
Get interview-ready with Top Girmiti Software Interview Questions
1.Remove the duplicates in the array.
2.reverse a string
Object-oriented programming in Java allows for creating classes and objects to model real-world entities. Multithreading enables concurrent execution of multiple threads within a single process.
Java supports OOP concepts like inheritance, encapsulation, polymorphism, and abstraction.
Multithreading in Java allows multiple threads to run concurrently, improving performance and responsiveness.
Example: Creating a new threa...
Good day
It was nice
I applied via Naukri.com and was interviewed in Mar 2022. There was 1 interview round.
Questions related to software testing concepts and techniques.
To add elements to a hashmap, use the put() method.
To handle a dropdown, use the Select class in Selenium.
To select a particular value from a dropdown, use the selectByVisibleText() or selectByValue() method.
To set up Android SDK, download and install Android Studio.
A data provider is a method used in TestNG to provide test data.
To perform a right click in a...
I applied via Company Website and was interviewed in Jun 2021. There were 3 interview rounds.
Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.
Inheritance allows code reuse and promotes code organization.
The existing class is called the parent or superclass, and the new class is called the child or subclass.
The child class inherits all the properties and methods of the parent class, and can also add new properties and methods.
Fo...
OOPs is a programming paradigm based on the concept of objects that interact with each other.
OOPs stands for Object-Oriented Programming.
It focuses on creating objects that have properties and methods.
Encapsulation, Inheritance, and Polymorphism are the three main pillars of OOPs.
Encapsulation is the process of hiding the internal details of an object from the outside world.
Inheritance allows a class to inherit propert...
A collection is a group of related objects or data items that can be accessed and manipulated in a unified way.
Collections are used to store and organize data in a program.
They can be of various types such as arrays, lists, sets, maps, etc.
Collections provide methods to add, remove, and access elements.
Examples include ArrayList, HashSet, TreeMap, etc.
throw is used to explicitly throw an exception in a method, while throws is used to declare the exceptions that a method may throw.
throw is used within a method to throw an exception when a certain condition is met
throws is used in the method signature to declare the exceptions that may be thrown by the method
throw is followed by an exception object, while throws is followed by the exception class names separated by co...
Checked exceptions are checked at compile-time, while unchecked exceptions are not.
Checked exceptions are declared in the method signature or caught using try-catch blocks.
Unchecked exceptions do not need to be declared or caught explicitly.
Checked exceptions are typically used for recoverable errors, while unchecked exceptions are used for unrecoverable errors.
Examples of checked exceptions include IOException and SQL...
To create an object, define a class and instantiate it using the 'new' keyword.
Define a class with properties and methods
Instantiate the class using the 'new' keyword
Access the object's properties and methods using dot notation
An interface is a contract that specifies the methods and properties that a class must implement.
An interface defines a set of methods and properties that a class must implement
Interfaces are used to achieve abstraction and polymorphism
Interfaces can be used to define contracts between different parts of a system
A class can implement multiple interfaces
Interfaces are declared using the 'interface' keyword in most progr
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 in the superclass.
Method overloading is compile-time polymorphism while method overriding is runtime polymorphism.
Method overloading is used to provide different ways of calling the same method with different parameters.
Method overriding is us...
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