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*Google appoints Preeti Lobana* as new India head
Google has appointed Preeti Lobana as its India head, filling the role left vacant since July. Formerly VP of advertising technology at Google, she takes charge as the company advances AI initiatives in India amid increasing regulatory challenges. India remains a key market, but Google faces antitrust scrutiny over Android and Google Play policies. Lobana replaces interim chief Roma Datta Chobey, who is returning to lead the digital business unit.
Age of Programming Languages๐Ÿ‘จ๐Ÿปโ€๐Ÿ’ป

๐Ÿฆ… Swift (10 years old) (2014)
๐Ÿ”ท TypeScript (11 years old) (2012)
๐Ÿš€ Kotlin (12 years old) (2011)
๐ŸŽฏ Dart (13 years old (2011)
๐Ÿฆ€ Rust (13 years old) (2010)
๐Ÿน Go (14 years old) (2009)
๐ŸŽธ C# (23 years old) (2000)
๐Ÿ’Ž Ruby (28 years old) (1995)
โ˜• Java (28 years old) (1995)
๐ŸŒ JavaScript (28 years old) (1995)
๐Ÿ˜ PHP (29 years old) (1994)
๐Ÿ Python (33 years old) (1991)
๐Ÿช Perl (36 years old) (1987)
๐Ÿš€ C++ (38 years old) (1985)
๐Ÿ“ฑ Objective-C (39 years old) (1984)
๐Ÿ” Prolog (51 years old) (1972)
๐Ÿ—ฃ๏ธ Smalltalk (51 years old) (1972)
๐Ÿ–ฅ๏ธ C (51 years old) (1972)
๐Ÿ“ Pascal (53 years old) (1970)
๐ŸŽ“ BASIC (59 years old) (1964)
๐Ÿ’ผ COBOL (64 years old) (1959)
๐Ÿค– Lisp (65 years old) (1958)
๐Ÿ“œ Fortran (66 years old) (1957)
Typical java interview questions sorted by experience


Junior
* Name some of the characteristics of OO programming languages
* What are the access modifiers you know? What does each one do?
* What is the difference between overriding and overloading a method in Java?
* Whatโ€™s the difference between an Interface and an abstract class?
* Can an Interface extend another Interface?
* What does the static word mean in Java?
* Can a static method be overridden in Java?
* What is Polymorphism? What about Inheritance?
* Can a constructor be inherited?
* Do objects get passed by reference or value in Java? Elaborate on that.
* Whatโ€™s the difference between using == and .equals on a string?
* What is the hashCode() and equals() used for?
* What does the interface Serializable do? What about Parcelable in Android?
* Why are Array and ArrayList different? When would you use each?
* Whatโ€™s the difference between an Integer and int?
* What is a ThreadPool? Is it better than using several โ€œsimpleโ€ threads?
* What the difference between local, instance and class variables?

Mid
* What is reflection?
* What is dependency injection? Can you name a few libraries? (Have you used any?)
* What are strong, soft and weak references in Java?
* What does the keyword synchronized mean?
* Can you have โ€œmemory leaksโ€ on Java?
* Do you need to set references to null on Java/Android?
* What does it means to say that a String is immutable?
* What are transient and volatile modifiers?
* What is the finalize() method?
* How does the try{} finally{} works?
* What is the difference between instantiation and initialisation of an object?
* When is a static block run?
* Why are Generics are used in Java?
* Can you mention the design patterns you know? Which of those do you normally use?
* Can you mention some types of testing you know?

Senior
* How does Integer.parseInt() works?
* Do you know what is the โ€œdouble check lockingโ€ problem?
* Do you know the difference between StringBuffer and StringBuilder?
* How is a StringBuilder implemented to avoid the immutable string allocation problem?
* What does Class.forName method do?
* What is Autoboxing and Unboxing?
* Whatโ€™s the difference between an Enumeration and an Iterator?
* What is the difference between fail-fast and fail safe in Java?
* What is PermGen in Java?
* What is a Java priority queue?
* *s performance influenced by using the same number in different types: Int, Double and Float?
* What is the Java Heap?
* What is daemon thread?
* Can a dead thread be restarted?
Placement resources : https://shorturl.at/HpEnw

Source: medium.
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James Gustav Speth, a leading environmentalist and founder of the Natural Resources Defense Council (NRDC) and the World Resources Institute (WRI), has expressed profound insights regarding global environmental issues. He initially believed that the major problems facing the environment were biodiversity loss, ecosystem collapse, and climate change. With 30 years of solid science, he thought solutions could be found. However, he realized that the biggest environmental challenges stem from selfishness, greed, and indifference. Addressing these issues requires spiritual and cultural transformation, a realm where science has yet to provide guidance.

Speth emphasizes that there is currently no technical solution to climate change; rather, it demands a spiritual solution. He advocates for making climate change a topic of discussion in every neighborhood and a concern for every aware citizen. For significant issues to find their rightful place in our lives, a transformation of values and an internal revolution are essential.

In India and globally, few voices are as prominent as Acharya Prashant's, who speaks about the spiritual solutions to climate change. He is engaged in efforts that neither the media, schools, colleges, nor governments are addressing. His message has reached millions, fostering awareness and change. However, the task is monumental, and there is an urgent need to reach out to others, to educate and save everyone. This work is not easy and requires substantial resources.
1. Core Java Concepts
a. What is the difference between == and equals() method in Java?
b. Explain the concept of immutability. How is String class immutable?
c. How does garbage collection work in Java? What are different garbage collectors?
d. What are the different types of memory areas allocated by JVM?
e. How does hashCode() and equals() work?
f. What is the significance of final, finally, and finalize() in Java?
g. What is volatile keyword in Java?
h. What is the difference between HashMap and ConcurrentHashMap?

Handwritten Resources :
https://topmate.io/sumit_kumar80/1149505
๐Ÿ”– Perplexity Launches FREE Training Program for AI Enthusiasts

As part of the program, participants will enjoy monthly meetings with the company's leadership, involvement in the creation of marketing strategies, and a free subscription to Perplexity Pro with exclusive access to new features.

Do you want to avoid being left behind in our fast-changing world? Make sure to sign up by December 28โ€”top students will be rewarded with a trip to Perplexity's headquarters in San Francisco! โœˆ๏ธ

@Skynet_Dreams
SQL, or Structured Query Language, is a domain-specific language used to manage and manipulate relational databases. Here's a brief A-Z overview by @TechAndEvents

A - Aggregate Functions: Functions like COUNT, SUM, AVG, MIN, and MAX used to perform operations on data in a database.

B - BETWEEN: A SQL operator used to filter results within a specific range.

C - CREATE TABLE: SQL statement for creating a new table in a database.

D - DELETE: SQL statement used to delete records from a table.

E - EXISTS: SQL operator used in a subquery to test if a specified condition exists.

F - FOREIGN KEY: A field in a database table that is a primary key in another table, establishing a link between the two tables.

G - GROUP BY: SQL clause used to group rows that have the same values in specified columns.

H - HAVING: SQL clause used in combination with GROUP BY to filter the results.

I - INNER JOIN: SQL clause used to combine rows from two or more tables based on a related column between them.

J - JOIN: Combines rows from two or more tables based on a related column.

K - KEY: A field or set of fields in a database table that uniquely identifies each record.

L - LIKE: SQL operator used in a WHERE clause to search for a specified pattern in a column.

M - MODIFY: SQL command used to modify an existing database table.

N - NULL: Represents missing or undefined data in a database.

O - ORDER BY: SQL clause used to sort the result set in ascending or descending order.

P - PRIMARY KEY: A field in a table that uniquely identifies each record in that table.

Q - QUERY: A request for data from a database using SQL.

R - ROLLBACK: SQL command used to undo transactions that have not been saved to the database.

S - SELECT: SQL statement used to query the database and retrieve data.

T - TRUNCATE: SQL command used to delete all records from a table without logging individual row deletions.

U - UPDATE: SQL statement used to modify the existing records in a table.

V - VIEW: A virtual table based on the result of a SELECT query.

W - WHERE: SQL clause used to filter the results of a query based on a specified condition.

X - (E)XISTS: Used in conjunction with SELECT to test the existence of rows returned by a subquery.

Z - ZERO: Represents the absence of a value in numeric fields or the initial state of boolean fields.

Here you can find essential SQL Interview Resources๐Ÿ‘‡
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Like this post if you need more ๐Ÿ‘โค๏ธ

Hope it helps :)
๐Ÿ”ช Once, American Airlines experienced a technical glitch that allowed passengers to buy a ticket from London to New York for ยฃ100 instead of six and a half thousand. Dozens of media outlets and over 2000 bloggers wrote about the blunder.

This caught the attention of a Broadway producer who "made a mistake" in pricing for a new production. He "forgot" to add a zero, and some tickets were sold for ten times less. This resulted in a loss of a hundred thousand and three thousand posts from people sharing how they "beat the system." Interestingly, the show was most appreciated by those looking for a bargain. In the following two seasons, there was no need to spend anything on advertising.

"I offered a discount and increased the perceived value of the product," Ken Davenport recounted in an interview. "This wonโ€™t work many times, but it lasted me a couple of years."

So, if you want viral marketingโ€”give your customers the chance to "beat the system."

@Skynet_Dreams
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Comment ๐Ÿ‘‡๐Ÿป
๐Ÿฅ‡ Product of the Day

Lambda is a platform for investment portfolio analysis that combines in-depth financial analytics at the level of professional funds with an intuitive interface. It is important to note that Lambda does not provide direct investment advice; instead, the service assists you in conducting a thorough analysis, much like how experienced analysts operate.

Here are some interesting features offered by Lambda:

โœ”๏ธ Portfolio Analysis โ€” you can compare your returns with the S&P 500 index, explore dividends, and review asset distribution across sectors.

โœ”๏ธ Optimization โ€” models are available to help identify optimal stock allocation strategies that minimize risk and maximize returns. You can simulate various scenarios, such as "what would happen in the event of a crisis similar to the 2008 financial crisis?".

โœ”๏ธ AI Chat โ€” you can interact with a chat bot that provides graphs and tables directly within the conversation. You can filter stocks based on various criteria.

If you are a beginner investor, Lambda will guide you on where to dig deeper. If you are an experienced investor, the platform will simply save you time.

@Skynet_Dreams
1. Core Java Concepts
a. What is the difference between == and equals() method in Java?
b. Explain the concept of immutability. How is String class immutable?
c. How does garbage collection work in Java? What are different garbage collectors?
d. What are the different types of memory areas allocated by JVM?
e. How does hashCode() and equals() work?
f. What is the significance of final, finally, and finalize() in Java?
g. What is volatile keyword in Java?
h. What is the difference between HashMap and ConcurrentHashMap?

Handwritten Resources :
https://topmate.io/sumit_kumar80/1149505
Here are 10 popular programming languages based on versatile, widely-used, and in-demand languages:
1. Python โ€“ Ideal for beginners and professionals; used in web development, data analysis, AI, and more.

2. Java โ€“ A classic language for building enterprise applications, Android apps, and large-scale systems.

3. C โ€“ The foundation for many other languages; great for understanding low-level programming concepts.

4. C++ โ€“ Popular for game development, competitive programming, and performance-critical applications.

5. C# โ€“ Widely used for Windows applications, game development (Unity), and enterprise software.

6. Go (Golang) โ€“ A modern language designed for performance and scalability, popular in cloud services.

7. Rust โ€“ Known for its safety and performance, ideal for system-level programming.

8. Kotlin โ€“ The preferred language for Android development with modern features.

9. Swift โ€“ Used for developing iOS and macOS applications with simplicity and power.

10. PHP โ€“ A staple for web development, powering many websites and applications.

Best placement resources:
https://shorturl.at/HpEnw
Quick Placement Interview Tips

1. Research the Company: Know their values and recent news.
2. Practice Common Questions: Prepare for questions like "Tell me about yourself."
3. Showcase Skills: Use specific examples from projects or internships.
4. Prepare Questions: Ask insightful questions about the company.
5. Follow Up: Send a thank-you email after the interview.

For Best resources, check out: https://shorturl.at/HpEnw

Good luck! You can do it!
๐ŸŒŸ Top 10 Java Frameworks You Should Know ๐ŸŒŸ

Hereโ€™s a quick guide to the most popular Java frameworks every developer should explore:

1๏ธโƒฃ Spring: A powerful, versatile framework for building web applications and enterprise-level projects.

2๏ธโƒฃ Hibernate: Simplifies database operations with its ORM (Object Relational Mapping) capabilities.

3๏ธโƒฃ Struts: Ideal for creating scalable and maintainable enterprise-ready Java web applications.

4๏ธโƒฃ Google Web Toolkit (GWT): Perfect for creating complex browser-based applications, especially with Java-to-JavaScript compilation.

5๏ธโƒฃ JavaServer Faces (JSF): Simplifies web app development by connecting UI components to server-side data.

6๏ธโƒฃ Grails: A Groovy-based framework designed for simplifying Java app development.

7๏ธโƒฃ Vaadin: Focuses on modern web application development with an appealing UI and seamless integration.

8๏ธโƒฃ Blade: A lightweight and high-performance framework for building fast REST APIs.

9๏ธโƒฃ Dropwizard: Combines libraries to quickly create reliable, production-ready applications.

๐Ÿ”Ÿ Play: A reactive web application framework that supports both Java and Scala.

๐Ÿ’ก Explore these frameworks to stay ahead in your Java development journey! ๐Ÿš€

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Forwarded from Acharya Prashant
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Doesn't require any login Infact you can upload your pdf๐Ÿ“‚ documents to ask answer best site for students who were looking for chat gpt 4 now enjoy it
๐—›๐—ผ๐˜„ ๐˜๐—ผ ๐—ฐ๐—ผ๐—ฑ๐—ฒ ๐˜„๐—ถ๐˜๐—ต ๐—š๐—ถ๐˜๐—›๐˜‚๐—ฏ ๐—–๐—ผ๐—ฝ๐—ถ๐—น๐—ผ๐˜?

A recent study by GitHub and Microsoft discovered that AI now authors 46% of new code. They also found that overall developer productivity surged by 55%, leading to more efficient coding processes. When we talk about AI-powered coding, we mainly talk about GitHub Copilot.

But ๐—ต๐—ผ๐˜„ ๐—š๐—ถ๐˜๐—›๐˜‚๐—ฏ ๐—–๐—ผ๐—ฝ๐—ถ๐—น๐—ผ๐˜ ๐˜„๐—ผ๐—ฟ๐—ธ๐˜€?

The process goes in the following steps:

๐Ÿญ. ๐—ฆ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐—ฒ ๐—ฝ๐—ฟ๐—ผ๐—บ๐—ฝ๐˜ ๐˜๐—ฟ๐—ฎ๐—ป๐˜€๐—บ๐—ถ๐˜€๐˜€๐—ถ๐—ผ๐—ป: Your prompts are securely sent to Copilot, ensuring data privacy.

๐Ÿฎ. ๐—–๐—ผ๐—ป๐˜๐—ฒ๐˜…๐˜๐˜‚๐—ฎ๐—น ๐˜‚๐—ป๐—ฑ๐—ฒ๐—ฟ๐˜€๐˜๐—ฎ๐—ป๐—ฑ๐—ถ๐—ป๐—ด: Copilot analyzes the code around your cursor, the file type, and other open files to offer relevant suggestions.

๐Ÿฏ. ๐—–๐—ผ๐—ป๐˜๐—ฒ๐—ป๐˜ ๐—ณ๐—ถ๐—น๐˜๐—ฒ๐—ฟ๐—ถ๐—ป๐—ด: It filters out personal data and inappropriate content, focusing solely on generating helpful code.

๐Ÿฐ. ๐—–๐—ผ๐—ฑ๐—ฒ ๐—ด๐—ฒ๐—ป๐—ฒ๐—ฟ๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Based on the intent identified in your prompts, Copilot crafts code suggestions that align with your coding style and project standards.

๐Ÿฑ. ๐—จ๐˜€๐—ฒ๐—ฟ ๐—ถ๐—ป๐˜๐—ฒ๐—ฟ๐—ฎ๐—ฐ๐˜๐—ถ๐—ผ๐—ป: Here, we can decide whether to use, tweak, or reject Copilot's suggestions.

๐Ÿฒ. ๐—™๐—ฒ๐—ฒ๐—ฑ๐—ฏ๐—ฎ๐—ฐ๐—ธ ๐—น๐—ผ๐—ผ๐—ฝ: Copilot learns from your interactions, improving its suggestions. Every time you tweak or reject its ideas, he knows from it. It employs techniques like zero-shot (asking without examples), one-shot (asking with an example), and few-shot learning (providing multiple examples) to adapt to our instructions, whether you provide examples or not.

๐Ÿณ. ๐—ฃ๐—ฟ๐—ผ๐—บ๐—ฝ๐˜ ๐—ต๐—ถ๐˜€๐˜๐—ผ๐—ฟ๐˜† ๐—ฟ๐—ฒ๐˜๐—ฒ๐—ป๐˜๐—ถ๐—ผ๐—ป: It remembers past prompts and interactions, making future suggestions more accurate.