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Forwarded from Java Resources TP
Master Java programming in 15 days with Free Resources πŸ˜„πŸ‘‡

Days 1-3: Getting Started
1. Day 1: Install Java Development Kit (JDK) on your computer and set up your development environment.
2. Day 2: Learn the basics of Java syntax, variables, data types, and how to write a simple "Hello, World!" program.
3. Day 3: Dive into Java's Object-Oriented Programming (OOP) concepts, including classes and objects.

Days 4-6: Control Flow and Data Structures
4. Day 4: Study control flow structures like if statements, loops (for, while), and switch statements.
5. Day 5: Learn about data structures such as arrays and ArrayLists for handling collections of data.
6. Day 6: Explore more advanced data structures like HashMaps and Sets.

Days 7-9: Methods and Functions
7. Day 7: Understand methods and functions in Java, including method parameters and return values.
8. Day 8: Learn about method overloading and overriding, as well as access modifiers.
9. Day 9: Practice creating and using methods in your Java programs.

Days 10-12: Exception Handling and File I/O
10. Day 10: Study exception handling to deal with runtime errors.
11. Day 11: Explore file input/output to read and write data to files.
12. Day 12: Combine exception handling and file I/O in practical applications.

Days 13-15: Advanced Topics and Projects
13. Day 13: Learn about Java's built-in libraries, such as the Collections framework and the java.util package.
14. Day 14: Explore graphical user interfaces (GUI) using Java Swing or JavaFX.
15. Day 15: Work on a Java project to apply what you've learned. Build a simple application or program of your choice.

Here you can find Java Programming Books & Notes for FREE: πŸ‘‡
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FREE RESOURCES TO LEARN JAVA

Introduction to Programming in Java (https://ocw.mit.edu/courses/6-092-introduction-to-programming-in-java-january-iap-2010/)

Java Tutorial for complete beginners (https://www.udemy.com/course/java-tutorial/)

Java Developer: Realistic Approach (https://t.me/javaresourcestp/39)

Java Project Ideas: (https://t.me/javaresourcestp/40)

Free Website to Practice Java (https://www.hackerrank.com/domains/java)

ENJOY LEARNINGπŸ‘πŸ‘

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Remote Senior Backend (Java & PHP) Engineer Job at Chess. com

Chess. com is hiring a remote Senior Backend (Java & PHP) Engineer. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

Chess. com - The world's largest chess community.

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HOW TO AVOID YOUR ADULT PROBELMS??

* Wake up early.
* Work out regularly.
* Eat good, real food.
* Live below your means.
* Find real friends with similar goals.
* Have more than 1 source of income.
* Do what you love for work
* Don't get into meaningless relationships.
* Stop hitting the snooze button.
* Create a routine.
* Write down a plan.

More Life Tips HereπŸ‘‡
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Struggling with Machine Learning algorithms? πŸ€–

Then you better stay with me! πŸ€“

We are going back to the basics to simplify ML algorithms.
... today's turn is Logistic Regression! πŸ‘‡πŸ»

1️⃣ π—Ÿπ—’π—šπ—œπ—¦π—§π—œπ—– π—₯π—˜π—šπ—₯π—˜π—¦π—¦π—œπ—’π—‘
It is a binary classification model used to classify our input data into two main categories.

It can be extended to multiple classifications... but today we'll focus on a binary one.

Also known as Simple Logistic Regression.

2️⃣ 𝗛𝗒π—ͺ 𝗧𝗒 π—–π—’π— π—£π—¨π—§π—˜ π—œπ—§?
The Sigmoid Function is our mathematical wand, turning numbers into neat probabilities between 0 and 1.

It's what makes Logistic Regression tick, giving us a clear 'probabilistic' picture.

3️⃣ 𝗛𝗒π—ͺ 𝗧𝗒 π——π—˜π—™π—œπ—‘π—˜ π—§π—›π—˜ π—•π—˜π—¦π—§ π—™π—œπ—§?
For every parametric ML algorithm, we need a LOSS FUNCTION.

It is our map to find our optimal solution or global minimum.

(hoping there is one! πŸ˜‰)

✚ 𝗕𝗒𝗑𝗨𝗦 - FROM LINEAR TO LOGISTIC REGRESSION
To obtain the sigmoid function, we can derive it from the Linear Regression equation.

Handling Imbalanced Data in ML: https://t.me/mlresourcestp/86

ENJOY LEARNINGπŸ‘πŸ‘

More Resources on this WhatsApp Channel
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Forwarded from SQL Resources TP
Here are SQL interview questions:

Basic SQL Questions

1.⁠ ⁠What is SQL, and what is its purpose?
2.⁠ ⁠Write a SQL query to retrieve all records from a table.
3.⁠ ⁠How do you select specific columns from a table?
4.⁠ ⁠What is the difference between WHERE and HAVING clauses?
5.⁠ ⁠How do you sort data in ascending/descending order?

SQL Query Questions

1.⁠ ⁠Write a SQL query to retrieve the top 10 records from a table based on a specific column.
2.⁠ ⁠How do you join two tables based on a common column?
3.⁠ ⁠Write a SQL query to retrieve data from multiple tables using subqueries.
4.⁠ ⁠How do you use aggregate functions (SUM, AVG, MAX, MIN)?
5.⁠ ⁠Write a SQL query to retrieve data from a table for a specific date range.

SQL Optimization Questions

1.⁠ ⁠How do you optimize SQL query performance?
2.⁠ ⁠What is indexing, and how does it improve query performance?
3.⁠ ⁠How do you avoid full table scans?
4.⁠ ⁠What is query caching, and how does it work?
5.⁠ ⁠How do you optimize SQL queries for large datasets?

SQL Joins and Subqueries

1.⁠ ⁠Explain the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN.
2.⁠ ⁠Write a SQL query to retrieve data from two tables using a subquery.
3.⁠ ⁠How do you use EXISTS and IN operators in SQL?
4.⁠ ⁠Write a SQL query to retrieve data from multiple tables using a self-join.
5.⁠ ⁠Explain the concept of correlated subqueries.

SQL Data Modeling

1.⁠ ⁠Explain the concept of normalization and denormalization.
2.⁠ ⁠How do you design a database schema for a given application?
3.⁠ ⁠What is data redundancy, and how do you avoid it?
4.⁠ ⁠Explain the concept of primary and foreign keys.
5.⁠ ⁠How do you handle data inconsistencies and anomalies?

SQL Advanced Questions

1.⁠ ⁠Explain the concept of window functions (ROW_NUMBER, RANK, etc.).
2.⁠ ⁠Write a SQL query to retrieve data using Common Table Expressions (CTEs).
3.⁠ ⁠How do you use dynamic SQL?
4.⁠ ⁠Explain the concept of stored procedures and functions.
5.⁠ ⁠Write a SQL query to retrieve data using pivot tables.

SQL Scenario-Based Questions

1.⁠ ⁠You have two tables, Orders and Customers. Write a SQL query to retrieve all orders for customers from a specific region.
2.⁠ ⁠You have a table with duplicate records. Write a SQL query to remove duplicates.
3.⁠ ⁠You have a table with missing values. Write a SQL query to replace missing values with a default value.
4.⁠ ⁠You have a table with data in an incorrect format. Write a SQL query to correct the format.
5.⁠ ⁠You have two tables with different data types for a common column. Write a SQL query to join the tables.

SQL Behavioral Questions

1.⁠ ⁠Can you explain a time when you optimized a slow-running SQL query?
2.⁠ ⁠How do you handle database errors and exceptions?
3.⁠ ⁠Can you describe a complex SQL query you wrote and why?
4.⁠ ⁠How do you stay up-to-date with new SQL features and best practices?
5.⁠ ⁠Can you walk me through your process for troubleshooting SQL issues?

Best Resources to learn SQL πŸ‘‡

SQL Topics for Data Analysts (https://t.me/sqlresourcestp/83)

Learn & Practice SQL (https://bit.ly/4kNb15x)

SQL Udacity Course (https://udacity.com/course/sql-for-data-analysis--ud198)

Download SQL Cheatsheet (https://t.me/sqlresourcestp/4)

Also try to apply what you learn through hands-on projects or challenges.

ENJOY LEARNING πŸ‘πŸ‘

More Resources Here
https://whatsapp.com/channel/0029VahGttK5a24AXAJDjm2R

Like this post if you need more πŸ‘β€οΈ

Hope it helps :)
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Eric Schmidt says the arrival of AGI and Superintelligence will be the most important event in 500, maybe even 1,000 years of human history.

πŸ”† t.me/techpsyche
Choosing the right cryptocurrency exchange is crucial for a safe and efficient trading experience. Here are some factors to consider:

1. Security:
- Prioritize exchanges with a strong security track record, including features like two-factor authentication (2FA) and cold storage for the majority of funds.

2. Reputation:
- Research the exchange's reputation by reading user reviews, checking online forums, and assessing how long it has been in operation.

3. Supported Cryptocurrencies:
- Ensure the exchange supports the specific cryptocurrencies you want to trade or invest in. Not all exchanges list the same range of coins.

4. Fees:
- Compare trading fees, withdrawal fees, and any other charges. Some exchanges offer fee discounts based on trading volume or membership levels.

5. User Interface:
- Choose an exchange with an intuitive and user-friendly interface, especially if you are a beginner. A clean design can enhance your overall trading experience.

6. Liquidity:
- Higher liquidity generally means better price stability and faster execution of trades. Check the trading volume of the exchange and the specific cryptocurrency pairs you're interested in.

7. Geographic Restrictions:
- Be aware of any geographical restrictions imposed by the exchange. Ensure it operates in your country and complies with local regulations.

8. Regulatory Compliance:
- Verify that the exchange complies with relevant regulations in your jurisdiction. This adds an extra layer of security and legal protection.

9. Customer Support:
- Look for exchanges with responsive customer support. Issues may arise, and having a reliable support system is crucial for quick resolutions.

10. Deposit and Withdrawal Methods:
- Check the available deposit and withdrawal methods. Some exchanges support fiat currency deposits, while others may require you to trade using other cryptocurrencies.

11. Mobile App:
- If you prefer trading on the go, consider whether the exchange offers a mobile app with essential features for convenient trading.

12. Educational Resources:
- Some exchanges provide educational resources and tutorials. This can be beneficial, especially for beginners who want to learn more about trading and cryptocurrencies.

13. Insurance Coverage:
- Verify if the exchange has insurance coverage for potential losses due to hacks or breaches. This can provide an added layer of protection for users.

Always conduct thorough research before choosing an exchange, and consider starting with a smaller investment until you become familiar with the platform. Additionally, regularly review your chosen exchange's security features and stay informed about any updates or changes in policies.

Signs of Bearish Trend in Crypto: https://t.me/techpsyche/739

Non-Recourse Loans in Crypto: https://t.me/techpsyche/756

Funding in Crypto Trading: https://t.me/techpsyche/766

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#crypto #web3 #blockchain #finance #stocks
Visa & Mastercard are enabling Bitcoin and stablecoin spending with new cards from AQUA & MoonPay (150M+ merchants) 🌊

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Remote Web3 Content Creator/Ghost Writer Job at Imperator. co

Benefits
- $20 to +$100 per article (depending on length)
- Work from anywhere in the world.
- Flexible working schedule.
- Annual bonus.
- Enhance your portfolio with diverse and impactful content.

Apply Here:
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SHARE WITH YOUR FRIENDSπŸ₯³πŸ₯³
Free PHP Courses for Web Developer πŸ‘¨β€πŸ’»πŸ€©πŸš€

1. Practical PHP: Master the Basics and Code Dynamic Websites

πŸ‘‰ https://www.udemy.com/course/code-dynamic-websites

2. Beginner PHP and MySQL Tutorial

πŸ‘‰ https://www.udemy.com/course/php-mysql-tutorial

3. PHP & MySQL course for absolute beginners | Become a PHP pro

πŸ‘‰ https://www.udemy.com/course/php-mysql-course-for-absolute-beginners

4. PHP For WordPress Development

πŸ‘‰ https://www.udemy.com/course/php-for-wordpress-development

5. PHP tutorial for beginners

πŸ‘‰ https://www.udemy.com/course/php-tutorial-for-beginners-j

6. Free Udemy Courses Here

πŸ‘‰ https://t.me/udemycoursecouponsfree

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Best career advice l've heard today

Don't ever attach yourself to a person, a place, a company, an organization, or a project.

Attach yourself to a mission, a calling, a purpose only.

That's how you keep your power & your peace.

πŸ”† t.me/techpsyche
Windsurf launched SWE-1, its first family of AI models designed for complete software engineering workflows.

The three models were trained on incomplete states and multi-surface interactions, claiming competitive performance with Claude 3.5 Sonnet.

πŸ”† t.me/techpsyche
πŸ‘ΆBeginner in CYBERSECURITY?

Are you just starting your journey in CYBERSECURITY? Here's a comprehensive list of resources to help you get started:

πŸŽ“ FOUNDATION CERTIFICATIONS
- CompTIA A+
- CompTIA Network+
- CompTIA Security+

πŸ’‘ SKILLS TO DEVELOP
- Packet Analysis
- Linux
- Python
- Active Directory

πŸ›  HANDY TOOLS
- Splunk
- Nessus
- Nmap
- Pfsense
- IDS/IPS
- Wireshark

These resources will provide you with a solid foundation in cybersecurity and equip you with the knowledge and skills to excel in this field. Good luck on your journey! πŸ”πŸ’»πŸŒ

Cyber Security Resources Here πŸ‘‡
https://t.me/zerotrusthackers

WhatsApp Channel:
https://whatsapp.com/channel/0029VaxVv551iUxRku094918
Remote Bug Bounty Security Researcher Job at Inspectiv

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Remote Junior Mobile/Web Security Tester Job at Access Softek

Required Skills
- Experience with Pentesting
- Understanding of Web & Mobile Apps
- Familiarity with Common Security Tools
- Understanding of OWASP Top 10 or MASVS is a plus
- Basic Scripting Knowledge (Python, Bash or JavaScript)

Benefits
* Fully remote work.
* Home office equipment, if necessary.
* Internet compensation (50$ per month).
* Long-term employment.
* Paid vacation and days off on national holidays.
* Paid sick leave and internal medical insurance policy.

Apply Here:
https://kenyatrends.co.ke/cq2p

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SHARE WITH YOUR FRIENDSπŸ₯³πŸ₯³
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Let's Talk About Google I/O 2025 Keynote