Java Programming
27.9K subscribers
393 photos
174 files
247 links
Everything you need to learn Java Programming

Daily Java tutorials, coding challenges, OOP concepts, DSA in Java & more!
Perfect for beginners, CS students & job seekers.

Downloadable PDFs, cheat sheets, interview prep & projects

For ads: @coderfun
Download Telegram
๐—›๐—ถ๐—ฑ๐—ฑ๐—ฒ๐—ป ๐—š๐—ฒ๐—บ ๐—ณ๐—ผ๐—ฟ ๐—™๐—ฟ๐—ฒ๐—ฒ ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐—ณ๐—ฟ๐—ผ๐—บ ๐— ๐—œ๐—ง, ๐—›๐—ฎ๐—ฟ๐˜ƒ๐—ฎ๐—ฟ๐—ฑ & ๐—ฆ๐˜๐—ฎ๐—ป๐—ณ๐—ผ๐—ฟ๐—ฑ!๐Ÿ˜

Still searching for quality learning resources?๐Ÿ“š

What if I told you thereโ€™s a platform offering free full-length courses from top universities like MIT, Stanford, and Harvard โ€” and most people have never even heard of it? ๐Ÿคฏ

๐—Ÿ๐—ถ๐—ป๐—ธ๐˜€:-๐Ÿ‘‡

https://pdlink.in/4lN7aF1

Donโ€™t skip this chanceโœ…๏ธ
โค2๐Ÿ”ฅ1
Soft skills questions will be part of your next data job interview!

Here is what you should prepare for:

1. ๐—–๐—ผ๐—บ๐—บ๐˜‚๐—ป๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Be ready to discuss how you explain complex data insights to non-technical stakeholders.

๐˜Œ๐˜น๐˜ข๐˜ฎ๐˜ฑ๐˜ญ๐˜ฆ ๐˜ฒ๐˜ถ๐˜ฆ๐˜ด๐˜ต๐˜ช๐˜ฐ๐˜ฏ:
โ€œHow do you ensure that your data insights are understood and get used by non-technical stakeholders?โ€

2. ๐—ง๐—ฒ๐—ฎ๐—บ ๐—–๐—ผ๐—น๐—น๐—ฎ๐—ฏ๐—ผ๐—ฟ๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Show your ability to work well with others.

๐˜Œ๐˜น๐˜ข๐˜ฎ๐˜ฑ๐˜ญ๐˜ฆ ๐˜ฒ๐˜ถ๐˜ฆ๐˜ด๐˜ต๐˜ช๐˜ฐ๐˜ฏ:
โ€œCan you talk about a time when you had to manage a conflict within a team? How did you resolve it?โ€

3. ๐—ฃ๐—ฟ๐—ผ๐—ฏ๐—น๐—ฒ๐—บ-๐—ฆ๐—ผ๐—น๐˜ƒ๐—ถ๐—ป๐—ด: Highlight your critical thinking and problem-solving skills.

๐˜Œ๐˜น๐˜ข๐˜ฎ๐˜ฑ๐˜ญ๐˜ฆ ๐˜ฒ๐˜ถ๐˜ฆ๐˜ด๐˜ต๐˜ช๐˜ฐ๐˜ฏ:
โ€œDescribe a situation where you had to make a quick decision based on incomplete data. What was the outcome?โ€

4. ๐—”๐—ฑ๐—ฎ๐—ฝ๐˜๐—ฎ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐˜†: Demonstrate your flexibility and openness to change.

๐˜Œ๐˜น๐˜ข๐˜ฎ๐˜ฑ๐˜ญ๐˜ฆ ๐˜ฒ๐˜ถ๐˜ฆ๐˜ด๐˜ต๐˜ช๐˜ฐ๐˜ฏ:
โ€œHow do you handle sudden changes in project priorities or scope?โ€

5. ๐—ง๐—ถ๐—บ๐—ฒ ๐— ๐—ฎ๐—ป๐—ฎ๐—ด๐—ฒ๐—บ๐—ฒ๐—ป๐˜: Prove your ability to manage multiple tasks and deadlines.

๐˜Œ๐˜น๐˜ข๐˜ฎ๐˜ฑ๐˜ญ๐˜ฆ ๐˜ฒ๐˜ถ๐˜ฆ๐˜ด๐˜ต๐˜ช๐˜ฐ๐˜ฏ:
โ€œTell me about a time when you were under tight deadlines. How did you manage to meet them?โ€

6. ๐—˜๐—บ๐—ฝ๐—ฎ๐˜๐—ต๐˜† ๐—ฎ๐—ป๐—ฑ ๐—จ๐—ป๐—ฑ๐—ฒ๐—ฟ๐˜€๐˜๐—ฎ๐—ป๐—ฑ๐—ถ๐—ป๐—ด: Show your ability to understand stakeholder needs.

๐˜Œ๐˜น๐˜ข๐˜ฎ๐˜ฑ๐˜ญ๐˜ฆ ๐˜ฒ๐˜ถ๐˜ฆ๐˜ด๐˜ต๐˜ช๐˜ฐ๐˜ฏ:
โ€œHow do you approach understanding the needs of different stakeholders when starting a new project?โ€


Structure your answers using the STAR method (Situation, Task, Action, Result). This helps you provide clear and concise responses that highlight your skills.

By preparing for these soft skills questions, youโ€™ll demonstrate that youโ€™re not just technically fit, but also a well-rounded professional ready to make an impact on the business.

You can find useful tips to improve your soft skills here: ๐Ÿ‘‡ https://t.me/englishlearnerspro/
โค2๐Ÿ”ฅ1
๐Ÿฏ ๐—™๐—ฅ๐—˜๐—˜ ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐˜๐—ผ ๐—ฆ๐˜๐—ฎ๐—ฟ๐˜ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐—–๐—ฎ๐—ฟ๐—ฒ๐—ฒ๐—ฟ ๐—ถ๐—ป ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฑ!๐Ÿ˜

Want to break into Data Analytics but donโ€™t know where to start? ๐Ÿค”

These 3 beginner-friendly and 100% FREE courses will help you build real skills โ€” no degree required!๐Ÿ‘จโ€๐ŸŽ“

๐—Ÿ๐—ถ๐—ป๐—ธ:-๐Ÿ‘‡

https://pdlink.in/3IohnJO

No confusion, no fluff โ€” just pure valueโœ…๏ธ
Python Data Types ๐Ÿ‘†
โค5๐Ÿ”ฅ1
Java Basic to Advance programes.pdf
1.4 MB
Java Basic to Advance programes ๐Ÿง‘โ€๐Ÿ’ป

React โค๏ธ for more
โค9
๐Ÿฒ ๐—ฅ๐—ฒ๐—ฎ๐—น-๐—ช๐—ผ๐—ฟ๐—น๐—ฑ ๐—ฆ๐—ค๐—Ÿ ๐—ฃ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜๐˜€ ๐˜๐—ผ ๐—•๐—ผ๐—ผ๐˜€๐˜ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐—ฃ๐—ผ๐—ฟ๐˜๐—ณ๐—ผ๐—น๐—ถ๐—ผ (๐—™๐—ฅ๐—˜๐—˜ ๐——๐—ฎ๐˜๐—ฎ๐˜€๐—ฒ๐˜๐˜€!)๐Ÿ˜

๐ŸŽฏ Want to level up your SQL skills with real business scenarios?๐Ÿ“š

These 6 hands-on SQL projects will help you go beyond basic SELECT queries and practice what hiring managers actually care about๐Ÿ‘จโ€๐Ÿ’ป๐Ÿ“Œ

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/40kF1x0

Save this post โ€” even completing 1 project can power up your SQL profile!โœ…๏ธ
โค1
List of topics you need to cover if you're preparing for Java Interviews based on current Job market:

1. Core Java Fundamentals (Refer to already posted topics)
2. Advanced Java
- Design Patterns
- Multithreading
- Java Memory Model
- Performance Optimization
- Reflection & Dynamic Proxies
3. Spring Framework
- Spring core concepts
- Spring boot
- Spring Data JPA
- Spring Security
- Spring cloud
- Spring webflux
4. Hibernate
5. Testing (JUnit, Mockito, Integration, Functional, Performance Testing)
6. Build Tools (Maven / Gradle)
7. Logging
8. RDBMS, NoSQL DBs
9. WebSecurity Concepts
10. REST API concepts
11. CI/CD (Jenkins, GitHub Actions)
12. Containerization (Docker, Kubernetes)
13. Version Control (GitHub)
14. Monitoring (Grafana, ELK Stack etc)
15. Cloud (AWS, Azure, GCP (Very rare) )
16. Spring boot microservices
16. Messaging systems
17. Caching Strategies
18. System Design
19. Data Structures
20. Algorithms
21. Agile Methodologies
22. Behavioral questions
โค4๐Ÿ”ฅ1
๐Ÿ† โ€“ Java Developer

Stage 1 โ€“ Java Basics (Syntax, Data Types, Variables)
Stage 2 โ€“ Object-Oriented Programming (OOP)
Stage 3 โ€“ Exception Handling
Stage 4 โ€“ Java Collections Framework
Stage 5 โ€“ File I/O
Stage 6 โ€“ Multithreading and Concurrency
Stage 7 โ€“ Java Streams and Lambda Expressions
Stage 8 โ€“ JDBC
Stage 9 โ€“ Servlets and JSP
Stage 10 โ€“ Spring Framework Basics
Stage 11 โ€“ Spring Boot
Stage 12 โ€“ RESTful APIs with Spring
Stage 13 โ€“ Testing
Stage 14 โ€“ Deployment
Stage 15 โ€“ Build projects
โค4๐Ÿ‘4
Forwarded from Artificial Intelligence
๐Ÿฒ ๐—™๐—ฟ๐—ฒ๐—ฒ ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐˜๐—ผ ๐—ฆ๐˜๐—ฎ๐—ฟ๐˜ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ & ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐—๐—ผ๐˜‚๐—ฟ๐—ป๐—ฒ๐˜†๐Ÿ˜

Want to break into Data Science & Analytics but donโ€™t want to spend on expensive courses?๐Ÿ‘จโ€๐Ÿ’ป

Start here โ€” with 100% FREE courses from Cisco, IBM, Google & LinkedIn, all with certificates you can showcase on LinkedIn or your resume!๐Ÿ“š๐Ÿ“Œ

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/3Ix2oxd

This list will set you up with real-world, job-ready skillsโœ…๏ธ
โค2
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?

Source: medium.
โค3๐Ÿ”ฅ1
๐—–๐—ฟ๐—ฎ๐—ฐ๐—ธ ๐—™๐—”๐—”๐—ก๐—š ๐—œ๐—ป๐˜๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฒ๐˜„๐˜€ ๐—ถ๐—ป ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฑ โ€” ๐—ณ๐—ผ๐—ฟ ๐—™๐—ฅ๐—˜๐—˜!๐Ÿ˜

If youโ€™re serious about cracking top tech interviews โ€” from FAANG to startups โ€” this is the roadmap you canโ€™t afford to miss๐ŸŽŠ

Thousands have used it to land roles at Google, Amazon, Microsoft, and more โ€” completely free๐Ÿคฉ๐Ÿ“Œ

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/3TJlpyW

Your dream job might just start here.โœ…๏ธ
โค2