How to protect registration webpage from spam Using CAPTCHA & mathematical question
Using CAPTCHA to Block Spam and Bots On Your Website add a simple mathematical question (ex: 5+2) to stop the spam
https://youtu.be/HsOTbn2xpRM
Using CAPTCHA to Block Spam and Bots On Your Website add a simple mathematical question (ex: 5+2) to stop the spam
https://youtu.be/HsOTbn2xpRM
YouTube
How to protect registration webpage from spam Using CAPTCHA & Math Queries Secure Registration Forms
How to Prevent Spam Registration in ASP.NET C# How to stop spam bots from submitting your form add a simple mathematical question (ex: 5+2) to stop the spam
Join us in exploring the dynamic duo of CAPTCHA and Math challenges as formidable weapons against…
Join us in exploring the dynamic duo of CAPTCHA and Math challenges as formidable weapons against…
Asp.net MVC Tutorial:
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Asp.net C# webform Tutorial:
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Complete Library Project:
https://www.youtube.com/playlist?list=PLMoluEXvWXK7iAOcTw4AndY-ZwIOKlKZP
Shopping Website:
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SQL Server:
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Python:
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https://www.youtube.com/playlist?list=PLMoluEXvWXK5OxieFW5ogrkdeMp9GgaYv
Asp.net C# webform Tutorial:
https://www.youtube.com/playlist?list=PLMoluEXvWXK6Q1h-5vVX4tzX7-O2FdgZA
Complete Library Project:
https://www.youtube.com/playlist?list=PLMoluEXvWXK7iAOcTw4AndY-ZwIOKlKZP
Shopping Website:
https://www.youtube.com/playlist?list=PLMoluEXvWXK4cAOkQmnNguk4O5vx84oQ4
SQL Server:
https://www.youtube.com/playlist?list=PLMoluEXvWXK4B35oqCvC8iLq-E-7EV9Mg
Python:
https://www.youtube.com/playlist?list=PLMoluEXvWXK4Ji15P81Dcixl14QytPSWq
YouTube
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Hello Connections,
This post is tailored for Java Developers with 2 to 4 years of experience who are preparing for interviews. Below are key questions that are frequently asked:
1. How does HashMap work internally?
2. Can you explain the internal workings of HashSet?
3. What are the key differences between List and Set?
4. Differentiate between Fail-Fast and Fail-Safe iterators.
5. Explain the distinctions between HashMap and ConcurrentHashMap.
6. How do you handle ConcurrentModificationException?
7. Enumerate the different levels of JVM memory.
8. What role does a Class Loader play in Java?
9. Define and differentiate Abstraction and Interface.
10. Do abstract classes have constructors?
11. Explain the SOLID principles in object-oriented design.
12. What are the fundamental concepts of Object-Oriented Programming (OOP)?
13. List some features introduced in Java 8.
14. Define Stream API in Java and discuss its types.
15. Explain the Singleton Design Pattern.
16. What are Builder, Prototype, and Factory design patterns?
17. Describe the contract between HashCode and Equals methods.
18. What is Synchronization in multithreading?
19. Explain Serialization in Java.
20. What is object cloning, and what are its types?
21. Differentiate between shallow cloning and deep cloning.
22. How can you make a class immutable in Java?
23. Explain how the string constant pool works in Java.
Mastery of these topics will significantly enhance your readiness for Java developer interviews.
This post is tailored for Java Developers with 2 to 4 years of experience who are preparing for interviews. Below are key questions that are frequently asked:
1. How does HashMap work internally?
2. Can you explain the internal workings of HashSet?
3. What are the key differences between List and Set?
4. Differentiate between Fail-Fast and Fail-Safe iterators.
5. Explain the distinctions between HashMap and ConcurrentHashMap.
6. How do you handle ConcurrentModificationException?
7. Enumerate the different levels of JVM memory.
8. What role does a Class Loader play in Java?
9. Define and differentiate Abstraction and Interface.
10. Do abstract classes have constructors?
11. Explain the SOLID principles in object-oriented design.
12. What are the fundamental concepts of Object-Oriented Programming (OOP)?
13. List some features introduced in Java 8.
14. Define Stream API in Java and discuss its types.
15. Explain the Singleton Design Pattern.
16. What are Builder, Prototype, and Factory design patterns?
17. Describe the contract between HashCode and Equals methods.
18. What is Synchronization in multithreading?
19. Explain Serialization in Java.
20. What is object cloning, and what are its types?
21. Differentiate between shallow cloning and deep cloning.
22. How can you make a class immutable in Java?
23. Explain how the string constant pool works in Java.
Mastery of these topics will significantly enhance your readiness for Java developer interviews.