What is the output of this code?
int a = 10, b = 20; System.out.println(a > b);
int a = 10, b = 20; System.out.println(a > b);
Anonymous Poll
20%
true
77%
False
3%
10
0%
20
❤1
Which of these is the Fibonacci series start?
Anonymous Poll
25%
1, 2, 3, 5, 8
69%
0, 1, 1, 2, 3
4%
1, 3, 5, 7
3%
2, 4, 8
What is the default value of a local variable?
Anonymous Poll
43%
0
24%
null
2%
false
30%
No default value
What is the main purpose of the volatile keyword in Java?
Anonymous Poll
44%
To make variable synchronized
10%
To make a variable constant
44%
To ensure visibility across threads
2%
To stop thread execution
❤2
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✅ What You’ll Get:
👉 Real-Time Live Projects (Banking, E-Commerce, HealthCare, etc)
👉 Resume & Interview Preparation from Industry Experts
👉 1-on-1 Career Mentorship & Support
👉 Online / Offline / Weekday & Weekend Batches
👉 Switch from Service-Based to Product-Based Company
👉 Learn Directly From Experts with 10+ Years of Experience
📞 Contact: +91 7887575991 / 9356943970 / 020 4721 2644
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🔁 For #referrals, connect with - @Kiran Jadhav
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#Follow us at - @Full Stack Java Developer Pune
Turn things around – take a stand for your career.
What will happen if equals() is overridden but hashCode() is not?
Anonymous Poll
17%
Compilation error
26%
Runtime exception
50%
May cause unexpected behavior in hash-based collections
7%
Nothing will happen
What happens when a thread calls wait() method without owning the object lock?
Anonymous Poll
24%
It waits normally
24%
It goes to sleep
34%
It throws IllegalMonitorStateException
18%
It deadlocks
What is the use of Optional in Java 8?
Anonymous Poll
60%
For null safety
13%
For faster loops
18%
For multi-threading
9%
For file handling
What will be the output of the following code?
int a = 5; int b = 2; System.out.println(a + b + "Java");
int a = 5; int b = 2; System.out.println(a + b + "Java");
Anonymous Poll
71%
7Java
17%
52Java
5%
Java52
7%
Error
What matters most in your first job?
Anonymous Poll
88%
Learning & growth
10%
Salary
0%
Company name
2%
Office location
Are you using JDK 25 in your learning or development practice?
Anonymous Poll
64%
🟢 Yes — exploring new features 💡
9%
🟡 Planning to upgrade soon
27%
🔴 Still on JDK 17 or 21
Convert a List of Lists into a single List using flatMap() in Stream API
In this video I have explained how flatMap helps to flatten nested lists in just one line using Streams.
Very useful concept for Java interviews + real project coding ✅
Watch the video 👇
https://www.youtube.com/watch?v=8nZUpbRR44M
In this video I have explained how flatMap helps to flatten nested lists in just one line using Streams.
Very useful concept for Java interviews + real project coding ✅
Watch the video 👇
https://www.youtube.com/watch?v=8nZUpbRR44M
YouTube
Convert a List of Lists into a single List using Stream API flatMap | Learn with Mr. Kiran Jadhav
Convert a List of Lists into a single List using Java Stream API flatMap
flatMap-
Use flatMap() when each element produces multiple elements, and you want to merge them into a single stream.
Internal Working of flatMap()
flatMap() = map + flatten
Steps:…
flatMap-
Use flatMap() when each element produces multiple elements, and you want to merge them into a single stream.
Internal Working of flatMap()
flatMap() = map + flatten
Steps:…
👍1
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Insurance Full Stack Application built using Spring Boot + Microservices + React JS ✅
Insurance Full Stack Project Spring Boot with Microservices Using React JS
https://www.youtube.com/watch?v=NbnqAEVM9w8
YouTube
Insurance Full Stack Project Spring Boot with Microservices Using React JS
Insurance Full Stack Project- Spring Boot with Microservices Using React JS
Tech Stack-
Back End- Java, JDK 25, Data JPA, Spring Boot, Spring Security- JWT, Microservices
Front End- React JS
Database- MySQL
API Testing- Postman API, Swagger UI
Version Control…
Tech Stack-
Back End- Java, JDK 25, Data JPA, Spring Boot, Spring Security- JWT, Microservices
Front End- React JS
Database- MySQL
API Testing- Postman API, Swagger UI
Version Control…
👍1
Are you feeling confident about your career direction right now?
Most freshers and working professionals are confused, stressed or unsure at the beginning — and that’s totally normal 😊 If you need career guidance / roadmap ideas,
Most freshers and working professionals are confused, stressed or unsure at the beginning — and that’s totally normal 😊 If you need career guidance / roadmap ideas,
Anonymous Poll
38%
Yes — I know what I want and I’m focused
25%
Somewhat — still figuring out step by step
25%
No — I am confused and need guidance
13%
Not sure — taking random decisions
👍1
When you feel demotivated about your career, what helps you the most?
We all face low moments… what helps you rise back?
We all face low moments… what helps you rise back?
Anonymous Poll
9%
Listening to motivation talks
32%
Talking to someone close
32%
Taking a break & resting
27%
Working even harder
Spring Boot Interview Question:👉 How to handle XML payloads in Spring Boot REST API?
Spring Boot Interview Question:
How to handle XML payloads in Spring Boot REST API?
📘 Steps:
1️⃣ Add Dependency → jackson-dataformat-xml in pom.xml
2️⃣ Annotate POJO → @XmlRootElement(name="Customer")
3️⃣ Controller → Use produces & consumes = MediaType.APPLICATION_XML_VALUE
💡 Tip: XML support is still key when working with legacy or enterprise systems!
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🏢 Office: 020 4721 2644
🌐 Website: fullstackjavadeveloper.in
https://www.youtube.com/shorts/P3U5Z0XHNXk
Spring Boot Interview Question:
How to handle XML payloads in Spring Boot REST API?
📘 Steps:
1️⃣ Add Dependency → jackson-dataformat-xml in pom.xml
2️⃣ Annotate POJO → @XmlRootElement(name="Customer")
3️⃣ Controller → Use produces & consumes = MediaType.APPLICATION_XML_VALUE
💡 Tip: XML support is still key when working with legacy or enterprise systems!
Career Tip:
Struggling for a Career Switch or Salary Growth?
Java Full Stack is your Game Changer Skill!
📅 New Batch Starts: 5 Jan 2026
📞 Contact: +91 7887575991 / 9356943970 (24×7 Support)
🏢 Office: 020 4721 2644
🌐 Website: fullstackjavadeveloper.in
https://www.youtube.com/shorts/P3U5Z0XHNXk
YouTube
Spring Boot Interview Question:👉 How to handle XML payloads in Spring Boot REST API?
Spring Boot Interview Question: How to handle XML payloads in Spring Boot REST API?📘 Steps:1️⃣ Add Dependency → jackson-dataformat-xml in pom.xml2️⃣ Annotat...