Online Java classes

HTML and CSS Crash Course for Beginners.
please follow the link to join group for attending online class.
https://chat.whatsapp.com/CxEIQyhLDKCEf8HkijXAYT

Java Lambda expressions

Can we extends interface in Java?
Comment for answer!

Why Strings are called immutable in Java?

Difference between Java and C++.
read here:
https://javalanguagedojo.blogspot.com/2021/05/differences-between-java-and-c.html

Can we declare class as private?
Example:
private class Demo{

}

Comment your answer as Yes or No.

Java 13 released 😁

First advance Java batch finished.

Another Java batch starting soon. Contact to confirm your seat.

Online class so you can join from any location

Starting with Advance Java class. Please contact for information.
*Course contents*
Spring
Spring boot
Hibernate
JPA
Maven
ActiveMQ
Quartz
*Course fees*
Rs. 5000/- only

// Find the output

public class Demo {
int x = 10;
public static void main(String[] args)
{
Demo d1 = new Demo();
Demo d2 = new Demo();
d1.x = 20;
System.out.print(d1.x + " ");
System.out.println(d2.x);
}
}

Option
A) 10 10
B) 20 20
C) 10 20
D) 20 10