final keyword in Java | final variable | final method | final class ‎

final keyword in Java | final variable | final method | final class | knowledge base #final #java ‪@knowledgebase2612‬

In this video, we will see how final variable works in Java with the help of examples. The video covers all the concepts i.e. final variable, final method, final class with examples. This video is helpful for those who are preparing for the Java interview, BCA, BCS, B.Sc CS, M.Sc, MCA, BE CS, and all computer science and IT students.

Chapters
0:00 Intro
0:21 What is the final keyword?
0:45 final variables with example
1:16 final method with example
1:41 final classes with example
2:06 practical demonstration of final keyword
4:23 summary

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Code for final keyword in java practical demonstration

final class Demo
{
final int x=10;
final public void display()
{
//x=20; //cant reassign value to final var
System.out.println("x="+x);
}
}
/*class Derived extends Demo // can't inherit class from final class
{
/* public void display()// can't override final method
{
System.out.println("From derived class x="+x);
}
}*/
class FinalDemo
{
public static void main(String[] args)
{
Demo obj=new Demo();
obj.display();
}
}

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