Answers for "final methods java"

what is final in java

Final is used to apply restrictions on class, method, and variable.
The final class can't be inherited, final method can't be overridden,
and final variable value can't be changed. Final is a keyword

final method meaning

When a METHOD is declared with final keyword, it is called a final method. 
A final method cannot be OVERRIDEN.
when a CLASS is declared final then it cant be INHERITED.
when a VARIABLE is declared final its value cant be CHANGED.

java final meaning

private final String hello = "Hello World!";
/*
The keyword final states that the variable, method or class
associated will not have it's value changed.
*/

java final modifier on method

public class Shape {
  private int numberOfVertices;
  
  //with final modifier,
  //this method cannot be overridden by subclasses
  public final int getNumberOfVertices() {
    return numberOfVertices;
  }
}