final method in java | java final variable in method

Final method in Java

The final modifier for finalizing the implementations of classes, methods, and variables.

We can declare a method as final, once you declare a method final it cannot be overridden. So, you cannot modify a final method from a sub class.

The main intention of making a method final would be that the content of the method should not be changed by any outsider.

final method in java programming

Example:

public class FinalMethodExample {

   public final void display(){

      System.out.println("Hello welcome to Tutorialspoint");

   }                        

   public static void main(String args[]){

      new FinalMethodExample().display();

   }

   class Sample extends FinalMethodExample{

      public void display(){

         System.out.println("hi");

      }

   }

}

Output:

FinalMethodExample.java:12:error:display()  in

FinalMethodExample.Sample cannot override display() in

FinalMethodExample

public void display() {

overridden method is final

1error