java final modifier on method

In Java, the final modifier is used to indicate that a method cannot be overridden by a subclass.

Here's an example of a final method:

public class Parent {
  public final void method() {
    // Method implementation goes here
  }
}

public class Child extends Parent {
  // The following method would generate a compile-error because it attempts to override a final method
  // public void method() { }
}

Declaring a method as final can be useful in cases where you want to ensure that the behavior of the method cannot be changed by a subclass. This can be especially important if the method has a critical role in the operation of the class, or if it depends on other methods or variables that might be changed by a subclass.

Note that you can also declare a class as final, which means that the class cannot be subclassed. This can be useful in cases where you want to prevent a class from being extended or modified in any way.

You can find more information about the final modifier in the Java documentation.