You declare a method final in Java when you do not want any subclasses of your class to be able to override the method.
I have also heard that this allows the Java compiler to make more intelligent decisions. For example, it supposedly allows Java to decide when to make a method inline. (Note that this is all unconfirmed)
You declare a class final when you don't want any other classes to be able to extend that class.
You declare a method final when you don't want any subclasses to be able to override that method.
No. An abstract method must be overriden in an subclass. If the method is final then it can't be edited.
No, Java only allows a method to be defined within a class, not within another method.
when overriding of a class or a method is necessary, they can be declared as abstract
if u declare variable in method & tray to use this variable outside the method then it is out of scope
Every method in java that isn't a class (static) method is automatically "virtual." If you want to disable virtual overrides, make the method "final" in the base class.
A method in java can declare only one return value and type at a time. For ex: a single method cannot have a code that returns a string in some cases and an integer in other cases. Java compiler does not let you do that. You can only have one return type for every method in java.
if we declare a method as final then it can be changed.
Declare the class as final. final class A{ ... }
You can declare a class as "final".
No, Java only allows a method to be defined within a class, not within another method.
when overriding of a class or a method is necessary, they can be declared as abstract
The final and finally keywords have no impact on the return type of a method in Java.
if u declare variable in method & tray to use this variable outside the method then it is out of scope
Every method in java that isn't a class (static) method is automatically "virtual." If you want to disable virtual overrides, make the method "final" in the base class.
Methods which are declared final cannot be overridden.
A method in java can declare only one return value and type at a time. For ex: a single method cannot have a code that returns a string in some cases and an integer in other cases. Java compiler does not let you do that. You can only have one return type for every method in java.
They are inversely related. That is: If you declare a method as final you cannot overridden in the child class If you declare a class as final you cannot inherit it in any other class.
fixed method means is one which cannot be overridden by a subclass. A fixed method can be declared by prefixing the word-final before a method. We can use the keyword final to donate a constant.