Can i override private method in java

Private methods are not inherited and cannot be overridden in any way. Whoever told you you can do it with reflection was either lying or talking about something else. However, you can access the private method getInt of whatever subclass is invoking printInt like so:. This will have the effect of the subclass' getInt method being called from the superclass' printInt. Of course, now this will fail if the subclass doesn't declare a getInt , so you have to add a check to be able to handle "normal" subclasses that don't try to "override" a private method:.

You still have to change superclass code to make this work, and since you have to change superclass code, you should just change the access modifier on getInt to protected instead of doing reflection hack-arounds. You can't override a private method because no other class, including a derived class, can tell that it exists. It's private. On a related note, a subclass can declare a field or method with the same name as a private field or method in a super class, because from the subclass's point of view, these members do not exist.

There's no special relationship between these members. No, you can't. You can construct a program which look like it should be able to do this, using the fact that code within an outer class can access nested class's private members. However, private methods still can't actually be overridden. We get compile time error: fun has private access in Base.

It is because compiler tries to call base class function that is declared private , hence cannot be overridden. Inner class is saviour: An Inner classes can access private members of its outer class, for example in the following program, fun of Inner accesses private data member msg which is fine by the compiler.

The derive class can not access the private method on the ancestor. Since t is a on object of type B , calling don method will invoque the method defined at B. It doesn't even know that there is a method named also don at class A. You can't override a private method, but then again, you can't call it either. You can create an identical method with the same name in the child however. If you don't implement the private calculate method in B, it won't compile because the public method that calls it can't see the private method in A.

Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Override "private" method in java Ask Question. Asked 5 years, 9 months ago. Active 5 years, 9 months ago. Viewed 27k times. There something ambiguous about this idea and I need some clarifications.

Chris Martin Some good reading: stackoverflow. In addition to not be visible outside the type and perhaps more relevant to the question here , private methods are not polymorphic - only the method defined on the type of the expression will ever be invoked; no dynamic dispatch occurs.

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