Why are we forced to call super.method()? The classes that make up the Android SDK can be incredibly complex. For instance, both activities and fragments must perform a number of operations in order to function properly (i.e. managing life cycle, optimizing memory usage, drawing the layout to the screen, etc.). Requiring the client to make … Read more
Overloading a method (or function) in C++ is the ability for functions of the same name to be defined as long as these methods have different signatures (different set of parameters). Method overriding is the ability of the inherited class rewriting the virtual method of the base class. a) In overloading, there is a relationship … Read more
How does that work if the fields that it’s based on are mutable? It doesn’t in the sense that the hash code will change as the object changes. That is a problem for all of the reasons listed in the articles you read. Unfortunately this is the type of problem that typically only show up … Read more
It’s an annotation that you can use to tell the compiler and your IDE that you intend the method that has that annotation to be an override of a super class method. They have warning/errors in case you make mistakes, for example if you intend to override a method but misspell it, if the annotation … Read more
The virtual keyword is used to modify a method, property, indexer or event declaration, and allow it to be overridden in a derived class. For example, this method can be overridden by any class that inherits it: Use the new modifier to explicitly hide a member inherited from a base class. To hide an inherited … Read more
You can try out this code. Since you cannot override valueOf method you have to define a custom method (getEnum in the sample code below) which returns the value that you need and change your client to use this method instead. public enum RandomEnum { StartHere(“Start Here”), StopHere(“Stop Here”); private String value; RandomEnum(String value) { … Read more
You can simply use: mvn –settings YourOwnSettings.xml clean install or mvn -s YourOwnSettings.xml clean install
I think it could be done like so: //First rename existing function rename_function(‘strlen’, ‘new_strlen’); //Override function with another override_function(‘strlen’, ‘$string’, ‘return override_strlen($string);’); //Create the other function function override_strlen($string){ return new_strlen($string); } found it here Notice that every host must have http://php.net/manual/en/book.apd.php installed on the server. Edit Another way is to use namespaces <?php namespace mysql2pdo; … Read more
The term used to describe this is “hiding”, rather than “overriding”. A member of a derived class will, by default, make any members of base classes with the same name inaccessible, whether or not they have the same signature. If you want to access the base class members, you can pull them into the derived … Read more
Method overloading means making multiple versions of a function based on the inputs. For example: public Double doSomething(Double x) { … } public Object doSomething(Object y) { … } The choice of which method to call is made at compile time. For example: Double obj1 = new Double(); doSomething(obj1); // calls the Double version Object … Read more