Shulou(Shulou.com)06/03 Report--

This article mainly introduces "the difference between php and java object-oriented". In daily operation, I believe many people have doubts about the difference between php and java object-oriented. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "the difference between php and java object-oriented". Next, please follow the editor to study!

1. The class keyword of php cannot have modifiers other than abstract and final, while Java can.

2. The class name after the new keyword of php can be a variable of string type, but java cannot.

3. When accessing the parent object, php uses parent and java uses super.

Abstract methods and Abstract classes

Basically the same, abstract methods and abstract classes are modified with the abstract keyword, at least one abstract method class is called abstract class, abstract class can not be instantiated, if the subclass can be instantiated, all abstract methods of the parent class must be implemented.

Rewrite / overwrite / overload

The subclass method is exactly the same as the parent method signature, which is called rewriting / overwriting, and the parent method is not visible in the subclass. Because Java is a strongly typed language, it has an overloading mechanism (same method name, different signatures, and determines which method is called according to the actual parameter type and number when calling). PHP is a weak type, without such overloading, but with the overload of dynamically creating class properties and methods, which is achieved through magic methods (_ _ get, _ _ set, _ _ unset, _ _ isset, _ _ callStatic).

At this point, the study of "the difference between php and java object-oriented" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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