Tips for solving execution polymorphism and compile-time polymorphism in cJuly 21, 2020 by Steven Colson
This guide describes some possible causes that can lead to run polymorphism and compilation polymorphism in c. He will then provide possible repair methods that you can try to solve this problem. Execution polymorphism is also called dynamic polymorphism or late binding. With execution polymorphism, a function call is resolved at run time. On the other hand, the compiler retrieves the object at run time at compile time or during static polymorphism, and then decides to call the function to communicate with the object.
In the last lesson, we discussed polymorphism in Java. In this guide, we will see types of polymorphism. There are two types of polymorphism in Java:
1) Static polymorphism, also called compilation polymorphism 2) Dynamic polymorphism, also called executive polymorphism
Compile-time Polymorphism (or Static Polymorphism)
The polymorphism that resolves at compile time is called static polymorphism. Method overloading is an example of compile-time polymorphism.
Method overload: this allows us to have more than one method with the same name if the parameters of the methods differ in the number, order and data types of the parameters. We already talked about method overloading here: if you have not read this manual yet, read: Method overloading in Java
Example Of Static Polymorphism
Method overloading is one of the ways Java supports static polymorphism. Here we have two definitions of the same add () method, the called add method is determined by the list of parameters at compile time. By eFor this reason, it is also known as compilation polymorphism.
Execution Polymorphism (or Dynamic Polymorphism)
This is also called dynamic allocation of methods. Dynamic polymorphism is a process in which a call to a replaced method is resolved at runtime. Therefore, this is called polymorphism execution. I have already discussed method overrides in detail in a separate guide. For more information, see: Method Overrides in Java.
In this example, we have two classes ABC and XYZ. ABC is the parent class, and XYZ is the child class. The child class replaces the myMethod () method of the parent class. In this example, a reference to the parent class was assigned to the child class object. To determine the method to call, the type of the object is determined at run time. This is the type of object that determines which version of the method is being called (not the reference type).
If the overwritten method is called through a reference to a superior class, the type of the object determines the method that must be executed. This definition is therefore made in lead time.
Since both classes, the child class and the parent class have the same
animalSound method. The version of the method being called (subclass or superclass) is determined by the JVM at runtime.
In the third case, the subclass method must be executed, because the method that must be executed is determined by the type of the object, and since the object belongs to the subclass, the subclass version of the class myMethod () is called.
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