Difference between compile-time polymorphism and runtime polymorphism
Polymorphism is one of the most important OOPs concepts. Its is a concept by which we can perform single task in multiple ways. There are two types of polymorphism one is Compile-time polymorphism and another is run-time polymorphism.
Method overloading is the example of compile time polymorphism and method overriding is the example of run-time polymorphism.
| Sr. No. | Key | Compile-time polymorphism | Runtime polymorphism |
|---|
1
| Basic
| Compile time polymorphism means binding is occuring at compile time
| R un time polymorphism where at run time we came to know which method is going to invoke
|
2
| Static/Dynamic
Binding
|
It can be achieved through static binding
| It can be achieved through dynamic binding
|
4.
| Inheritance
| Inheritance is not involved
| Inheritance is involved
|
5
| Example
| Method overloading is an example of compile time polymorphism
| Method overriding is an example of runtime polymorphism
|
Example of Compile-time Polymorphism
public class Main {
public static void main(String args[]) {
CompileTimePloymorphismExample obj = new CompileTimePloymorphismExample();
obj.display();
obj.display("Polymorphism");
}
}
class CompileTimePloymorphismExample {
void display() {
System.out.println("In Display without parameter");
}
void display(String value) {
System.out.println("In Display with parameter" + value);
}
}Example of Runtime Polymorphism
public class Main {
public static void main(String args[]) {
RunTimePolymorphismParentClassExample obj = new RunTimePolymorphismSubClassExample();
obj.display();
}
}
class RunTimePolymorphismParentClassExample {
public void display() {
System.out.println("Overridden Method");
}
}
public class RunTimePolymorphismSubClassExample extends RunTimePolymorphismParentExample {
public void display() {
System.out.println("Overriding Method");
}
}
Published on 09-Sep-2020 12:00:06
