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What is runtime polymorphism or dynamic method overloading?
Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP occurs when a parent class reference is used to refer to a child class object. Method overriding by a subclass is termed as runtime polymorphism. JVM determines the method to be executed at runtime instead of compile time.
example
class SuperClass {
SuperClass get(){
System.out.println("SuperClass");
return this;
}
}
public class Tester extends SuperClass {
Tester get(){
System.out.println("SubClass");
return this;
}
public static void main(String[] args) {
SuperClass tester = new Tester();
tester.get();
}
}Output
SubClass
Updated on 05-Mar-2020 12:29:43
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