Difference between Static binding and dynamic binding in Java

Java Object Oriented Programming Programming

Binding is a mechanism creating link between method call and method actual implementation. As per the polymorphism concept in Java , object can have many different forms. Object forms can be resolved at compile time and run time. If linking between method call and method implementation is resolved at compile time then we call it static binding or If it is resolved at run time then it dynamic binding. Dynamic binding uses object to resolve binding but static binding use type of the class and fields.

Sr. No.	Key	Static Binding	Dynamic Binding
1	Basic	It is resolved at compile time	It is resolved at run time
2	Resolve mechanism	static binding use type of the class and fields	Dynamic binding uses object to resolve binding
3	Example	Overloading is an example of static binding	Method overriding is the example of Dynamic binding
4.	Type of Methods	private, final and static methods and variables uses static binding	Virtual methods use dynamic binding

Example of Static and Dynamic Binding

public class FastFood {
   public void create() {
      System.out.println("Creating in FastFood class");
   }
}
public class Pizza extends FastFood {
   public void create() {
      System.out.println("Creating in Pizza class");
   }
}
public class Main {
   public static void main(String[] args) {
      FastFood fastFood= new FastFood();
      fastFood.create();
      //Dynamic binding
      FastFood pza= new Pizza();
      pza.create();
   }
}

Himanshu shriv

Published on 21-Jan-2020 10:07:31

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