Difference between Static binding and dynamic binding in Java

JavaObject Oriented ProgrammingProgramming

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();
   }
}
raja
Published on 21-Jan-2020 10:07:31
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