Static And Dynamic Binding In Java

Chapter: Inheritance Last Updated: 24-03-2017 03:37:51 UTC

Program:

            /* ............... START ............... */
                
public class Vehicle {
	public void showSpeed() {
		System.out.println("Vehicle class speed.");
	}
}

public class Car extends Vehicle {

	public void showSpeed() {
		System.out.println("Vehicle class speed.");
	}

	public void start() {
		System.out.println("Car started");
	}

	public static void main(String[] args) {
		Car c1 = new Car();
		c1.start(); // static or early binding

		Vehicle c2 = new Car();
		c2.showSpeed(); // dynamic or late binding
	}
}
                /* ............... END ............... */
        

Notes:

• Static and dynamic binding are important concepts in java. Static binding is also called as early binding and dynamic binding as late binding.
• Binding means connecting method call to method body in class. In binding compiler binds data with method.
• Compiler resolves the binding at the compile time only then such a binding is called Static Binding or Early Binding.
• Compiler cannot resolves the binding at the compile time but at runtime then such a binding is called Dynamic Binding or Late Binding.

Tags

Static and Dynamic binding, Java

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