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Implementing abstract methods

You will change the Toyota and Mercedes classes to give each car its implementation for the horn sounding. For uniqueness, you will create a version of the method for sounding the horn in both the Toyota and Mercedes classes.

NOTE: An abstract method must be implemented when inherited from an Abstract class, within the subclass.

This exercise is part of the course

Introduction to Object-Oriented Programming in Java

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Exercise instructions

  • Implement the soundHorn method in the Toyota class to print "sounds like a toyota".
  • Implement the soundHorn method inside the Mercedes class to print "sounds like a mercedes".
  • Inside the main method, call the soundHorn method on the myToyota instance and the soundHorn method on the myMercedes instance.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

public class Main {  
	static class Toyota extends Car {
        public Toyota() {
            super();
        }

        // Create soundHorn() for Toyota
        ___ ___ ___() {
            System.out.println(___);
        }
    }

    static class Mercedes extends Car {
    	// Create soundHorn() for Mercedes
        ___ ___ ___() {
            System.out.println("____");
        }

        public Mercedes() {
            super();
        }  
    }

    static abstract class Car {

        public Car() {

        }

        public abstract void soundHorn();

    }
    
    public static void main(String[] args) {
        Toyota myToyota = new Toyota();
        Mercedes myMercedes = new Mercedes();
        
        // Call "soundHorn" for myToyota and myMercedes
        ___.___;
        ___.___;
    }
    
}
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