5up Codes: Java - Inheritance

public class Animal {
 
    public String animalSound;
     
    public Animal(String aSound) {
        animalSound = aSound;
    }
    
    public void makeASound() {
        System.out.println(animalSound);
    } 
}
 
 
public class Dog extends Animal {
 
    public Dog(String aSound) {
        super(aSound);
    }
      
    public static void main(String args[]) {
        Dog dog = new Dog("bark");
 
        dog.makeASound();
    }
}
Result:

bark