Help with Abstract Classes please.

[fatabass]

public abstract class Component {
	int age;
	public int getAge() {
		return age;
	}
}

public class ConrecteComponent extends Component {
	public ConrecteComponent(int age) {
		this.age = age;
	}
}

public abstract class Decorator extends Component {
	Component comp;
	int extraAge;
	public Decorator(Component comp) {
		this.comp = comp;
	}
	public int getAge() {
		return comp.age + extraAge;
	}
}

public class ConcreteDecoratorA extends Decorator {
	int extraAge = 15;
	public ConcreteDecoratorA(Component comp) {
		super(comp);
	}
}

public class DecoratorTestClass {
	public static void main(String[] args) {
		ConrecteComponent myComponent = new ConrecteComponent(5);
		ConcreteDecoratorA myDecorator = new ConcreteDecoratorA(myComponent);
		System.out.println(myDecorator.getAge());
	}
}

I am expecting the output to be 20 but the output is 5.

Why is the int

extraAge = 15;

is not taken into account ?

Thank you.

[ozzyman]

This is very similar to your other question. Again, you should read the inheritance java tutorials fully so that you understand it properly.

Here is the link again:
Inheritance (The Java™ Tutorials > Learning the Java Language > Interfaces and Inheritance)