Thread: Using a constructor within a subclass

So I use Eclipse IDE. I am just practising with Java, so I'm only doing silly practise projects with stuff like Fruit classes and what not. To try out class extensions, I have one file, Fruit.java, and another, FruitRunner.java (to hold main, because putting main inside of an inner class causes Eclipse to malfunction).
Here is the content of Fruit.java:

package basics;
 
 
class Fruit {
	protected boolean has_seeds = true;
}
 
class Apple extends Fruit {
	String color;
	String type;
 
	public Apple(String color_, String type_) {
		String color = color_;
		String type = type_;
	}
 
}

And here is my runner:

package basics;
 
public class FruitRunner {
 
	public static void main(String[] args) {
		Apple apple1 = new Apple("Green", "Granny Smith");
 
		System.out.println("This is a " + apple1.color + ' ' + apple1.type);
 
		if (apple1.has_seeds) {
			System.out.println("It has seeds");
		}
}
}

Some things to note:

>The problem is that this will print "This is a null null" instead of a "This is a Green Granny Smith".
>In Fruit.java, Eclipse says that apple1.color and apple1.type are never used, which of course makes sense because it manifests as null in the runner.
>The only reason I have FruitRunner.java is because when I tried declaring main inside of that inner class, Eclipse said it failed to find main() .

I'm afraid I don't understand. Could you be more concrete?

Change the constructor as Norm says.

class Apple extends Fruit {
String color;
String type;

public Apple(String color_, String type_) {
this.color = color_;
this.type = type_;
}
}