Interface Inheritance

[McChill]

Whenever I make the class Q, i get a compile error saying "The type Q must implement the inherited abstract method P12.display()"

I get that I have to put the implementation for display() somewhere in Q (or close to in Q..?), but I'm confused by how to do it. I tried putting

void display()
{
System.out.println("DISPLAY");
}

but it didn't work. I tried just putting void display() {} in Q but that did not work.

This is my code so far...

interface P {
	
	String P = "P";
	void display();
	
	
}

interface P1 extends P {

	String P1 = "P1";
	
	
}

interface P2 extends P{
	
	void display();
	String P2 = "P2";

}

interface P12 extends P1, P2{

	void display();
	String P12 = "P12";
	
	
}

public class Q implements P12{
	
	
	

}

Any help would be appreciated.

[Fubarable]

Does your method need to have the "public" keyword at its declaration in Q?

[angryboy]

[B]public[/B] void display()
{
System.out.println("DISPLAY");
}

edit:
methods in interfaces are public, when you declared void display(), that's default package which is weaker.