Thread: help with interface

The CarPart class should also implement a Functional interface, which declares a method "function()".< ------ This is an instruction which I am trying to do but it is not working. Please help. I got an error ---class Engine extends CarPart implements myinterface ----at this line

 
 
 
public class Simulator {
 
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Car mycar = new Car("Red");
		mycar.run();
 
		CarPart my_car_part = new CarPart();
		my_car_part.status(90);
 
 
		Engine my_engine = new Engine(true);
		my_engine.status(100);
 
		my_engine.function();
	}
 
 
 
}
 
class Car{
	private String color = " ";
	public Car(String n_color)
	{
		this.color = n_color;
	}
	public void run() {
		System.out.println("This can can run");
	}
}
class CarPart
{
	public interface myinterface{
 
		public void function();
 
	}
 
 
 
	public static final int MAX = 100;
	public static final int MIN = 0;
	int condition;
 
 
	public CarPart()
	{
		this.condition = MAX;
	}
	public void status(int n_condition)
	{
		condition = n_condition;
		if(condition == MAX )
		{
			System.out.println("Brand new part");
		}
		else if (condition <100 && condition > 80)
		{
			System.out.println("Fairly new part");
		}
		else if(condition <= 80 && condition > 40)
		{
			System.out.println("ok part");
		}
		else if(condition <= 40 && condition > 0)
		{
			System.out.println("old Part");
		}
		else if (condition == 0)
		{
			System.out.println("Not working Part");
		}
		else
		{
			System.out.println("Invalid Input");
		}
 
		//System.out.println("update satus");
	}
}
 
 
class Engine extends CarPart implements myinterface {
	//private String engine_type = " ";
	private boolean engineState = false;
	private int engine_horse_power = 100;
 
	public Engine( boolean n_engineState) {
		super();
		this.engineState = n_engineState;
		if(engineState == true)
		{
			engineSound();
		}
		else
		{
			System.out.println("Engine is dead");
		}
	}
 
	public void function()
	{
 
	}

The CarPart class should also implement a Functional interface, which declares a method "function()".< ------ This is an instruction which I am trying to do but it is not working. Please help

 
 
 
public class Simulator {
 
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Car mycar = new Car("Red");
		mycar.run();
 
		CarPart my_car_part = new CarPart();
		my_car_part.status(90);
 
 
		Engine my_engine = new Engine(true);
		my_engine.status(100);
 
		my_engine.function();
	}
 
 
 
}
 
class Car{
	private String color = " ";
	public Car(String n_color)
	{
		this.color = n_color;
	}
	public void run() {
		System.out.println("This can can run");
	}
}
class CarPart
{
	public interface myinterface{
 
		public void function();
 
	}
 
 
 
	public static final int MAX = 100;
	public static final int MIN = 0;
	int condition;
 
 
	public CarPart()
	{
		this.condition = MAX;
	}
	public void status(int n_condition)
	{
		condition = n_condition;
		if(condition == MAX )
		{
			System.out.println("Brand new part");
		}
		else if (condition <100 && condition > 80)
		{
			System.out.println("Fairly new part");
		}
		else if(condition <= 80 && condition > 40)
		{
			System.out.println("ok part");
		}
		else if(condition <= 40 && condition > 0)
		{
			System.out.println("old Part");
		}
		else if (condition == 0)
		{
			System.out.println("Not working Part");
		}
		else
		{
			System.out.println("Invalid Input");
		}
 
		//System.out.println("update satus");
	}
}
 
 
class Engine extends CarPart implements myinterface {
	//private String engine_type = " ";
	private boolean engineState = false;
	private int engine_horse_power = 100;
 
	public Engine( boolean n_engineState) {
		super();
		this.engineState = n_engineState;
		if(engineState == true)
		{
			engineSound();
		}
		else
		{
			System.out.println("Engine is dead");
		}
	}
 
	public void function()
	{
 
	}

--- Update ---

Never mind, I found the problem. Thanks