Thread: Design Java Generic Container-please help!!!

Hi all,
I am currently learning Java from a university course. I am stuck with one of my assignment. I am a database developer, object-oriented is not my thing. Please help out!

The given Products.java class is following:

abstract class Products {
protected float price;

// return the price of a particular product
abstract float price();
}

//------------------------------------------------------------

class ComputerPart extends Products {
public ComputerPart(float p) {
price = p;
}

public float price() { return price; }
}

class Motherboard extends ComputerPart {
protected String manufacturer;
public Motherboard(String mfg, float p) {
super(p);
manufacturer = mfg;
}
public String getManufacturer() { return manufacturer; }
}

class RAM extends ComputerPart {
protected int size;
protected String manufacturer;
public RAM(String mfg, int size, float p) {
super(p);
this.manufacturer = mfg;
this.size = size;
}
public String getManufacturer() { return manufacturer; }
}

class Drive extends ComputerPart {
protected String type;
protected int speed;
public Drive(String type, int speed, float p) {
super(p);
this.type = type;
this.speed = speed;
}
public String getType() { return type; }
public int getSpeed() { return speed; }
}


class Peripheral extends Products {
public Peripheral(float p) {
price = p;
}
public float price() { return price; }
}

class Printer extends Peripheral {
protected String model;
public Printer(String model, float p) {
super(p);
this.model = model;
}
public String getModel() { return model; }
}

class Monitor extends Peripheral {
protected String model;
public Monitor(String model, float p) {
super(p);
this.model = model;
}
public String getModel() { return model; }
}

class Service extends Products {
public Service(float p) {
price = p;
}
public float price() { return price; }
}

class AssemblyService extends Service {
String provider;
public AssemblyService(String pv, float p) {
super(p);
provider = pv;
}
public String getProvider() { return provider; }
}

class DeliveryService extends Service {
String courier;
public DeliveryService(String c, float p) {
super(p);
courier = c;
}
public String getCourier() { return courier; }
}

//-------------------------------------------------------
class Cheese extends Products {
public Cheese(float p) {
price = p;
}
public float price() { return price; }
}

class Cheddar extends Cheese {
public Cheddar(float p) {
super(p);
}
}
class Mozzarella extends Cheese {
public Mozzarella(float p) {
super(p);
}
}

class Fruit extends Products {
public Fruit(float p) {
price = p;
}
public float price() { return price; }
}
class Apple extends Fruit {
public Apple(float p) {
super(p);
}
}
class Orange extends Fruit {
public Orange(float p) {
super(p);
}
}



The first requirement is design a generic container called GenericOrder that acts as a collection of an arbitrary number of objects in Products.java. Design a mechanism that gives each instance of the container a unique identifier. Implement as many methods as necessary. You must use Java generics features.

Please help me with this in anyway you can think of, i am totally lost on this.

Thanks in advance

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