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Hey guys I am still learning how to use simple java. I want to try to do this program which i found in some book, but i cant seem to get how to started. They say its a beginners program, but i found it quite difficult on how to start.

can someone please give me some way to start the code, so i can at least look and learn.

thanks

Here are the instructions for this java program:

Create a pricing system for a company that makes individualized computers, such as you might see on a Website. There are two kinds of computers: notebooks and desktop computers. The customer can select the processor speed, the amount of memory, and the size of the disk drive. The customer can also choose either a CD drive (Cd rom, cd-rw), a DVD drive, or both. For notebooks, there is a choice of screen size. Other options are a modem, a network card, or a wireless network. You should have a abstract class Computer and subclasses Desktop and Notebook. Each subclass should have methods for calculating the price of a computer, given the base price plus the cost of the different options. You should have methods for calculating memory price, hard drive price, and so on. There should be a method to calculate shipping cost.


Thanks


UPDATE:
Here is the most i Could get for this program. I am missing main class and having trouble with rest

Computer.java
Code:

public class Computer {

private String manufacturer;
private String processor;
private double ramSize;
private int diskSize;
private double processorSpeed;


    public Computer(String man, String processor, double ram, int disk, double procSpeed){
        manufacturer = man;
        this.processor = processor;
        ramSize = ram;
        diskSize = disk;
        processorSpeed = procSpeed;
    }


    public double computePower(){
        return ramSize * processorSpeed;
    }
    public double getRamSize(){
        return ramSize;
    }
    public double getprocessorSpeed(){
        return processorSpeed;
    }
    public int getDiskSize(){
        return diskSize;
    }
   
    @Override
    public String toString(){
        String result = "Manufacturer: " +manufacturer+
                      "\nCPU: " +processor+
                      "\nRam: " +ramSize+ "megabytes" +
                      "\nDisk: " +diskSize+ "gigabytes" +
                      "\nProcessor speed: " +processorSpeed+ "gigahertz";
        return result;
    }

}

Notebook.java
Code:

public class Notebook extends Computer {
    private static final String DEFAULT_NB_MAN = "MyBrand";
    private double screenSize;
    private double weight;
   

    public Notebook (String man, String proc,int ram, int disk, double procSpeed, double screen, double wei){
 
        super(man, proc, ram, disk, procSpeed);
        screenSize = screen;
        weight = wei;
       
    }
     
    public Notebook( String proc, int ram, int disk, double procSpeed, double screen, double wei ){
        this(DEFAULT_NB_MAN, proc, ram, disk, procSpeed, screen, wei);
       
       
    }
   
    @Override
    public String toString() {
        String result = super.toString() +
                            "\nScreen size: " +screenSize+ "inches" +
                            "\nWeight: " +weight + "pounds";
        return result;
    }
    }

Desktop.java
Code:

public class Desktop extends Computer{
   
    private int basePrice = 500;
   
    private int totalPrice = 0;

    public void addComponent(int price, int amount){
        totalPrice += price*amount;   
    }
   
    public void addMemory(int amount){
        addComponent(Prices.MEMORY_1GB,amount);
    }
   
   
    public int getPrice() {
        return basePrice + totalPrice;
    }

    public static class Prices{
        public static int MEMORY_1GB = -1;
        public static int DISK_1GB = -1;
        public static int PROCESSOR_2GHZ = -1;
        public static int PROCESSOR_4GHZ = -1;
    }
}

Thanks,

Edited by acash229: n/a

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Last Post by acash229
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> which i found in some book
That book being your course book and the problem being homework. Why not just say that?

Edited by Ezzaral: n/a

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Yes i Need help though. I have gotten this far but cant finish it

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Well first you need to create an input system where you will get your values.

What do you plan to use?? GUI?? command input?? HTML??

do that 1st and i basing from your code, i think it is almost complete.

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