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,
