hi ive developed an inventory program but when i compile it keeps giving me an error message that ive tried solving but it doesnt work.the code looks like this:
// Inventory.java
// Program that displays the value of a product in inventory.
import java.util.Scanner; // program uses class Scanner
class Product
{
private double itemnum; // class variable that stores Item number
private double prodprice; // class variable that stores tprice of the product
private double numinstock; // class variable that stores the number of product in stock
private String prodname; //class variable for the name of the product
public Product() // Constructor for the Item
{
itemnum = 0.0;
prodprice = 0.0;
numinstock = 0.0;
}
public void setItemNum(double num) // Method to set the Item number
{
itemnum = num;
}
public double getitemnumber() // Method to get the Item number
{
return itemnum;
}
public void setprodprice(double prod) // Method to set the Price of the product
{
prodprice = prod;
}
public double getprodprice() // Method to get the Price of the product
{
return prodprice;
}
public void setnuminstock(double numstock) // Method to set the Price of the product
{
numinstock = numstock;
}
public double getnuminstock() // Method to get the Price of the product
{
return numinstock;
}
public void setprodname(String name) // Method to set the name of the product
{
prodname = name;
}
public String getprodname() // Method to get the name of the product
{
return prodname;
}
public double calculateValue() // Method to calculate the weekly pay
{
return prodprice * numinstock;
}
}//end class Product
public class Inventory
{
public static void main( String args[] )
{
// create Scanner to obtain input from command window
Scanner input = new Scanner( System.in );
//Instantiate an Item object
Item myItem = new Item();
//Print out a screen title
System.out.printf("Inventory Program\n\n");
System.out.println( "Enter the name of product or the word stop: " ); // prompt for input
myItem.setProdname(input.nextLine());// read item name or stop
// while loop to repeat the entry of the item until stop is entered
while (!(myItem.getProdname().equalsIgnoreCase("stop") ) )
// start while
{
//Enter Item number
System.out.print( "Enter the Item number: " ); // prompt for input
myItem.setItemnum(input.nextDouble());// read item number
// while loop to repeat the entry of the item number until a positive value is entered
while (myItem.getItemnum()<=0.0)
{
System.out.println("Wrong Entry");
System.out.println("Please enter a positive Item Number:");
myItem.setItemnum(input.nextDouble()); // read Item number
}
// Enter Number of Items in Stock
System.out.print("Enter number of Items in Stock:");
myItem.setNuminstock(input.nextDouble()); // read Number of Items in Stock
// while loop to repeat the entry of Items in stock until a positive value is entered
while (myItem.getNuminstock()<=0.0)
{
System.out.println("Wrong Entry");
System.out.println("Please enter a positive Number in Stock:");
myItem.setNuminstock(input.nextDouble()); // read Item number
}
// Enter price of the Item
System.out.print( "Enter the price of the item: " ); // prompt for input
myItem.setProdprice(input.nextDouble()); // Read price of the product
// while loop to repeat the entry of Items in stock until a positive value is entered
while (myItem.getProdprice()<=0.0)
{
System.out.println("Wrong Entry");
System.out.println("Please enter a positive Item Price:");
myItem.setProdprice(input.nextDouble()); // read Item Price
}
System.out.printf("The value %s is $ %.2f\n\n\n",
myItem.getItemname();
myItemname.calculatevalue() ; // display the calculated inventory value
System.out.println("Enter the name of the product or the word stop:"); // prompt
myItem.setItemname(input.next()); /// read item name or stop
} // end while
} // end method main
} // end class InventoryPart1
