Two class help please

Question

alright, the main purpose is to compute how much it will cost if u enter a weight of the bag and the units....i have the math there, but i cant figure out what im doing wrong....any ideas, something isnt right i can see it,
import java.text.DecimalFormat;
import java.util.Scanner;
import javax.swing.*;
public class Coffee {
     public static void main(String[] args) {
          CoffeeBag checker = new CoffeeBag();
          int weight, numUnits;
          String numUnits1 = JOptionPane.showInputDialog(null, "Enter the number of bags: ");
          String weight1 = JOptionPane.showInputDialog(null, "Enter weight of the units in pounds: ");
          weight = Integer.parseInt(weight1);//string to int//
          numUnits = Integer.parseInt(numUnits1);
          checker.setNumberOfUnits(numUnits);
          checker.setUnitWeight(weight);
          DecimalFormat df = new DecimalFormat("0.00");
          Scanner scanner;
          scanner = new Scanner(System.in);
          System.out.println("Number of bags sold: " + numUnits);
          System.out.println("Weight per bag: " + weight);
          System.out.println("Price per pound: $5.99");
          System.out.println("Sales tax: 7.25%");
          System.out.println();
          System.out.println("Total Price: $" + df.format((float)checker.getTotalPrice()));
class CoffeeBag {
private final static double PRICE_PER_LB = 5.99;
private final static double SALES_TAX = 0.0725;
private int unitWeight, numberOfUnits;
double totalPrice=0;
double subtotal=0;
double salesTax;
double pricePerPound;
//contructors//
public CoffeeBag( int weight, int numUnits ) {
String getWeight;
String getNumUnits;
public CoffeeBag() {
int weight; int numUnits;
//methods//
public void setUnitWeight( int weight ) {
unitWeight=weight ;
public void setNumberOfUnits( int units ) {
numberOfUnits=units;
public int getUnitWeight() {
return unitWeight;
public int getNumberOfUnits() {
return numberOfUnits;
public double getPricePerPound() {
return pricePerPound;
public double getSalesTax() {
return salesTax;
public double getSubtotal() {
return subtotal;
public double getTotalPrice() {
return totalPrice;
}

Answer 1

1) You have to tell us exactly what the problem is. People aren't going to guess, or compile and/or run your code to find out.
2) When you post code, please use [code] and [/code] tags as described in Formatting tips on the message entry page. It makes it much easier to read.