Click here to Skip to main content
14,872,753 members
Please Sign up or sign in to vote.
0.00/5 (No votes)
See more:
Would someone please give me an example of a program that increments and decrements values with just the use of combo box and buttons, no other stuffs like a JDialog or even JTable. I'm having a hard time trying to understand complicated programs after all I'm just a newbie in java, so I need a very simple one that is easy to understand.

the code is this:

Java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Scanner;

    public class EditStack {
    private JComboBox comboBox = new JComboBox();
    private JButton button = new JButton("Add Order");
    private JButton button_1 = new JButton("Decrease Order");
    JComboBox combo;
    private static String z  = "";
    private static String w  = "";
    private static String x  = "";
    private static String a  = "";
    private int numClick = 0;
    
public EditStack() {

    String mgaPagkainTo[] = {"PM1 (Paa/ Spicy Paa with Thigh part)","PM2 (Pecho)","PM3 (Pork Barbeque 4 pcs.)","PM4 (Bangus Sisig)","PM5 (Pork Sisig)","PM6 (Bangus Inihaw)","SM1 (Paa)","SM2 (Pork Barbeque 2 pcs.)","Pancit Bihon","Dinuguan at Puto","Puto","Ensaladang Talong","Softdrinks","Iced Tea","Halo-Halo","Leche Flan","Turon Split"};
    JFrame frame = new JFrame("Mang Inasal Ordering System");
    JPanel panel = new JPanel();
    combo = new JComboBox(mgaPagkainTo);
    combo.setBackground(Color.gray);
    combo.setForeground(Color.red);
    panel.add(combo);
    panel.add(button);
    panel.add(button_1);
    frame.add(panel);

    combo.addActionListener(new ActionListener(){
    public void actionPerformed(ActionEvent e){
        String str = (String)combo.getSelectedItem();
        a = str;
        EditLang messageOrder1 = new EditLang();
        messageOrder1.ShowOrderPo();
       }
    });

    button.addActionListener(new ActionListener() { //this is the part I'm stuck with
        public void actionPerformed(ActionEvent e) {
            String selectedItem = (String) comboBox.getSelectedItem(); // I want here to display the selected item in the combo box
            numClick++ // and then increment it whenever I clicked on the add button
        }
    }
    );
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(300,250);
    frame.setVisible(true);
  }

  public static void main(String[] args) {
  Scanner inp = new Scanner(System.in);
  boolean ulitinMoPows = true;
  boolean tryAgain = true;

    System.out.print("\nInput Customer Name: ");
    String customerName = inp.nextLine();
    w = customerName;
    System.out.print("\nInput Cashier Name: ");
    String user = inp.nextLine();
    z = user;
   do{
    System.out.print("\nInput either Dine In or Take Out: ");
    String dInDOut = inp.nextLine();
    x = dInDOut;
        if (x.equals("Dine In") || x.equals("Take Out")){
         System.out.print("");
         ulitinMoPows = false;
         }
        else{
         JOptionPane.showMessageDialog(null, "Try again! Please input Dine In or Take Out only!","Error", JOptionPane.ERROR_MESSAGE);
             ulitinMoPows = true;
             System.out.print ("\f");
            }
     }while(ulitinMoPows);
     do{
    System.out.print("\nInput password: ");
    String pass = inp.nextLine();
    if(pass.equals("admin")){
        EditLang messageShowMenu = new EditLang();
        messageShowMenu.ShowMo();
        tryAgain = false;
    }
    if(!pass.equals("admin")){
        JOptionPane.showMessageDialog(null, "Try again! Invalid password!","Error Logging-In", JOptionPane.ERROR_MESSAGE);
    tryAgain = true;
     System.out.print ("\f");
    }
}while(tryAgain);

EditStack j = new EditStack();
    }
  public static String kuhaOrder()
  {
  return a;
  }

  public static String kuhaUserName()
  {
  return z;
  }

  public static String kuhaCustomerName()
  {
  return w;
  }

  public static String kuhaSanKainPagkain()
  {
  return x;
  }  
}
//Class of EditLang:

public class EditLang {

public void ShowMo(){
    String user = EditStack.kuhaUserName();
    System.out.print("\n\n\t\tCashier: " +user);
    String dInDOut = EditStack.kuhaSanKainPagkain();
    System.out.print("                          "+dInDOut);
    String customerName = EditStack.kuhaCustomerName();
    System.out.print("\n\t\tCustomer Name: " +customerName);
}

public void ShowOrderPo() {
    String order = EditStack.kuhaOrder();
    System.out.print("\t\t\t\t\n " +order);

}
}
//I want to do something like that. Any help will be appreciated thanks!
Posted

1 solution

Please do not post the same question in multiple forums. Choose one and stick to it.
   

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)




CodeProject, 20 Bay Street, 11th Floor Toronto, Ontario, Canada M5J 2N8 +1 (416) 849-8900