payrollFrame.java

//import java stuff
import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JTextField;
import javax.swing.JLabel;
import javax.swing.JSpinner;
import javax.swing.JComboBox;
import javax.swing.SpinnerNumberModel;
import java.awt.Color;

public class payrollFrame extends JFrame
{
    //declares labels
    private JLabel nameLabel;
    private JLabel hoursLabel;
    private JLabel payrateLabel;
    private JLabel dependentsLabel;
    private JLabel healthLabel;
    private JLabel grossLabel;
    private JLabel fedLabel;
    private JLabel premiumLabel;
    private JLabel ficaLabel;
    private JLabel netLabel;
    //declares textfields and combobox
    private JTextField name;
    private JTextField payrate;
    private JComboBox healthPlan;
    private JTextField grossPay;
    private JTextField fedTax;
    private JTextField healthPrem;
    private JTextField fica;
    private JTextField netPay;
    //declares spinners
    private JSpinner dependentSpinner;
    private SpinnerNumberModel dependentsNumModel;
    private JSpinner.NumberEditor dependentsNumEditor;
    private JSpinner hoursSpinner;
    private SpinnerNumberModel hoursNumModel;
    private JSpinner.NumberEditor hoursNumEditor;
    //declares buttons
    private JButton calcButton;
    private JButton clearButton;
    private JButton exitbutton;
    //declares strings, ints, doubles
    private static final String[] yesNo = {"Choose","Yes", "No"};//string with choices for combo box
    private String nameString="";
    private String hoursString="";
    private String rateString="";
    private String dependentsString="";
    private String grossString="";
    private String fedString="";
    private String healthString="";
    private String ficaString="";
    private String netString="";
    private final String noFedString="0.00";
    private final String noPremNum="0.00";
    private int hoursWorked;
    private double rateNum;
    private int numDependents;
    private double grossMoney;
    private double fedNum;
    private double premiumNum;
    private int premiumSelect;
    private double ficaNum;
    private int leng=10;
    private calcOps calcMachine;

    public payrollFrame()
    {
        super("Payroll Program");
        setLayout(new FlowLayout());
        //labels and textfields, spinners, combo box
        //name
        nameLabel = new JLabel("Name    ");
        add(nameLabel);
        name = new JTextField(20);
        add(name);
        //hours
        hoursLabel = new JLabel("Hours                                                  ");
        add(hoursLabel);
        hoursNumModel = new SpinnerNumberModel(0,0,168,8);//spinner starts 0, min 0, max 168, step 8
        hoursSpinner = new JSpinner(hoursNumModel);
        add(hoursSpinner);
        hoursNumEditor = new JSpinner.NumberEditor(hoursSpinner,"######");
        hoursSpinner.setEditor(hoursNumEditor);
        //payrate
        payrateLabel = new JLabel("Payrate  ");
        add(payrateLabel);
        payrate = new JTextField(20);
        add(payrate);
        //dependents
        dependentsLabel = new JLabel("Dependents                                                ");//label
        add(dependentsLabel);
        dependentsNumModel = new SpinnerNumberModel(0,0,9,1);//spinner starts 0, min 0, max 9, step 1
        dependentSpinner = new JSpinner(dependentsNumModel);
        add(dependentSpinner);
        dependentsNumEditor = new JSpinner.NumberEditor(dependentSpinner,"######");
        dependentSpinner.setEditor(dependentsNumEditor);
        //healthplan
        healthLabel = new JLabel("Health Plan                                      ");
        add(healthLabel);
        healthPlan = new JComboBox(yesNo);
        add(healthPlan);
        healthPlan.setMaximumRowCount(3);
        //healthPlan.addItemListener();//add listener thingy stuff
        //gross pay
        grossLabel = new JLabel("Gross Pay  ");
        add(grossLabel);
        grossPay = new JTextField(20);
        grossPay.setEnabled(false);//users can't edit field
        add(grossPay);
        //fed tax
        fedLabel = new JLabel("Fed Tax      ");
        add(fedLabel);
        fedTax = new JTextField(20);
        fedTax.setEnabled(false);//users can't edit field
        add(fedTax);
        //health premium
        premiumLabel = new JLabel("Health Prem.");
        add(premiumLabel);
        healthPrem = new JTextField(20);
        healthPrem.setEnabled(false);//users can't edit field
        add(healthPrem);
        //fica
        ficaLabel = new JLabel("Fica            ");
        add(ficaLabel);
        fica = new JTextField(20);
        fica.setEnabled(false);//users can't edit field
        add(fica);
        //net pay
        netLabel = new JLabel("Net Pay      ");
        add(netLabel);
        netPay = new JTextField(20);
        netPay.setEnabled(false);//users can't edit field
        add(netPay);
        //buttons
        calcButton = new JButton("Calculate");
        add(calcButton);
        clearButton = new JButton("Clear");
        add(clearButton);
        exitbutton = new JButton("Exit");
        add(exitbutton);
        //handler
        buttonhandler myhandler = new buttonhandler();
        calcButton.addActionListener(myhandler);
        clearButton.addActionListener(myhandler);
        exitbutton.addActionListener(myhandler);
        calcMachine = new calcOps();
    }

    private class buttonhandler implements ActionListener
    {
        public void actionPerformed(ActionEvent event)
        {
            if(event.getSource() == calcButton)
            {
                //gross pay
                hoursWorked = hoursNumModel.getNumber().intValue();//gets hours from spinner
                if(hoursWorked<0)//checks if hours are negative
                    hoursWorked=0;
                if(hoursWorked>168)//checks if hours over top number of hours in a week
                    hoursWorked=168;
                rateString=payrate.getText();//gets payrate
                leng=rateString.length();
                if(leng==0)//checks if payrate is 0 or left empty
                    rateNum=0;
                else
                    rateNum=Double.parseDouble(rateString);//parses payrate to double
                if(rateNum<0)//checks if payrate is negative
                    rateNum=0;
                grossString=calcOps.findGross(hoursWorked,rateNum);//finds gross pay
                grossMoney=Double.parseDouble(grossString);//parses gross to double
                grossPay.setText(grossString);//prints gross pay
                //fed tax
                if(grossMoney>300)//checks if gross is over 300
                {
                    fedString=calcOps.findFedTax(grossMoney);//gets the federal tax
                    fedTax.setText(fedString);//sets federal tax in federal tax field
                    fedNum=Double.parseDouble(fedString);//parses fed tax to double
                }
                else//if gross not over 300
                {
                    fedTax.setText(noFedString);//prints out 0 as fed tax
                    fedNum=0.00;//fed tax set to 0
                }
                //health plan and such with dependents
                numDependents=dependentsNumModel.getNumber().intValue();//gets number from spinner
                premiumSelect=healthPlan.getSelectedIndex();//gets choice of health plan
                if(premiumSelect==1)//checks if selection is yes
                {
                    healthString=calcOps.getHealthPrem(numDependents);//uses num of depends to calculate health prem
                    healthPrem.setText(healthString);
                    premiumNum=Double.parseDouble(healthString);
                }
                else//if no or left on choose
                {
                    healthPrem.setText(noPremNum);//premium set to 0
                    premiumNum=0.00;//amount for health premium set to 0
                }
                //fica
                ficaString=calcOps.getFica(grossMoney);//uses gross to calculate fica
                fica.setText(ficaString);
                ficaNum=Double.parseDouble(ficaString);
                //net pay
                netString=calcOps.getNetPay(grossMoney, fedNum, premiumNum, ficaNum);//uses gross, fed tax, fica, health prem to calc net pay
                netPay.setText(netString);
            }
            else if(event.getSource() == clearButton)//clears all fields, resets spinners and combobox
            {
                name.setText("");//clears all fields and resets spinners and combobox
                payrate.setText("");
                grossPay.setText("");
                fedTax.setText("");
                healthPrem.setText("");
                fica.setText("");
                netPay.setText("");
                hoursSpinner.setValue(0);//set to 0
                dependentSpinner.setValue(0);//set to 0
                healthPlan.setSelectedIndex(0);//sets combobox to choose
            }
            else if(event.getSource() == exitbutton)//closes java applet
            {
                System.exit(0);
            }
            else
                System.out.println("Unknown error");
        }
    }
}