Image isn't showing up

Question

Zilna 0 Newbie Poster

12 Years Ago

I have been messing with this for 2 days now and for some reason my image will not show up. I have tried to move the code around to varying locations just to see if I am just placing it in the wrong area but nothing seems to work.

/*

* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

package mortcalc5;

import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import javax.swing.*;
import javax.swing.SwingUtilities;
import javax.swing.UIManager.LookAndFeelInfo;
import javax.swing.table.DefaultTableModel;

/**
*
* @author
*
*
*/

public class Main extends JFrame {

static String mortgage[] = { "Select Mortgage", "30 years at 5.75%", "15 years at 5.5%", "7 years at 5.35%", "Other" };
static String[] toReplace;
DecimalFormat money = new DecimalFormat("$###,###.00");

// Define the JPanel where we will draw and place all of our components.
JPanel contentPanel = null;

// GUI elements to display labels, fields, table, scroll pane for current information
JLabel main_title = null;
JLabel principal_label = null;
JTextField principal_text = null;
JLabel years_label = null;
JTextField years_text = null;
JLabel rate_label = null;
JTextField rate_text = null;
JLabel choose_label = null;
JComboBox choose_combo = null;
JRadioButton rbutton01 = null;
JRadioButton rbutton02 = null;
ButtonGroup buttongroup = null;
private static JLabel image1 = null;

// GUI text area for results with scroll pane
JTextArea result = null;
JScrollPane scrolling_result = null;

// GUI for Table with scroll pane
MyJTable total_amounts = null;
JScrollPane scrolling_table = null;
MyDTableModel model;

// Creates the button for calculation of the mortgage payments
JButton btnCalculate = null;

// Creates a button for reset button
JButton btnReset = null;

// Declaration of variables
    int numberOfLinesGenerated=1;
    int number_years; //term mortgage
    double principal; // amount borrowed
    double interest_rate;  // interest for mortgage
    double monthly_payment;  // monthly payment for mortgage
    double monthly_interest_rate ; // monthly interest
    int number_of_months; // number of months for mortgage payments
    double interest_paid; //interest amount added for each month
    double principal_paid;

// This is the class constructor - initialize the components
public Main() {
    super();
    initialize();

}

// Window size, JPanel, setTitle
public void initialize() {
    this.setSize(710, 730);
    this.setResizable(false);
    this.setContentPane(getJPanel());
    this.setTitle("McBride Financial");

}

public JPanel getJPanel() {
    if (contentPanel == null) {
        contentPanel = new JPanel();
        contentPanel.setLayout(null);
        contentPanel.setBackground(Color.blue);

        // GUI elements to display labels and fields for current information
        // to include Alignment, Boundary, Title, Font, Font Size, Color
        // Main Title of the Calculator
        main_title = new JLabel();
        main_title.setHorizontalAlignment(SwingConstants.CENTER);
        main_title.setBounds(130, 20, 400, 30);
        main_title.setText("Loan Amortization Calculator");
        main_title.setFont(new Font("Arial", Font.BOLD, 25));
        main_title.setForeground(Color.white);
        contentPanel.add(main_title);

        //image
        //image1 = new JLabel(createImageIcon("DownGraph.jpg"));
        //contentPanel.add(image1, BorderLayout.EAST);

        //image
        Icon Graph = new ImageIcon(getClass().getResource("DownGraph.jpg"));
        image1 = new JLabel();
        image1.setIcon(Graph);
        add(image1);

        // Principal Label
        principal_label = new JLabel();
        principal_label.setHorizontalAlignment(SwingConstants.RIGHT);
        principal_label.setBounds(90, 65, 220, 25);
        principal_label.setText("Mortgage Principle Amount : ");
        principal_label.setFont(new Font("Arial", Font.BOLD, 13));
        principal_label.setForeground(Color.white);
        contentPanel.add(principal_label);

        // Principal Text Field Features
        principal_text = new JTextField();
        principal_text.setBounds(350, 65, 160, 25);
        contentPanel.add(principal_text);

        // Mortgage Plan Label
        choose_label = new JLabel();
        choose_label.setHorizontalAlignment(SwingConstants.RIGHT);
        choose_label.setBounds(90, 125, 220, 25);
        choose_label.setText("Select Mortgage Plan : ");
        choose_label.setFont(new Font("Arial", Font.BOLD, 13));
        choose_label.setForeground(Color.white);
        contentPanel.add(choose_label);

        // String for Mortgage Variation
        String mortgage[] = { "Select Mortgage", "30 years at 5.75%","15 years at 5.5%", "7 years at 5.35%", "Other" };
        choose_combo = new JComboBox(mortgage);
        choose_combo.setBounds(350, 125, 180, 30);
        choose_combo.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent event) {
                setMortgage();
            }
        });

        contentPanel.add(choose_combo);


        // Text Area for result
        result = new JTextArea(5, 20);
        result.setBounds(170, 250, 350, 75);
        scrolling_result = new JScrollPane(result);
        contentPanel.add(result);

        //Table for amortization calculations
     total_amounts = new MyJTable();
     scrolling_table = new JScrollPane (total_amounts);
     scrolling_table.setBounds(25, 450, 650, 200);
     contentPanel.add(scrolling_table);

     // Number of Years Label
        years_label = new JLabel();
        years_label.setHorizontalAlignment(SwingConstants.RIGHT);
        years_label.setBounds(90, 200, 220, 25);
        years_label.setText("Mortgage Term : ");
        years_label.setFont(new Font("Arial", Font.BOLD, 13));
        years_label.setForeground(Color.white);
        contentPanel.add(years_label);

        // Number of Years Text Field
        years_text = new JTextField();
        years_text.setBounds(350, 205, 160, 25);
        contentPanel.add(years_text);

        // Annual Interest Rate Label
        rate_label = new JLabel();
        rate_label.setHorizontalAlignment(SwingConstants.RIGHT);
        rate_label.setBounds(90, 165, 220, 25);
        rate_label.setText("Annual Interest Rate(Decimal) : ");
        rate_label.setFont(new Font("Arial", Font.BOLD, 13));
        rate_label.setForeground(Color.white);
        contentPanel.add(rate_label);

        // Annual Interest Rate Text Field
        rate_text = new JTextField();
        rate_text.setBounds(350, 165, 160, 25);
        contentPanel.add(rate_text);

        // Button for reset button
        btnReset = new JButton();
        btnReset.setBounds(355, 350, 110, 30);
        btnReset.setText("Reset");
        contentPanel.add(btnReset);

       // Button for calculation of the mortgage payments
        btnCalculate = new JButton();
        btnCalculate.setBounds(245, 350, 110, 30);
        btnCalculate.setText("Calculate");
        contentPanel.add(btnCalculate);

        // Action listener to the reset button
        btnReset.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                onButtonreset();
            }
        });

        btnCalculate.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                principal=getDouble(principal_text.getText());
                calculate();
            {

        //Gets the values from the combo box
     String str = (String)choose_combo.getSelectedItem();
       if (str.equals("30 years at 5.75%")) {
        interest_rate = 0.0575;
        number_years = 30;
              }

        else
       if(str.equals("15 years at 5.5%")) {
       interest_rate = 0.055;
       number_years = 15;
                }

       else
       if(str.equals("7 years at 5.35%")) {
       interest_rate = 0.0535;
       number_years = 15;
            }

       else
           if (str.equals("Other")){
              interest_rate = Double.parseDouble(rate_text.getText());
              number_years = Integer.parseInt(years_text.getText());
           }
             }

         //Calculates the number of months for mortgage
                number_of_months = number_years * 12;

      //Caluclates the monthly interest rate
                monthly_interest_rate = interest_rate/12.0;

      //Calculates the monthly payment for mortgage
                monthly_payment = (principal* monthly_interest_rate)/(1 - Math.pow(1 + monthly_interest_rate, -number_of_months));

               // Sets the result text
                result.setText("Loan Amount = " + money.format(principal)
                +"\nInterest Rate = " + (interest_rate * 100) +"%"+"\nLength of Loan = "
                + Math.round(number_years * 12.0) + " months"+"\nMonthly Payment = "
                + money.format(monthly_payment)); //calling the monthly_payment

                // Have the necessary information for the model lets recalculate it.
                if(total_amounts != null){
                    total_amounts.setModel(getModel());
                }
            }
        });

        //Adds the calculate button
        contentPanel.add(btnCalculate);

        //Adds the scroll pane
        contentPanel.add(getScrollPane());
    }

    return contentPanel;
}

//setMortgage Calculation//

public void setMortgage() {
    String str = (String) choose_combo.getSelectedItem();
    if (str.equals("30 years at 5.75%")) {
        rate_text.setText("0.0575");
        years_text.setText("30");
        }

    else
  if(str.equals("15 years at 5.5%")) {
     rate_text.setText("0.055");
     years_text.setText("15");
                }

  else
  if(str.equals("7 years at 5.35%")) {
     rate_text.setText("0.0535");
     years_text.setText("7");
    }

  else
      if(str.equals("Other")){
          rate_text.setText("");
          years_text.setText("");
      }
}

// Information for Reset Button//
public void onButtonreset() {
principal_text.setText("");
result.setText("");
rate_text.setText("");
years_text.setText("");
}

// Calculate() call//

public void calculate() {

    double principal = getDouble(principal_text.getText());
    int number_of_years = Integer.parseInt(years_text.getText());
    double interest_rate = getDouble(rate_text.getText());
    if(interest_rate > 1.0)interest_rate = interest_rate/100.0;

    // Calculates the number of months for mortgage so as to determine the number of payments to be made
                int number_of_months = number_of_years * 12;

    // Calulates the monthly interest rate
                double monthly_interest_rate = interest_rate / 12.0;

    // Equation that calculates the monthly payment for mortgage
                double monthly_payment = (principal * monthly_interest_rate)/ (1 - Math.pow(1 + monthly_interest_rate, -number_of_months));

    // Sets the result text
    result.setText("Loan Amount = " + money.format(principal)
            + "\nInterest Rate = " + (interest_rate * 100) + "%"
            + "\nLength of Loan = " + Math.round(number_of_years * 12.0)
            + " months" + "\nMonthly Payment = "
            + money.format(monthly_payment)); // calling the monthly payment
}

// This the Scroll pane for the table - sets the boundaries//
public JScrollPane getScrollPane() {
if (scrolling_table == null) {
scrolling_table = new JScrollPane();
scrolling_table.setBounds(65, 225, 425, 120);
scrolling_table.setViewportView(getTable());
}

    return scrolling_table;
}

public JTable getTable() {
    if (total_amounts == null) {
            total_amounts = new MyJTable(getModel());
   }

    return total_amounts;
}

//This will calculate the model for the table//
public MyDTableModel getModel() {
String[] columnNames = {"Payment #", "Starting Balance", "Monthly Payment","Interest Paid","Principal Paid", "Ending Balance"};
model = null;
model = new MyDTableModel();

    for (int i = 0; i < 6; i++) {
        model.addColumn(columnNames[i]);
    }

    // Data to calculate the table
    if (principal > 0 && interest_rate != 0 && number_years != 0) {
        double new_principal = principal;
        NumberFormat nf = NumberFormat.getCurrencyInstance();

        for (int i = 0; i < number_of_months; i++) {
            Object data[] = new Object[6];
            data[0] = Integer.toString(i + 1);
            data[1] = nf.format(new_principal);
            data[2] = nf.format(monthly_payment);
            data[3] = nf.format(interest_paid = principal * monthly_interest_rate);
            data[4] = nf.format(principal_paid = monthly_payment - interest_paid);
            data[5] = nf.format(principal = principal - principal_paid);
            new_principal = principal;

            model.addRow(data);
        }
    }

    return model;
}

 public double getDouble(String val) {
    double value = 00;
    try {

        // This tests to see if there is a dollar sign
        if (val.indexOf('$') > -1) {
            value = NumberFormat.getCurrencyInstance().parse(val)
                    .doubleValue();

        } else {
            value = NumberFormat.getNumberInstance().parse(val)
                    .doubleValue();
        }
    } catch (java.text.ParseException e) {

        // Generates an error here
        JOptionPane.showMessageDialog(this, "There is an error " + val
                + ". Please check your entry", "Data Entry Error",
                JOptionPane.ERROR_MESSAGE);
    }
    return value;
}

public double getPercent(String val) {
    boolean isPercent = false;
    double value = 0;
    try {
        if (val.indexOf('%') > -1) {
            value = NumberFormat.getPercentInstance().parse(val).doubleValue();
            isPercent = true;

        } else {
            value = NumberFormat.getNumberInstance().parse(val).doubleValue();
        }
    } catch (java.text.ParseException e) {
        JOptionPane.showMessageDialog(this, "There is an error " + val + ". Please check your entry", "Data Entry Error",
                JOptionPane.ERROR_MESSAGE);
    }

    // Have a percentage already in decimal format
    if (!isPercent)
        value = value / 100.0;
    return value;
}

// main method
public static void main(String[] args) {

    // Using Nimbus "Look and Feel" to make the layout more appealing
    try {
        for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
            if ("Nimbus".equals(info.getName())) {
                UIManager.setLookAndFeel(info.getClassName());
                break;
            }
        }
    } catch (UnsupportedLookAndFeelException e) {

        // handle exception
   } catch (ClassNotFoundException e) {

        // handle exception
 } catch (InstantiationException e) {

        // handle exception
    } catch (IllegalAccessException e) {

        // handle exception
    }


    SwingUtilities.invokeLater(new Runnable() {

        public void run() {
            Main thisClass = new Main();
            thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            thisClass.setVisible(true);
        }
    });
}

class MyDTableModel extends DefaultTableModel {

    public Class<? extends Object> getColumnClass(int c) {
        return getValueAt(0, c).getClass();
    }
}

//This class adds the table to the JFrame
class MyJTable extends JTable {

    public MyJTable(){
        super();
    }

    public MyJTable(DefaultTableModel m){
        super(m);
    }
}

//private static ImageIcon createImageIcon(String fileName) {
  //  java.net.URL imgURL = Main.class.getResource(fileName);
   // return new ImageIcon(imgURL);

// }
}//End Program

java

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3 Replies
196 Views
2 Hours Discussion Span
Latest Post 12 Years Ago Latest Post by NormR1

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NormR1 563 Posting Sage

12 Years Ago

for some reason my image will not show up.

Is your only problem with the image? If that is the only problem, you have posted TOO MUCH code.
Make a small simple testing program to work on the image loading problem. Something that will compile, execute and show the problem.

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Zilna 0 Newbie Poster · Answer 1 · 2012-04-15T16:59:34+00:00

I am more lost now that I was 4 weeks ago. I have created a brand new file just for the purposes of displaying an image and can get it to work beautifully there but it won't work in this program even when replicating the code.

NormR1 563 Posting Sage Team Colleague · Answer 2 · 2012-04-15T17:53:25+00:00

Make a copy of this hugh program and start deleting code that is not part of the problem. Maybe you can reduce it to a small test program that shows the problem.

For testing replace the image with text and see if the label with text will display.

Image isn't showing up

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