How to collect Java input field value display into Jtable?

<p>We would like to know how to collection input field data into Jtable with the following format. Please advise.</p>

<ol>
<li>text field - input amount</li>
<li>text year - input year</li>
<li>text rate - input interest rate</li>
<li>text Result - Display result into Jtable</li>
</ol>

<p>Jtable</p>

<h1>Amount Year  Rate  Interest  Total</h1>

<p>1  1,000   5    5.0%   250.0   1,250.0
2    500   8    4.0%   160.0     660.0
3  1,500   7    3.5%   367.5   1,867.5
4  2,000   4    6.5%   520.0   2,520.0</p>
View Answers

January 19, 2011 at 11:12 AM

Hi Friend,

Try this:

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.table.*;

public class SimpleInterestTable extends JFrame {
  private DefaultTableModel model;

  private JTable table;
  private JScrollPane pane;
  public SimpleInterestTable() {
    setLayout(null);
    final JLabel lab1=new JLabel("Amount");
    final JLabel lab2=new JLabel("Year");
    final JLabel lab3=new JLabel("Rate");
    final JLabel result=new JLabel("Interest");
    final JTextField text1=new JTextField(20);
    final JTextField text2=new JTextField(20);
    final JTextField text3=new JTextField(20);
    final JTextField text=new JTextField(20);

    JButton b=new JButton("Calculate");
    model = new DefaultTableModel();
    model.addColumn("Amount");
    model.addColumn("Year");
    model.addColumn("Rate");
    model.addColumn("Interest");
    model.addColumn("Total");

     b.addActionListener(new ActionListener(){
        public void actionPerformed(ActionEvent e){
        pane.setVisible(true);
        double p=Double.parseDouble(text1.getText());
        double t=Double.parseDouble(text3.getText());
        double r=Double.parseDouble(text2.getText())/100;

        double si=p*r*t;
        text.setText(Double.toString(si));
        double tot=p+si;

    String[] data = {Double.toString(p),Double.toString(t),text3.getText()+"%",Double.toString(si),Double.toString(tot)};
    model.addRow(data);
    }
    });
    table = new JTable(model);
    pane=new JScrollPane(table);
    lab1.setBounds(10,10,100,20);
    text1.setBounds(120,10,100,20);
    lab2.setBounds(10,40,100,20);
    text2.setBounds(120,40,100,20);
    lab3.setBounds(10,70,100,20);
    text3.setBounds(120,70,100,20);
    result.setBounds(10,100,100,20);
    text.setBounds(120,100,100,20);
    b.setBounds(120,130,100,20);
    pane.setBounds(10,160,450,100);
    add(lab1);
    add(text1);
    add(lab2);
    add(text2);
    add(lab3);
    add(text3);
    add(result);
    add(text);
    add(pane);
    add(b);
    pane.setVisible(false);
    setVisible(true);
    setSize(500,300);
    } 
  public static void main(String args[]) {
    new SimpleInterestTable();
  }
}

Thanks


January 19, 2011 at 1:47 PM

Please advise in the GUI as the following information. - display the value in the JTable.

If in the GUI as per view of ![alt text][1]

[1]: https://docs.google.com/leaf?id=0B3b1RiEgJA39OGE1NzFmNjktNTcxNi00OTc1LThiOWYtNTZkM2MzNjYxZWJj&hl=en, and the created code as the following...

Program Name : BankLoadView.java

/* * BankLoanView.java */

package bankloan;

import java.awt.Color; import org.jdesktop.application.Action; import org.jdesktop.application.ResourceMap; import org.jdesktop.application.SingleFrameApplication; import org.jdesktop.application.FrameView; import org.jdesktop.application.TaskMonitor; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.Timer; import javax.swing.Icon; import javax.swing.JDialog; import javax.swing.JFrame; import javax.swing.JTable;

/** * The application's main frame. */ public class BankLoanView extends FrameView {

public BankLoanView(SingleFrameApplication app) { super(app);

    initComponents();

    // status bar initialization - message timeout, idle icon and busy animation, etc
    ResourceMap resourceMap = getResourceMap();
    int messageTimeout = resourceMap.getInteger("StatusBar.messageTimeout");
    messageTimer = new Timer(messageTimeout, new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            statusMessageLabel.setText("");
        }
    });
    messageTimer.setRepeats(false);
    int busyAnimationRate = resourceMap.getInteger("StatusBar.busyAnimationRate");
    for (int i = 0; i < busyIcons.length; i++) {
        busyIcons[i] = resourceMap.getIcon("StatusBar.busyIcons[" + i + "]");
    }
    busyIconTimer = new Timer(busyAnimationRate, new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            busyIconIndex = (busyIconIndex + 1) % busyIcons.length;
            statusAnimationLabel.setIcon(busyIcons[busyIconIndex]);
        }
    });
    idleIcon = resourceMap.getIcon("StatusBar.idleIcon");
    statusAnimationLabel.setIcon(idleIcon);
    progressBar.setVisible(false);

    // connecting action tasks to status bar via TaskMonitor
    TaskMonitor taskMonitor = new TaskMonitor(getApplication().getContext());
    taskMonitor.addPropertyChangeListener(new java.beans.PropertyChangeListener() {
        public void propertyChange(java.beans.PropertyChangeEvent evt) {
            String propertyName = evt.getPropertyName();
            if ("started".equals(propertyName)) {
                if (!busyIconTimer.isRunning()) {
                    statusAnimationLabel.setIcon(busyIcons[0]);
                    busyIconIndex = 0;
                    busyIconTimer.start();
                }
                progressBar.setVisible(true);
                progressBar.setIndeterminate(true);
            } else if ("done".equals(propertyName)) {
                busyIconTimer.stop();
                statusAnimationLabel.setIcon(idleIcon);
                progressBar.setVisible(false);
                progressBar.setValue(0);
            } else if ("message".equals(propertyName)) {
                String text = (String)(evt.getNewValue());
                statusMessageLabel.setText((text == null) ? "" : text);
                messageTimer.restart();
            } else if ("progress".equals(propertyName)) {
                int value = (Integer)(evt.getNewValue());
                progressBar.setVisible(true);
                progressBar.setIndeterminate(false);
                progressBar.setValue(value);
            }
        }
    });
}

@Action
public void showAboutBox() {
    if (aboutBox == null) {
        JFrame mainFrame = BankLoanApp.getApplication().getMainFrame();
        aboutBox = new BankLoanAboutBox(mainFrame);
        aboutBox.setLocationRelativeTo(mainFrame);
    }
    BankLoanApp.getApplication().show(aboutBox);
}

/** This method is called from within the constructor to
 * initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is
 * always regenerated by the Form Editor.
 */
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {

    mainPanel = new javax.swing.JPanel();
    jLabel1 = new javax.swing.JLabel();
    jLabel2 = new javax.swing.JLabel();
    jLabel3 = new javax.swing.JLabel();
    jLabel4 = new javax.swing.JLabel();
    txtAmount = new javax.swing.JTextField();
    txtYears = new javax.swing.JTextField();
    txtInterest = new javax.swing.JTextField();
    btnDisplay = new javax.swing.JButton();
    jScrollPane1 = new javax.swing.JScrollPane();
    javax.swing.JTable jTable = new javax.swing.JTable();
    txtResult = new java.awt.TextArea();
    menuBar = new javax.swing.JMenuBar();
    javax.swing.JMenu fileMenu = new javax.swing.JMenu();
    javax.swing.JMenuItem exitMenuItem = new javax.swing.JMenuItem();
    javax.swing.JMenu helpMenu = new javax.swing.JMenu();
    javax.swing.JMenuItem aboutMenuItem = new javax.swing.JMenuItem();
    statusPanel = new javax.swing.JPanel();
    javax.swing.JSeparator statusPanelSeparator = new javax.swing.JSeparator();
    statusMessageLabel = new javax.swing.JLabel();
    statusAnimationLabel = new javax.swing.JLabel();
    progressBar = new javax.swing.JProgressBar();

    mainPanel.setName("mainPanel"); // NOI18N

    org.jdesktop.application.ResourceMap resourceMap = org.jdesktop.application.Application.getInstance(bankloan.BankLoanApp.class).getContext().getResourceMap(BankLoanView.class);
    jLabel1.setFont(resourceMap.getFont("txtYears.font")); // NOI18N
    jLabel1.setText(resourceMap.getString("jLabel1.text")); // NOI18N
    jLabel1.setName("jLabel1"); // NOI18N

    jLabel2.setFont(resourceMap.getFont("lblAmt.font")); // NOI18N
    jLabel2.setText(resourceMap.getString("lblAmt.text")); // NOI18N
    jLabel2.setName("lblAmt"); // NOI18N

    jLabel3.setFont(resourceMap.getFont("txtYears.font")); // NOI18N
    jLabel3.setText(resourceMap.getString("lblYears.text")); // NOI18N
    jLabel3.setName("lblYears"); // NOI18N

    jLabel4.setFont(resourceMap.getFont("txtYears.font")); // NOI18N
    jLabel4.setText(resourceMap.getString("lblRate.text")); // NOI18N
    jLabel4.setName("lblRate"); // NOI18N

    txtAmount.setFont(resourceMap.getFont("txtYears.font")); // NOI18N
    txtAmount.setText(resourceMap.getString("txtAmt.text")); // NOI18N
    txtAmount.setName("txtAmt"); // NOI18N

    txtYears.setFont(resourceMap.getFont("txtYears.font")); // NOI18N
    txtYears.setText(resourceMap.getString("txtYears.text")); // NOI18N
    txtYears.setName("txtYears"); // NOI18N

    txtInterest.setFont(resourceMap.getFont("txtYears.font")); // NOI18N
    txtInterest.setText(resourceMap.getString("txtInterest.text")); // NOI18N
    txtInterest.setName("txtInterest"); // NOI18N

    btnDisplay.setFont(resourceMap.getFont("txtYears.font")); // NOI18N
    btnDisplay.setText(resourceMap.getString("btnDisplay.text")); // NOI18N
    btnDisplay.setName("btnDisplay"); // NOI18N
    btnDisplay.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            btnDisplayActionPerformed(evt);
        }
    });

    jScrollPane1.setName("jScrollPane1"); // NOI18N

    jTable.setFont(resourceMap.getFont("jTable.font")); // NOI18N
    jTable.setModel(new javax.swing.table.DefaultTableModel(
        new Object [][] {
            {null, null, null, null},
            {null, null, null, null},
            {null, null, null, null},
            {null, null, null, null},
            {null, null, null, null},
            {null, null, null, null},
            {null, null, null, null}
        },
        new String [] {
            "Payment#", "Interest", "Principal", "Balance"
        }
    ) {
        Class[] types = new Class [] {
            java.lang.Object.class, java.lang.Float.class, java.lang.Float.class, java.lang.Double.class
        };

        public Class getColumnClass(int columnIndex) {
            return types [columnIndex];
        }
    });
    jTable.setName("jTable"); // NOI18N
    jScrollPane1.setViewportView(jTable);
    jTable.getColumnModel().getColumn(0).setHeaderValue(resourceMap.getString("jTable.columnModel.title0")); // NOI18N
    jTable.getColumnModel().getColumn(1).setHeaderValue(resourceMap.getString("jTable.columnModel.title1")); // NOI18N
    jTable.getColumnModel().getColumn(2).setHeaderValue(resourceMap.getString("jTable.columnModel.title2")); // NOI18N
    jTable.getColumnModel().getColumn(3).setHeaderValue(resourceMap.getString("jTable.columnModel.title3")); // NOI18N

    txtResult.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
    txtResult.setName("txtResult"); // NOI18N

    javax.swing.GroupLayout mainPanelLayout = new javax.swing.GroupLayout(mainPanel);
    mainPanel.setLayout(mainPanelLayout);
    mainPanelLayout.setHorizontalGroup(
        mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(mainPanelLayout.createSequentialGroup()
            .addGap(18, 18, 18)
            .addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addComponent(jLabel1)
                .addGroup(mainPanelLayout.createSequentialGroup()
                    .addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addComponent(jLabel4)
                        .addComponent(jLabel2)
                        .addComponent(jLabel3))
                    .addGap(13, 13, 13)
                    .addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                        .addComponent(txtInterest, javax.swing.GroupLayout.DEFAULT_SIZE, 221, Short.MAX_VALUE)
                        .addComponent(txtYears, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 221, Short.MAX_VALUE)
                        .addComponent(txtAmount, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 221, Short.MAX_VALUE))))
            .addGap(28, 28, 28)
            .addComponent(txtResult, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(btnDisplay)
            .addGap(27, 27, 27))
        .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 687, Short.MAX_VALUE)
    );
    mainPanelLayout.setVerticalGroup(
        mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(mainPanelLayout.createSequentialGroup()
            .addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, mainPanelLayout.createSequentialGroup()
                    .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(btnDisplay)
                    .addGap(48, 48, 48))
                .addGroup(mainPanelLayout.createSequentialGroup()
                    .addContainerGap()
                    .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 15, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                    .addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addComponent(txtAmount, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGroup(mainPanelLayout.createSequentialGroup()
                            .addGap(4, 4, 4)
                            .addComponent(jLabel2)
                            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                            .addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                                .addComponent(jLabel3)
                                .addComponent(txtYears, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                            .addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                                .addComponent(jLabel4)
                                .addComponent(txtInterest, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))))
                    .addGap(10, 10, 10))
                .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, mainPanelLayout.createSequentialGroup()
                    .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(txtResult, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(19, 19, 19)))
            .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 124, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addContainerGap(312, Short.MAX_VALUE))
    );

    menuBar.setName("menuBar"); // NOI18N

    fileMenu.setText(resourceMap.getString("fileMenu.text")); // NOI18N
    fileMenu.setName("fileMenu"); // NOI18N

    javax.swing.ActionMap actionMap = org.jdesktop.application.Application.getInstance(bankloan.BankLoanApp.class).getContext().getActionMap(BankLoanView.class, this);
    exitMenuItem.setAction(actionMap.get("quit")); // NOI18N
    exitMenuItem.setName("exitMenuItem"); // NOI18N
    fileMenu.add(exitMenuItem);

    menuBar.add(fileMenu);

    helpMenu.setText(resourceMap.getString("helpMenu.text")); // NOI18N
    helpMenu.setName("helpMenu"); // NOI18N

    aboutMenuItem.setAction(actionMap.get("showAboutBox")); // NOI18N
    aboutMenuItem.setName("aboutMenuItem"); // NOI18N
    helpMenu.add(aboutMenuItem);

    menuBar.add(helpMenu);

    statusPanel.setName("statusPanel"); // NOI18N

    statusPanelSeparator.setName("statusPanelSeparator"); // NOI18N

    statusMessageLabel.setName("statusMessageLabel"); // NOI18N

    statusAnimationLabel.setHorizontalAlignment(javax.swing.SwingConstants.LEFT);
    statusAnimationLabel.setName("statusAnimationLabel"); // NOI18N

    progressBar.setName("progressBar"); // NOI18N

    javax.swing.GroupLayout statusPanelLayout = new javax.swing.GroupLayout(statusPanel);
    statusPanel.setLayout(statusPanelLayout);
    statusPanelLayout.setHorizontalGroup(
        statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(statusPanelSeparator, javax.swing.GroupLayout.DEFAULT_SIZE, 687, Short.MAX_VALUE)
        .addGroup(statusPanelLayout.createSequentialGroup()
            .addContainerGap()
            .addComponent(statusMessageLabel)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 517, Short.MAX_VALUE)
            .addComponent(progressBar, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(statusAnimationLabel)
            .addContainerGap())
    );
    statusPanelLayout.setVerticalGroup(
        statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(statusPanelLayout.createSequentialGroup()
            .addComponent(statusPanelSeparator, javax.swing.GroupLayout.PREFERRED_SIZE, 2, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addGroup(statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(statusMessageLabel)
                .addComponent(statusAnimationLabel)
                .addComponent(progressBar, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addGap(3, 3, 3))
    );

    setComponent(mainPanel);
    setMenuBar(menuBar);
    setStatusBar(statusPanel);
}// </editor-fold>

private void btnDisplayActionPerformed(java.awt.event.ActionEvent evt) {                                           
    float amount = Float.parseFloat(txtAmount.getText());
    int year = Integer.parseInt(txtYears.getText());
    float interest = Float.parseFloat(txtInterest.getText());
    BankAccount bk = new BankAccount(amount, year, interest);
    String a = "      ";

    for (int  i = 0; i < year; i++) {
    bk.Calculate(amount, i, interest);

     txtResult.append(String.valueOf(bk.getBalance()+"\n"));    //String.valueOf()  changes double value into a string
    }
     // txtResult.setText(null);
}                                          

// Variables declaration - do not modify
private javax.swing.JButton btnDisplay;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JPanel mainPanel;
private javax.swing.JMenuBar menuBar;
private javax.swing.JProgressBar progressBar;
private javax.swing.JLabel statusAnimationLabel;
private javax.swing.JLabel statusMessageLabel;
private javax.swing.JPanel statusPanel;
private javax.swing.JTextField txtAmount;
private javax.swing.JTextField txtInterest;
private java.awt.TextArea txtResult;
private javax.swing.JTextField txtYears;
// End of variables declaration

private final Timer messageTimer;
private final Timer busyIconTimer;
private final Icon idleIcon;
private final Icon[] busyIcons = new Icon[15];
private int busyIconIndex = 0;

private JDialog aboutBox;

}

In the Class Name: BankAccount.java package bankloan;

public class BankAccount {
    private float amount;
    private int year;
    private float interest;
    private double balance;
    public BankAccount() {}
    public BankAccount(float Amt, int yr, float interest) {
        float Amount = Amt;
        int Year = yr;
        float Interest = interest;
}
public void Calculate (float Amt, int yr, float interest ) {
    float in = 1 + interest / 100;
    balance = Amt*( Math.pow(in, yr));
}
public double getBalance() { return balance; }

}

*End of Code


January 19, 2011 at 1:51 PM

The GUI View print screen as the following link...

https://docs.google.com/leaf?id=0B3b1RiEgJA39OGE1NzFmNjktNTcxNi00OTc1LThiOWYtNTZkM2MzNjYxZWJj&sort=name&layout=list&num=50

Please advise....









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