desktop application

Question

anuj6928 5 Junior Poster in Training

13 Years Ago

hey... hi there .. i m currently using NetBeans for creating A simple desktop application in java,,,, so in the registration page.. i m getting some errors

my code is

import java.sql.*;
import java.lang.*;
       /*
 * register1.java
 *
 * Created on September 7, 2010, 10:59 AM
 */



/**
 *
 * @author  ASPHire
 */
public class register1 extends javax.swing.JFrame {
    private Object request;
    private Object st;

    /** Creates new form register1 */
    public register1() {
        initComponents();
    }

    /** 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.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        jLabel5 = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jTextField1 = new javax.swing.JTextField();
        jTextField2 = new javax.swing.JTextField();
        jTextField3 = new javax.swing.JTextField();
        jTextField4 = new javax.swing.JTextField();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jLabel1.setText("REGISTERATION ");

        jLabel2.setText("NAME");

        jLabel3.setText("MAIL ID");

        jLabel4.setText("COUNTRY");

        jLabel5.setText("COMPANY");

        jButton1.setText("SUBMIT");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setText("RESET");

        jTextField1.setName("NAME"); // NOI18N

        jTextField2.setName("MAIL_ID"); // NOI18N

        jTextField3.setName("COUNTRY"); // NOI18N

        jTextField4.setName("COMPANY"); // NOI18N

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addComponent(jButton1)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 58, Short.MAX_VALUE)
                                .addComponent(jLabel1)
                                .addGap(179, 179, 179))
                            .addGroup(layout.createSequentialGroup()
                                .addGap(58, 58, 58)
                                .addComponent(jButton2)
                                .addContainerGap())))
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jLabel2)
                            .addComponent(jLabel3)
                            .addComponent(jLabel4)
                            .addComponent(jLabel5))
                        .addGap(51, 51, 51)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 111, Short.MAX_VALUE)
                            .addComponent(jTextField2, javax.swing.GroupLayout.DEFAULT_SIZE, 111, Short.MAX_VALUE)
                            .addComponent(jTextField3, javax.swing.GroupLayout.DEFAULT_SIZE, 111, Short.MAX_VALUE)
                            .addComponent(jTextField4, javax.swing.GroupLayout.DEFAULT_SIZE, 111, Short.MAX_VALUE))
                        .addContainerGap(179, javax.swing.GroupLayout.PREFERRED_SIZE))))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel3)
                    .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel4)
                    .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabel5)
                    .addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1)
                    .addComponent(jButton2))
                .addContainerGap(122, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
   try
        {
        String NAME=request.getParameter("NAME"); 
     String MAIL_ID=request.getParameter("MAIL_ID");
     String COUNTRY=request.getParameter("COUNTRY");
     String COMPANY=request.getParameter("COMPANY");

                Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

        Connection con=DriverManager.getConnection("Jdbc:Odbc:Hotel");

    //  Statement st=con.createStatement();
        PreparedStatement st=con.prepareStatement("insert into REG1(NAME,MAIL_ID,COUNTRY,COMPANY) values(?,?,?,?)");

        st.setString(1,NAME);
        st.setString(2,MAIL_ID);
        st.setString(3,COUNTRY);
        st.setString(4,COMPANY);
  st.executeUpdate();  } 
   catch(Exception e)
        {

            System.out.println(e);
        }
             ;// TODO add your handling code here:
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new register1().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField2;
    private javax.swing.JTextField jTextField3;
    private javax.swing.JTextField jTextField4;
    // End of variables declaration

}

and HOW COULD i create a dsn NAME as in normal ar there is some special case for NETBEANS

java

Edited 11 Years Ago by Nick Evan because: Fixed formatting

4 Contributors
19 Replies
153 Views
3 Days Discussion Span
Latest Post 13 Years Ago Latest Post by coil

All 19 Replies

Akill10 96 Posting Pro

13 Years Ago

can you post the above code in the

tags please. Its easier to see

Akill10 96 Posting Pro

13 Years Ago

It may be because you are trying to assign an object to a String, instead of assigning that String to the object. what happens if you had

String NAME;
 request.getParameter("NAME") = NAME;

Don't even know if that makes sense my friend! :)

Edited 13 Years Ago by Akill10 because: n/a

Akill10 96 Posting Pro

13 Years Ago

Same error?

coil

13 Years Ago

It may be because you are trying to assign an object to a String, instead of assigning that String to the object. what happens if you had
String NAME;
 request.getParameter("NAME") = NAME;
Don't even know if that makes sense my friend! :)

No, the original syntax was correct. String name=request.getParameter("NAME") should work given the following:
1. "request" is a valid variable.
2. The class that "request" is an instance of has a getParameter method which a) takes a String argument and b) returns a String.

Check that you've satisfied the above.

Akill10 96 Posting Pro

13 Years Ago

No, the original syntax was correct. String name=request.getParameter("NAME") should work given the following:
1. "request" is a valid variable.
2. The class that "request" is an instance of has a getParameter method which a) takes a String argument and b) returns a String.
Check that you've satisfied the above.

Do you know any examples of what I said where I would be correct? Any scenarios you can think of off your head? I remember a teacher telling me i needed to switch the expressions on each side to fix a problem I had before.

Reply to this topic

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.

anuj6928 5 Junior Poster in Training · Answer 1 · 2010-09-07T01:22:48+00:00

anuj6928 5 Junior Poster in Training

13 Years Ago

see this snap shot....

anuj6928 5 Junior Poster in Training · Answer 2 · 2010-09-07T02:40:14+00:00

anuj6928 5 Junior Poster in Training

13 Years Ago

ok...

anuj6928 5 Junior Poster in Training · Answer 3 · 2010-09-07T02:46:55+00:00

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
   try
        {
      String NAME= request.getParameter("NAME"); // got error here
     String MAIL_ID= request.getParameter("MAIL_ID");// got error here
     String COUNTRY= request.getParameter("COUNTRY");// got error here
    String COMPANY= request.getParameter("COMPANY");// got error here

                Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

        Connection con=DriverManager.getConnection("Jdbc:Odbc:Hotel");

    //  Statement st=con.createStatement();
        PreparedStatement st=con.prepareStatement("insert into REG1(NAME,MAIL_ID,COUNTRY,COMPANY) values(?,?,?,?)");

        st.setString(1,NAME);
        st.setString(2,MAIL_ID);
        st.setString(3,COUNTRY);
        st.setString(4,COMPANY);
  st.executeUpdate();  } 
   catch(Exception e)
        {

            System.out.println(e);
        }
             ;// TODO add your handling code here:
    }                                        

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new register1().setVisible(true);
            }
        });

anuj6928 5 Junior Poster in Training · Answer 4 · 2010-09-07T03:04:30+00:00

anuj6928 5 Junior Poster in Training

13 Years Ago

also not working

anuj6928 5 Junior Poster in Training · Answer 5 · 2010-09-07T03:31:11+00:00

C:\Documents and Settings\ASPHire\My Documents\NetBeansProjects\schedular\src\register1.java:147: cannot find symbol
symbol : variable request
location: class register1
String COMPANY= request.getParameter("COMPANY");
i got that in netbeans output console

anuj6928 5 Junior Poster in Training · Answer 6 · 2010-09-07T03:31:26+00:00

C:\Documents and Settings\ASPHire\My Documents\NetBeansProjects\schedular\src\register1.java:147: cannot find symbol
symbol : variable request
location: class register1
String COMPANY= request.getParameter("COMPANY");
i got that in netbeans output console

Akill10 96 Posting Pro · Answer 7 · 2010-09-07T04:03:53+00:00

C:\Documents and Settings\ASPHire\My Documents\NetBeansProjects\schedular\src\register1.java:147: cannot find symbol
symbol : variable request
location: class register1
String COMPANY= request.getParameter("COMPANY");
i got that in netbeans output console

I have never seen this Object class being used before but

//you have
private Object request;
//If it is like creating an instance any other object I would write it as:
private Object request = new Object();

Maybe this is why it cannot find request, because it wasn't initialized?

coil · Answer 8 · 2010-09-07T04:43:00+00:00

It may be because you are trying to assign an object to a String, instead of assigning that String to the object.

Not sure quite what you're asking, but I would assume you're posting stuff that you think will resolve the problem, and is therefore correct...

As to switching the sides, that may sometimes work, but it's not very good practice to just randomly switch sides or add code segments. You should understand why something works or not.

In this specific case, the variable on the left is assigned a value. The OP was getting a value from a method, therefore it follows that the returned value should be assigned to a variable. It wouldn't make sense to assign a method a String.

anuj6928 5 Junior Poster in Training · Answer 9 · 2010-09-07T23:23:55+00:00

acctually i m creating desktop application so i m asking that "request .get parameter" is worked here or not because thats used in JSP programming.

Ezzaral 2,714 Posting Sage Team Colleague Featured Poster · Answer 10 · 2010-09-08T03:02:51+00:00

As akill10 mentioned above, you have not initialized the request variable. You have only declared it.

anuj6928 5 Junior Poster in Training · Answer 11 · 2010-09-10T01:18:15+00:00

anuj6928 5 Junior Poster in Training

13 Years Ago

so how could i initilize...

Ezzaral 2,714 Posting Sage Team Colleague Featured Poster · Answer 12 · 2010-09-10T01:40:12+00:00

You don't actually. 'request' doesn't really apply in your desktop application. You need to get the text from your text fields.

anuj6928 5 Junior Poster in Training · Answer 13 · 2010-09-10T01:44:35+00:00

like it.... 1st text field is name of "T1" so i just have to put...
String MAME= T1.getText();

coil · Answer 14 · 2010-09-10T04:49:04+00:00

coil

13 Years Ago

Yes, that should work.

desktop application

Recommended Answers Collapse Answers

All 19 Replies

Recommended Answers