Waria Ahmed

Hi,

I am currently working in IT support and studying java in my spair time.

I was looking to start hunting for java jobs around March but even the junior roles require experience. Hence I was pondering whether to do a unpaid work experience / internship for 6 months in java.

Does anyone have any advice on the best way to find these type of jobs?

Thanks in advance.

I would recommend you to start practically programming for a while to build your experience. Then get into the SCWCD, then SCBCD.

What do i need to download? where do I type in commands etc?

Thanks

Are there any good tutorials out there for a complete newbie like myself?

I'm looking to get into a job regarding SQL and need some knowledge.

Thanks in advance.

This is the error I get when i type something and press "search"

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at uni.NewJFrame.searchButtonActionPerformed(NewJFrame.java:104)
at uni.NewJFrame.access$100(NewJFrame.java:16)
at uni.NewJFrame$2.actionPerformed(NewJFrame.java:53)

OHHHH Ok.... I get you.

How do I store the input from user as firstText?

This is the full program if it helps...

/* * NewJFrame.java * * Created on 17 September 2008, 12:57 */ package uni; /** * * @author irfann */ public class NewJFrame extends javax.swing.JFrame { /** Creates new form NewJFrame */ public NewJFrame() { 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. */ @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents private void initComponents() { jLabel1 = new javax.swing.JLabel(); lastLabel = new javax.swing.JLabel(); firstText = new javax.swing.JTextField(); lastText = new javax.swing.JTextField(); searchButton = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jLabel1.setText("First Name"); lastLabel.setText("Last Name"); firstText.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { firstTextActionPerformed(evt); } }); searchButton.setText("Search"); searchButton.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { searchButtonActionPerformed(evt); } }); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGap(121, 121, 121) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 80, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(lastLabel)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(lastText) .addComponent(firstText, javax.swing.GroupLayout.DEFAULT_SIZE, 105, Short.MAX_VALUE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 15, Short.MAX_VALUE) .addComponent(searchButton) .addContainerGap()) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGap(30, 30, 30) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 21, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(firstText, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(searchButton)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(lastLabel) .addComponent(lastText, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addContainerGap(221, Short.MAX_VALUE)) ); pack(); }// </editor-fold>//GEN-END:initComponents private void firstTextActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_firstTextActionPerformed // TODO add your handling code here: }//GEN-LAST:event_firstTextActionPerformed public void addPerson(Person p){ for (int i=0; i<array.length; i++){ array[i] =p; } } private void searchButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_searchButtonActionPerformed for(int i=0; i<array.length; i++){ if(firstText.equals(array[i].getFirstName())) this.lastText.setText (array[i].getLastName()); } // TODO add your handling code here: }//GEN-LAST:event_searchButtonActionPerformed /* public void searchPerson(String str){ for(int i=0; i<array.length; i++){ if (str.equals(array[i])){ } } }*/ /** * @param args the command line arguments */ public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new NewJFrame().setVisible(true); NewJFrame TEST = new NewJFrame(); Person student1 = new Person("Irfan", "Nabi"); TEST.addPerson(student1); Person student2 = new Person("Monsur", "Zaman"); TEST.addPerson(student2); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JTextField firstText; private javax.swing.JLabel jLabel1; private javax.swing.JLabel lastLabel; private javax.swing.JTextField lastText; private javax.swing.JButton searchButton; // End of variables declaration//GEN-END:variables Person array[] = new Person[2]; }

And Person class...

/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package uni; /** * * @author irfann */ public class Person { private String firstName; private String secondName; public Person(){} public Person(String first, String last){ this.firstName = first; this.secondName = last; } public String getFirstName(){ return firstName; } public String getLastName(){ return secondName; } }

Im assuming the firstText is a String, and getFirstName returns a String?

i get the NullPointerException when i run the program.

Yes i missed a . there but it still doesnt work.

Basically "firstText" is the variable name for the textfield, which the user types into. And whenever the user presses the search button, I want the program to take what the user typed into "firstText" and search through the array looking to see if it matches any people in array.

If it matches, I want the second name of the person to be displayed in "lastText" textfield.

I know my explanation isnt the best, so please feel free to ask further questions.

Thanks

Just creating a test GUI program, I have got a text field for first name and a text field for last name. In my JFrame class I am trying to take the input from firstNameTextField and in return print out the last name into the lastNameTextField. This is my code for the actionPerformed�

private void searchButtonActionPerformed(java.awt.event.ActionEvent evt) { for(int i=0; i<array.length; i++){ if(firstTextequals(array[i].getFirstName())) this.lastText.setText (array[i].getLastName()); }

Basically if the text in the firstText ( variable name for my textfield) matches the first name of the person in the array. Then I want to print the second name in the text field. However I am having problems getting the text from first text field.

Can anyone shed any light on this matter please? Am I doing anything wrong?

Thanks

As the title says, i would like a recommendation for a book or tutorial for java frameworks.. hibernante, strut etc.

Thanks in advance

Cheers mate, i was on other forums and was recommended Ubuntu as well.

I will download and install the OS and start playing around with it to learn.

Thanks again.

Hi everyone,

I am a complete newbie to linux and now barely anything about it. Could someone kindly guide me towards the best distro to use if I am keen to become a programmer. ( I have been told lnix knowledge is essential for a programmer)

Thanks

Thanks,
that was very helpful.

I'm not a expert in this feild, and am just a beginner myself.

But as far as I'm concerned you could potentially earn 4 times your current wage in UK, so I think if you have the opportunity you should definitely go for it.