hi all
I'm dean. newbie bout Java, i mean i got too basic knowledge about it.
I want to learn it because i wan to create a Morse code converter which it will automatically convert alphanumerical words to Morse code. i had read something about java swing.
the question is what should i do next. i had try code some coding to simple java GUI.
so can anyone help me to tell me what i shall do next to make my project succes.
p/s:im sorry,im too noobie.
thanks a lots,Mr. Ezzaral,
i had read that. and i learn something from that.
i also had download open source NetBeans IDE.
thanks for your concern.
i'll ask if got anything else.
thanks again.:)
You can start off by learning that JavaScript is not Java. Java is an in-depth software language. JavaScript is a webdevelopment language that runs on the client.
http://java.sun.com/docs/books/tutorial/uiswing/learn/index.html
gives an example of how to make a GUI with netbeans
if you do want to learn java i suggest starting with The Sun Tutorial it has all the information you will need to get started with most things java. if that doesn't help this thread has a lot of other information on what to read for more development stuff
hmm..
i had try to write something.
actually i had learn it before,but i failed to master it.
i'll try my best.
anyway here got one problem when i try compile this code.
can anyone help me.
thanks.:$
/*
* MorseConverter.java
*
* Created on August 3, 2008, 11:15 AM
*/
package my.morsecode;
/**
*
* @author dean
*/
public class MorseConverter extends javax.swing.JFrame {
/** Creates new form MorseConverter */
public MorseConverter() {
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() {
jInternalFrame1 = new javax.swing.JInternalFrame();
jPanel1 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jPanel2 = new javax.swing.JPanel();
jLabel2 = new javax.swing.JLabel();
jTextField2 = new javax.swing.JTextField();
jButton4 = new javax.swing.JButton();
jButton5 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jButton6 = new javax.swing.JButton();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenuItem1 = new javax.swing.JMenuItem();
jMenuItem2 = new javax.swing.JMenuItem();
jMenu2 = new javax.swing.JMenu();
jMenuItem3 = new javax.swing.JMenuItem();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jInternalFrame1.setVisible(true);
jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Alphanumerical", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Tahoma", 1, 12)));
jLabel1.setText("Write Your Massage Here:");
jButton1.setText("OK");
jButton2.setText("Reset");
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jButton1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton2))
.addComponent(jLabel1))
.addContainerGap(287, Short.MAX_VALUE))
.addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 415, Short.MAX_VALUE)
);
jPanel1Layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {jButton1, jButton2});
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 65, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton1)
.addComponent(jButton2)))
);
jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Morse Code", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Tahoma", 1, 12)));
jLabel2.setText("Your Converted Masage:");
jButton4.setText("OK");
jButton5.setText("Reset");
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jButton4)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton5))
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 415, javax.swing.GroupLayout.PREFERRED_SIZE)
);
jPanel2Layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {jButton4, jButton5});
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 67, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton4)
.addComponent(jButton5))
.addContainerGap())
);
jButton3.setText("Convert");
jButton6.setText("Transmit");
jMenu1.setText("File");
jMenuItem1.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_HOME, java.awt.event.InputEvent.CTRL_MASK));
jMenuItem1.setText("New");
jMenu1.add(jMenuItem1);
jMenuItem2.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_END, java.awt.event.InputEvent.CTRL_MASK));
jMenuItem2.setText("Exit");
jMenu1.add(jMenuItem2);
jMenuBar1.add(jMenu1);
jMenu2.setText("Help");
jMenuItem3.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_BACK_SPACE, java.awt.event.InputEvent.CTRL_MASK));
jMenuItem3.setText("About");
jMenu2.add(jMenuItem3);
jMenuBar1.add(jMenu2);
jInternalFrame1.setJMenuBar(jMenuBar1);
javax.swing.GroupLayout jInternalFrame1Layout = new javax.swing.GroupLayout(jInternalFrame1.getContentPane());
jInternalFrame1.getContentPane().setLayout(jInternalFrame1Layout);
jInternalFrame1Layout.setHorizontalGroup(
jInternalFrame1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jInternalFrame1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jInternalFrame1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jPanel1, javax.swing.GroupLayout.Alignment.LEADING, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(jInternalFrame1Layout.createSequentialGroup()
.addGap(358, 358, 358)
.addComponent(jButton6, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addComponent(jPanel2, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, jInternalFrame1Layout.createSequentialGroup()
.addGap(360, 360, 360)
.addComponent(jButton3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
.addGap(3, 3, 3))
);
jInternalFrame1Layout.setVerticalGroup(
jInternalFrame1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jInternalFrame1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 142, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, 146, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton6))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jInternalFrame1)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jInternalFrame1)
);
pack();
}// </editor-fold>
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new MorseConverter().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JButton jButton5;
private javax.swing.JButton jButton6;
private javax.swing.JInternalFrame jInternalFrame1;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JMenuItem jMenuItem2;
private javax.swing.JMenuItem jMenuItem3;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
// End of variables declaration
}errr.... guys..
forgot to mention
I'm using NetBens IDE..
i try to run it.
then its show..
Does Not Have A Main Class Set.
erm i want to ask anyone if got any link that i can read again bout this thing.
thanks for your concern.
:$
when you first tried to run the project didn't you get the popup that asks about what class you want to run main from?
yerp..something pop up
asking
Select Main Class
but..
its show
<No Main Classes Found>
anything mistake from the beginning of my coding?
or when i start to built New Project??
ps: actually i tried to built a Morse Code Converter. but before i put its database i try to generate the UI first. u got any idea where should i start my project??
thanks you so much.
well, i don't know any morse code but s.o.s. but i have an idea, but first maybe you should try to make a new project and see if that solves you problem.
this is something i would try for morse code:
String letters="abcdefghijklmnopqrstuvwqyz";
String[] codes = {"code for a","code for b", etc};and then in order to convert to codes loop through an input string each char you indexOf(thechar) in letters, and use that index in codes to get the code. going the other way is a little more difficult though, and i won't go into it now.
A HashMap would also serve well for that, with each letter for a key and the code for the value. A for-each on the map entries with String.replaceAll() against the string would process the entire text.
that is also true
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