I have to create a Jtextfield where the user will be made to enter about 30 characters.i have created 15 separate Jtextfields and made user to enter only 2 characters in each Jtextfield.when the user enter two characters in first field it automatically jumps to next field and same continues till it reaches 30 characters.
My question is, is there a better way to create Jtextfield.Instead of creating separate 15 Jtextfields can we create one Jtextfield and divide that to 15 partitions and provide the same flow for entering characters. If this is not a good solution, please help me with a better solution. Thanks in advance
My code
cmd1=new JLabel("Command");
cmd1.setBounds(20, 76, 70, 30);
cmd1.setFont(new Font("serif",Font.BOLD,13));
commandpanel.add(cmd1);
cmdtext1=new JTextField();
cmdtext1.setBounds(80, 80,70,25);
commandpanel.add(cmdtext1);
examplelabel=new JLabel("Enter HexaDecimal values (For example : 45,1E) ");
examplelabel.setBounds(260, 50, 250,25);
examplelabel.setFont(new Font("serif",Font.PLAIN,12));
commandpanel.add(examplelabel);
delete1=new JButton("Delete");
delete1.setBounds(606, 80, 70, 25);
commandpanel.add(delete1);
command11=new JTextField(2);
command11.setBounds(155,80,25,25);
command11.setDocument(new JTextFieldLimit(2));
command11.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command11.getText().length() == 2)
{
command12.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command11);
command12=new JTextField();
command12.setBounds(180,80,25,25);
command12.setDocument(new JTextFieldLimit(2));
command12.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command12.getText().length() == 2)
{
command13.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command12);
command13=new JTextField();
command13.setBounds(205,80,25,25);
command13.setDocument(new JTextFieldLimit(2));
command13.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command13.getText().length() == 2)
{
command14.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command13);
command14=new JTextField();
command14.setBounds(230,80,25,25);
command14.setDocument(new JTextFieldLimit(2));
command14.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command14.getText().length() == 2)
{
command15.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command14);
command15=new JTextField();
command15.setBounds(255,80,25,25);
command15.setDocument(new JTextFieldLimit(2));
command15.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command15.getText().length() == 2)
{
command16.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command15);
command16=new JTextField();
command16.setBounds(280,80,25,25);
command16.setDocument(new JTextFieldLimit(2));
command16.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command16.getText().length() == 2)
{
command17.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command16);
command17=new JTextField();
command17.setBounds(305,80,25,25);
command17.setDocument(new JTextFieldLimit(2));
command17.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command17.getText().length() == 2)
{
command18.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command17);
command18=new JTextField();
command18.setBounds(330,80,25,25);
command18.setDocument(new JTextFieldLimit(2));
command18.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command18.getText().length() == 2)
{
command19.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command18);
command19=new JTextField();
command19.setBounds(355,80,25,25);
command19.setDocument(new JTextFieldLimit(2));
command19.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command19.getText().length() == 2)
{
command110.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command19);
command110=new JTextField();
command110.setBounds(380,80,25,25);
command110.setDocument(new JTextFieldLimit(2));
command110.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command110.getText().length() == 2)
{
command111.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command110);
command111=new JTextField();
command111.setBounds(405,80,25,25);
command111.setDocument(new JTextFieldLimit(2));
command111.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command111.getText().length() == 2)
{
command112.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command111);
command112=new JTextField();
command112.setBounds(430,80,25,25);
command112.setDocument(new JTextFieldLimit(2));
command112.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command112.getText().length() == 2)
{
command113.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command112);
command113=new JTextField();
command113.setBounds(455,80,25,25);
command113.setDocument(new JTextFieldLimit(2));
command113.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command113.getText().length() == 2)
{
command114.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command113);
command114=new JTextField();
command114.setBounds(480,80,25,25);
command114.setDocument(new JTextFieldLimit(2));
command114.addKeyListener(new KeyListener()
{
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e)
{
// TODO Auto-generated method stub
if(command114.getText().length() == 2)
{
command115.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
});
commandpanel.add(command114);
command115=new JTextField();
command115.setBounds(505,80,25,25);
command115.setDocument(new JTextFieldLimit(2));
commandpanel.add(command115);
add1=new JButton("Add");
add1.setBounds(547, 80,56,25);
add1.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e)
{
// TODO Auto-generated method stub
add1();
}
});
commandpanel.add(add1);
I think this is what you are looking for. Did not finish it but you get the idea!
import java.util.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class JComponentLayout extends JFrame implements KeyListener{
JLabel cmd1;
JButton add1;
JTextField cmdtext1;
JButton delete1;
JLabel examplelabel;
Vector<Component> fields = new Vector<Component>(15);
JPanel commandpanel = new JPanel(new FlowLayout());
public static void main(String [] args){
new JComponentLayout();
}
public JComponentLayout(){
cmd1=new JLabel("Command");
cmd1.setBounds(20, 76, 70, 30);
cmd1.setFont(new Font("serif",Font.BOLD,13));
commandpanel.add(cmd1);
cmdtext1=new JTextField();
cmdtext1.setBounds(80, 80,70,25);
commandpanel.add(cmdtext1);
examplelabel=new JLabel("Enter HexaDecimal values (For example : 45,1E) ");
examplelabel.setBounds(260, 50, 250,25);
examplelabel.setFont(new Font("serif",Font.PLAIN,12));
commandpanel.add(examplelabel);
for(int e = 0; e < 15; ++e){
JTextField command = new JTextField(2);
command.addKeyListener(this);
commandpanel.add(command);
fields.add(command);
}
delete1=new JButton("Delete");
delete1.setBounds(606, 80, 70, 25);
commandpanel.add(delete1);
add1=new JButton("Add");
add1.setBounds(547, 80,56,25);
add1.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e){
// TODO Auto-generated method stub
}
});
commandpanel.add(add1);
this.add(commandpanel);
this.setVisible(true);
}
@Override
public void keyTyped(KeyEvent e)
{
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e){
JTextField source = (JTextField)e.getSource();
// TODO Auto-generated method stub
if(source.getText().length() == 2){
fields.get((1 + fields.indexOf(source))
% fields.size()).requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e)
{
// TODO Auto-generated method stub
}
}