Databases
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PO
 

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    <p>@MirroredFate (to comments in another answer here) never to use KeyListener, use DocumentListener, then there you can to determine all possible users inputs types inside JTextComponents</p> <p><img src="https://i.stack.imgur.com/Ovgjm.jpg" alt="enter image description here"></p> <pre><code>import java.awt.GridLayout; import javax.swing.*; import javax.swing.event.DocumentEvent; import javax.swing.event.DocumentListener; public class TextLabelMirror { private JPanel mainPanel = new JPanel(); private JTextField field = new JTextField(20); private JTextField field1 = new JTextField(20); public TextLabelMirror() { field.getDocument().addDocumentListener(new DocumentListener() { @Override public void changedUpdate(DocumentEvent e) { updateLabel(e); } @Override public void insertUpdate(DocumentEvent e) { updateLabel(e); } @Override public void removeUpdate(DocumentEvent e) { updateLabel(e); } private void updateLabel(DocumentEvent e) { java.awt.EventQueue.invokeLater(new Runnable() { @Override public void run() { field1.setText(field.getText()); } }); } }); mainPanel.setLayout(new GridLayout(1, 0, 10, 0)); mainPanel.add(field); mainPanel.add(field1); } public JComponent getComponent() { return mainPanel; } private static void createAndShowUI() { JFrame frame = new JFrame("TextLabelMirror"); frame.getContentPane().add(new TextLabelMirror().getComponent()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } public static void main(String[] args) { java.awt.EventQueue.invokeLater(new Runnable() { @Override public void run() { createAndShowUI(); } }); } } </code></pre>
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    1. CO@mKorbel..but this is the mirror label but i want data from database which is the related to the inserted first name?
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    2. CObe sure that this is reason for why your question isn't answered, this question is about logics, not about code
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    3. CO@mKorbel..yes u r right but i want help from you thatswhy i asked you..otherwise its okay
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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