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POvalidate jtextfield in two different class use keylistener
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2011-12-19T05:46:59.430
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2011-12-19T13:26:15.543
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2011-12-19T13:26:15.543
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<p>I created a <code>classA</code> for designing process and <code>classB</code> for creating methods; that method is used to call a <code>classA</code> <code>JTextField</code>. <code>JtextField1</code> is used to update only uppercase <code>String</code>, <code>JTextField2</code> is used to update only numeric values; <code>Jtextfield3</code> is used to update email ID format. I am getting an error when I am calling from another class. I can't to call that <code>ClassB</code> method in <code>ClassA</code> <code>JTextField</code>. </p> <pre><code>import javax.swing.*; import java.awt.*; import java.awt.event.*; class sample { JLabel label1 = new JLabel("name"); JLabel label2 = new JLabel("reg.no"); JTextField text1 = new JTextField(10); JTextField text2 = new JTextField(10); JFrame fr = new JFrame(); public sample() { JPanel jp = new JPanel(new GridLayout(2, 2)); KeyListener textkey = new textListener(); text1.addKeyListener(textkey);//created a keylistener for text1 text2.addKeyListener(textkey);//created a keylistener for text2 jp.add(label1); jp.add(text1); jp.add(label2); jp.add(text2); fr.add(jp); fr.pack(); fr.setSize(430, 350); fr.setTitle("form1"); fr.setVisible(true); } class textListener implements KeyListener {//keyListener is implemented public void keyTyped(KeyEvent e) { } public void keyReleased(KeyEvent e) { } public void keyPressed(KeyEvent e) { JLabel label = new JLabel(); String value = text1.getText(); String value1 = text2.getText(); String keyString; int l = value.length(); if ((e.getKeyCode() >= KeyEvent.VK_A && e.getKeyCode() <= KeyEvent.VK_Z) || (e.getKeyCode() == KeyEvent.VK_BACK_SPACE) || (e.getKeyCode() == KeyEvent.VK_CAPS_LOCK)) { text1.setEditable(true); } else { JOptionPane.showMessageDialog(label, "Enter Alpha", "InputError", JOptionPane.ERROR_MESSAGE); } } } public static void main(String ar[]) { new sample(); } } </code></pre>
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validate jtextfield in two different class use keylistener
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