82 lines
2.5 KiB
Java
82 lines
2.5 KiB
Java
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Using JTextField and JPasswordField
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import java.awt.*;
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import java.awt.event.*;
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import javax.swing.*;
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public class TextFieldTest extends JFrame
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{
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private JTextField text1, text2, text3;
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private JPasswordField password;
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public TextFieldTest()
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{
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super( "Testing JTextField and JPasswordField" );
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Container c = getContentPane();
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c.setLayout( new FlowLayout() );
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// construct textfield with default sizing
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text1 = new JTextField( 10 );
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c.add( text1 );
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// construct textfield with default text
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text2 = new JTextField( "Enter text here" );
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c.add( text2 );
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// construct textfield with default text and
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// 20 visible elements and no event handler
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text3 = new JTextField( "Uneditable text field", 20 );
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text3.setEditable( false );
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c.add( text3 );
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// construct textfield with default text
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password = new JPasswordField( "Hidden text" );
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c.add( password );
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TextFieldHandler handler = new TextFieldHandler();
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text1.addActionListener( handler );
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text2.addActionListener( handler );
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text3.addActionListener( handler );
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password.addActionListener( handler );
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setSize( 325, 100 );
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show();
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}
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public static void main( String args[] )
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{
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TextFieldTest app = new TextFieldTest();
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app.addWindowListener( new WindowAdapter()
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{
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public void windowClosing( WindowEvent e )
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{
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System.exit( 0 );
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}
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} );
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}
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private class TextFieldHandler implements ActionListener
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{
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public void actionPerformed( ActionEvent e )
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{
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String s = "";
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if ( e.getSource() == text1 )
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s = "text1: " + e.getActionCommand();
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else if ( e.getSource() == text2 )
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s = "text2: " + e.getActionCommand();
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else if ( e.getSource() == text3 )
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s = "text3: " + e.getActionCommand();
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else if ( e.getSource() == password )
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{
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JPasswordField pwd = (JPasswordField) e.getSource();
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s = "password: " + new String( pwd.getPassword() );
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}
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JOptionPane.showMessageDialog( null, s );
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}
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}
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}
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