Make sure that my JTextField has the focus when a JFrame is created : TextField « Swing JFC « Java

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Java » Swing JFC » TextField

Screenshots

Make sure that my JTextField has the focus when a JFrame is created


    



import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;



import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;



class Main extends JFrame {

  JTextField field1 = new JTextField(10);;

  JTextField field2 = new JTextField(10);;

  JPanel panel = new JPanel();

  public Main() {

    panel.add(new JLabel("Field 1:"));

    panel.add(field1);

    panel.add(new JLabel("Field 2:"));

    panel.add(field2);



    getContentPane().add("Center", panel);



    addWindowListener(new WindowAdapter() {

      public void windowOpened(WindowEvent e) {

        field1.requestFocus();

      }

    });



    pack();

    setVisible(true);

  }

  public static void main(String[] argv) {

    new Main();

  }

}

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41.	Make sure that my Text field has the focus when a JFrame is created
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43.	extends JTextField to create integer JTextField
44.	JTextField Max Length

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