Swing I - Java - page 939

Display 17.17 A Text Field (part 1 of 2)

1 import javax.swing.JFrame;

2 import javax.swing.JTextField;

3 import javax.swing.JPanel;

4 import javax.swing.JLabel;

5 import javax.swing.JButton;

6 import java.awt.GridLayout;

7 import java.awt.BorderLayout;

8 import java.awt.FlowLayout;

9 import java.awt.Color;

10 import java.awt.event.ActionListener;

11 import java.awt.event.ActionEvent;

public class TextFieldDemo extends JFrame

12

implements ActionListener 13

14 {

15 public static final int WIDTH = 400;

16 public static final int HEIGHT = 200;

17 public static final int NUMBER_OF_CHAR = 30;

18 private JTextField name;

19 public static void main(String[] args)

20 {

21 TextFieldDemo gui = new TextFieldDemo();

22 gui.setVisible( true );

23 }

24 public TextFieldDemo()

25 {

26 super ("Text Field Demo");

27 setSize(WIDTH, HEIGHT);

28 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

29 setLayout( new GridLayout(2, 1));

30 JPanel namePanel = new JPanel();

31 namePanel.setLayout( new BorderLayout());

32 namePanel.setBackground(Color.WHITE);

33 name = new JTextField(NUMBER_OF_CHAR);

34 namePanel.add(name, BorderLayout.SOUTH);

35 JLabel nameLabel = new JLabel("Enter your name here:");

36 namePanel.add(nameLabel, BorderLayout.CENTER);

37 add(namePanel);

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