AWT Components -- Text Fields & Areas

• To add a text field for display or input one line of text (in this case, 30 characters wide):

  • TextField tf = new TextField("initial text", 30);
  • add(tf);

• The text which is displayed can be changed:

  • tf.setText("now show a new text");

• If the user types input into the text field, it can be obtained:

  • stringvar = tf.getText();

• Or you can disallow the user to type:

  • tf.setEditable(false);

• The TextArea class also has these methods, but it can display multiple lines.

• When the user types in text and presses "return" or "enter", an ActionEvent is generated, so, similarly to Buttons, an ActionListener must be provided. TextAreas generate TextEvents.

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