Object Oriented Programming Through Java by Pearson

10.10 Graphics Using Swing Components

JScrollPane. HORIZONTAL_SCROLLBAR_ALWAYS);

textArea .setEditable(false); // text area is not editable by user

The actionPerformed method handles action events from the text field as follows:

public void actionPerformed(ActionEvent e) {

String text = textField.getText();

textArea.append(text + newline);

textField.selectAll(); // makes ready for the next entry

}

Observe that the getText() method gets the text entered on pressing the enter key.

It does not get the enter key (new line character). Hence, there is a need to attach the

following.

Example 10.6: Program to demonstrate JTextField class

1. package comm.oops.njchap10; ...