Using a JScrollPane with a JTextArea [duplicate]

问题

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Closed 7 years ago.

Possible Duplicate:
Java Textarea ScrollPane

I have code for a scrollbar to appear in a textarea but it doesnt really work. Any suggestions?

    final JTextArea textArea = new JTextArea();
    textArea.setEditable(false);
    textArea.setBounds(10, 152, 456, 255);
    textArea.setBorder(border);
    textArea.setLineWrap(true);
    sbrText = new JScrollPane(textArea);
    sbrText.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
    panel_1.add(textArea);

回答1:

You need to add the JScrollPane to the panel, not the JTextArea. So instead it should be:

panel_1.add(sbrText);

来源：https://stackoverflow.com/questions/9624305/using-a-jscrollpane-with-a-jtextarea