自动调整大小和滚动的Java JTextArea [英] Java JTextArea that auto-resizes and scrolls

问题描述

我在JPanel中有一个JTextArea.我如何才能让JTextArea填充整个JPanel并重新调整大小，而当JPanel调整大小并在键入太多文本时滚动呢?

I have a JTextArea in a JPanel. How can I have the JTextArea fill the whole JPanel and resize when the JPanel resizes and scroll when too much text is typed in?

推荐答案

JPanel panel = new JPanel();
panel.setLayout(new BorderLayout());  //give your JPanel a BorderLayout

JTextArea text = new JTextArea(); 
JScrollPane scroll = new JScrollPane(text); //place the JTextArea in a scroll pane
panel.add(scroll, BorderLayout.CENTER); //add the JScrollPane to the panel
// CENTER will use up all available space

请参见 http://download.oracle.com /javase/6/docs/api/javax/swing/JScrollPane.html 或 http://download.oracle.com/javase/tutorial/uiswing/components/scrollpane.html 了解有关JScrollPane的更多详细信息

See http://download.oracle.com/javase/6/docs/api/javax/swing/JScrollPane.html or http://download.oracle.com/javase/tutorial/uiswing/components/scrollpane.html for more details on JScrollPane

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