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我正在嘗試使用JPanel
和JOptionPanel
,以便我可以修改警報窗口的大小。我寫的代碼,因爲這:使用JPanel的JOptionPane
JPanel panel = new JPanel();
//panel.setBackground(Color.RED);
panel.setPreferredSize(new Dimension(500,500));
// display the jpanel in a joptionpane dialog, using showMessageDialog
JFrame frame = new JFrame("JOptionPane showMessageDialog component example");
while (AlarmRS.next()) {
System.out.println(AlarmRS.getString("Description"));
//JOptionPane.showInternalMessageDialog(null, getPanel(), AlarmRS.getString("Description"), JOptionPane.INFORMATION_MESSAGE);
JOptionPane.showMessageDialog(frame,panel, AlarmRS.getString("Description"), JOptionPane.WARNING_MESSAGE);
}
然而,當我運行該程序,描述意味着在中間,而是,它進入標題欄。我怎樣才能使這項工作,使描述是警報窗口的主要文字?
請添加一個'JLabel'到'JPanel' ..... –
的['爲的JavaDoc showMessageDialog'(http://docs.oracle.com/javase/7 /docs/api/javax/swing/JOptionPane.html#showMessageDialog(java.awt.Compone nt,%20java.lang.Object,%20java.lang.String,%20int))明確指出第三個參數是對話框的標題字符串(*)是對話框的標題字符串* – MadProgrammer