JOptionPane是没有选项

Question

我有一个JOptionPane,是的,没有按钮.但是,无论你点击它的哪个按钮仍然存在.救命!下面是代码:

int dialogButton = JOptionPane.YES_NO_OPTION;
            JOptionPane.showConfirmDialog (null, "Are you sure?","WARNING", dialogButton);
            if(dialogButton == JOptionPane.YES_OPTION) {
                System.exit(0);
            if(dialogButton == JOptionPane.NO_OPTION) {
                  remove(dialogButton);
                }
              }

Answer 1

您应该从选项窗格中获取结果:

dialogButton = JOptionPane.showConfirmDialog (null, "Are you sure?","WARNING", dialogButton);

否则,它仍然设置为JOptionPane.YES_NO_OPTION.

清洁工将是:

if (JOptionPane.showConfirmDialog(null, "Are you sure?", "WARNING",
        JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) {
    // yes option
} else {
    // no option
}

虽然,我不确定这条线在发布的代码中应该做什么:remove(dialogButton);.

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