JOptionPane的YES NO OPTION [英] JOptionPane YES NO OPTION

问题描述

我得到了一个JOptionPane的和是和否按钮。但是，任何按钮，单击它仍然存在。帮帮我！继承人的code：

  INT dialogBu​​tton = JOptionPane.YES_NO_OPTION;
            JOptionPane.showConfirmDialog（NULL，你确定吗？，警告，dialogBu​​tton）;
            如果（dialogBu​​tton == JOptionPane.YES_OPTION）{
                System.exit（0）;
            如果（dialogBu​​tton == JOptionPane.NO_OPTION）{
                  删除（dialogBu​​tton）;
                }
              }
 

解决方案

您应该真正从选项窗格拍摄效果：

  dialogBu​​tton = JOptionPane.showConfirmDialog（NULL，你确定吗？，警告，dialogBu​​tton）;
 

否则，它仍然设置为 JOptionPane.YES_NO_OPTION 。

清洁将是：

 如果（JOptionPane.showConfirmDialog（NULL，你确定吗？，警告，
        JOptionPane.YES_NO_OPTION）== JOptionPane.YES_OPTION）{
    // yes选项
}其他{
    //别无选择
}
 

虽然，我不知道这是什么线，预计在发布code ++做的：删除（dialogBu​​tton）;

有关更多细节和例子看看是怎样炼成的对话框教程。

I got an JOptionPane and yes and no buttons. But, whichever button you click it still exists. HELP! Heres the code:

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);
                }
              }

解决方案

You should actually take the result from the option pane:

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

Otherwise, it remains set to JOptionPane.YES_NO_OPTION.

Cleaner would be:

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

Although, I'm not sure what this line is expected to do in the posted code: remove(dialogButton);.

For more details and examples check out How to Make Dialogs tutorial.

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