怎样弹出提示窗口?

String title = "";//输入弹出窗口的标题
int optionType = JOptionPane.DEFAULT_OPTION;//按钮类型，默认是确定，还有YES_NO_OPTION,YES_NO_CANCEL_OPTION,OK_CANCEL_OPTION.
int messageType = JOptionPane.WARNING_MESSAGE;//弹出窗口的图标类型，这里的是感叹号。还有ERROR_MESSAGE,INFORMATION_MESSAGE,QUESTION_MESSAGE,PLAIN_MESSAGE.
JOptionPane.showConfirmDialog(t,"Error for three times!!!",title,optionType,messageType);//t是弹出窗口的基层窗口