swing 确认框和提示框

private void jmiExitActionPerformed(java.awt.event.ActionEvent evt) {
//弹出是否退出的确认框,是：0，否：1，取消：2
int result = JOptionPane.showConfirmDialog(null, "是否退出系统");
if (result == 0) {
this.dispose();
}
}

--三种确认框和提示框

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
//YES_NO_OPTION, YES_NO_CANCEL_OPTION, or OK_CANCEL_OPTION 
JOptionPane.showConfirmDialog(null, "是否要删除记录?", "标题YES_NO_OPTION", 0);
JOptionPane.showConfirmDialog(null, "是否要删除记录?", "标题YES_NO_CANCEL_OPTION", 1);
JOptionPane.showConfirmDialog(null, "确定要删除记录?", "标题OK_CANCEL_OPTION", 2);

//ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
JOptionPane.showMessageDialog(null, "ERROR_MESSAGE", "title", 0);
JOptionPane.showMessageDialog(null, "INFORMATION_MESSAGE", "title", 1);
JOptionPane.showMessageDialog(null, "WARNING_MESSAGE", "title", 2);
JOptionPane.showMessageDialog(null, "QUESTION_MESSAGE", "title", 3);

}