小编Gau*_*kte的帖子

我正在开发一个将用户事件存储在数据库中的应用程序.为此,我使用SQLite进行存储,但是当我执行查询时,它会抛出错误. 以下是我点击添加按钮时触发操作的代码: -

add.addActionListener(new ActionListener() {
   @Override
   public void actionPerformed(ActionEvent evt) {
     Log.p(dateLabel.getText().toString());
     //if((dateLabel.getText() == null) && (eventArea.getText() == null) && (descriptionArea.getText() == null)){
     if ((dateLabel.getText() == "") || (eventArea.getText() == "") || (descriptionArea.getText() == "")) {
      Dialog.show("Required field", "Please fill all the fields", "OK", "");
     }
     //}
     else {

      Label date1 = new Label("Event Date:- ");
      Label dateLabel1 = new Label(dateLabel.getText());
      Label event1 = new Label("Event:- ");
      Label eventArea1 = new Label(eventArea.getText());
      Label description1 = new Label("Event Description:- "); …