Question

我是否知道如何通过GUI Form将选定的单选按钮值和文本字段值保存到文件中？

表单看起来像this

我的代码：

 private void SaveButActionPerformed(java.awt.event.ActionEvent evt) {                                        
    try{
    File f=new File("Customer detail.txt");
    String id = this.CusIDTxt.getText();
    String name=NameTxt.getText();
    String ic=ICNoTxt.getText();
    String ph=PhNoTxt.getText();
    String email=EmailAddTxt.getText();
    PrintWriter writer=new PrintWriter(new BufferedWriter(new FileWriter(f,true)));
    writer.println(id);
    writer.println(name);
    writer.println(ic);
    writer.println(ph);
    writer.println(email);
    writer.close();
    JOptionPane1.showMessageDialog(this, "Register customer was successful");
    m.setVisible(true);
    this.setVisible(false);
    }
    catch(IOException ioe)
    {
        JOptionPane1.showMessageDialog(this,"All fields must be completed in order to register");
    }
}

Answer 1

所以我觉得这个https://examples.javacodegeeks.com/desktop-java/swing/jradiobutton/get-selected-jradiobutton-from-buttongroup/就是你想要的东西

Answer 2

您调用了文件编写器，但您没有调用方法来编写它。例如，您可以尝试writer.write（name）。它会将输入写入文件。您可以查看此API的文档https://docs.oracle.com/javase/7/docs/api/java/io/PrintWriter.html

将选定的单选按钮值和文本字段值保存到文件中

2 个答案: