How to create mySQL database and how to put the user's input into the database and how to retrieve it?

Hi, experts!

I created a simple code with tons of you experts' help to get input from the user.

Now I would like to learn how to create a MySQL database (table), how to  connect to the dataabase, how to transfer the user's input into the database, and how to retrieve it.

Hope you may kindly show me how to do that as you have always done!

Below is my code:

Thanks a lot!

____________________ The beginning of the code _____________________

import javax.swing.JOptionPane;

public class SumQuiz
{
    static final float MAX = 100f;
   
     public static void main(String[] args)
     {
          SumQuiz duta = new SumQuiz();
          float quiz1 = duta.getScore("Quiz1 score?");
          float quiz2 = duta.getScore("Quiz2 score?");
          String name = duta.getName ("Your Name?");
          String ssn = duta.getSSN ("Your social securiy number?");
         
          duta.showMessage("Your name: " + name + ".\n Your SSN#: " + ssn
                   + ". \nYour total quize score is " + (quiz1 + quiz2));
          duta.issueWarning (quiz1 + quiz2);
      }

     float  getScore(String dialogMessage)
     {
          float input = MAX + 1;
          input = showInput(dialogMessage);
          while (input < 0 || input > MAX)
            {
                  input = showInput("Invalid data. " + dialogMessage);
            }
          return input;
     }
     
     String  getName(String dialogMessage)
     {
          String name;
          name = JOptionPane.showInputDialog (dialogMessage);
          int length = name.length ();
          while (length < 2 || length > 10)
            {
                  name = JOptionPane.showInputDialog("Invalid name. " + dialogMessage);
            length = name.length ();
            }
          return name;
     }
     
     String  getSSN(String dialogMessage)
     {
          String ssn;
          ssn = JOptionPane.showInputDialog (dialogMessage);
          int length = ssn.length ();
          while ( length != 9 )
            {
                  ssn = JOptionPane.showInputDialog("Invalid number. " + dialogMessage);
            length = ssn.length ();
            }
          return ssn;
     }

     float showInput (String mes)
     {
         float input;
         input = Float.parseFloat (JOptionPane.showInputDialog (mes));
         return input;
     }
     
     void showMessage(String message)
     {
          JOptionPane.showMessageDialog(null, message);
     }
 
      void issueWarning (float n)
     {
         float total = n;
         if (total >= 90)
         {  
             showMessage ("You got 'A'.");
         }
         else if (total >= 80)
         {
             showMessage ("You got 'B'.");
         }
         else if (total >= 70)
         {
             showMessage ("You got 'C'.");
         }
         
         else
         {
             showMessage ("You failed.");
         }
      }
}

___________________________ The end of the code ___________________________________