JDBC operation transaction

package com.hyc.study04;
import com.hyc.study02.utils.JDBCUtils;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class TestTransaction {
    
    public static void main(String[] args) {
    
        Connection connection = null;
        PreparedStatement preparedStatement = null;
        ResultSet resultSet = null;
        try {
    
            connection = JDBCUtils.getConnection();
            
            // Turn off automatic transaction commit , Turn on transactions automatically 
            connection.setAutoCommit(false);
            
            String sqlOut = "UPDATE `account` SET `money`=money-100 WHERE `id`=?";
            preparedStatement = connection.prepareStatement(sqlOut);
            preparedStatement.setInt(1,1);
            preparedStatement.executeUpdate();

            String sqlIn = "UPDATE `account` SET `money`=money+100 WHERE `id`=?";
            preparedStatement = connection.prepareStatement(sqlIn);
            preparedStatement.setInt(1,2);
            preparedStatement.executeUpdate();
            
            // Business operation completed , Commit transaction 
            connection.commit();
        } catch (SQLException throwables) {
    
            try {
    
                connection.rollback();
            } catch (SQLException e) {
    
                e.printStackTrace();
            }
            throwables.printStackTrace();
        }finally {
    
            JDBCUtils.release(connection,preparedStatement,resultSet);
        }
    }
}