Inserting data into a MySQL database

Question

Hi. I am currently working on a group project and know very little about java to be honest
I'm trying to insert records into a local MySQL database, but I'm having trouble.
When the application is started, a connection is made to the database, which, as far as I can tell is successful. The user adds the data through a method in a console class which then passes the parameters to 'insertCustomer' method in class DatabaseIO.
Connection code from DatabaseIO class
public static void openDatabase(){
//          start by making the connection
          try{
               //System.out.println("setting up class");
               Class.forName("com.mysql.jdbc.Driver");
          catch(Exception e){
               System.out.println("Driver set up error" + e);
          try{
               url="jdbc:mysql://localhost:3306/db0611426";
               con=DriverManager.getConnection(url,"root","");
               System.out.println("setting up database");
               Opened = true;
          catch (Exception e){
               System.out.println("database connection error"+ e);
     }Add customer form
public void addCustomer() {
                    int customerID, depositPercentage;
                    String firstName, lastName, address, phoneNumber, add;
                    boolean purchaser;
                    double budget;
                    System.out.println("\n*** Enter Customer details: ***");
                    customerID = TextInputPrompt.getInteger("Customer ID Number: ");
                    firstName = TextInputPrompt.getString("First Name: ");
                    lastName = TextInputPrompt.getString("Last Name: ");
                    address = TextInputPrompt.getString("Address: ");
                    depositPercentage = TextInputPrompt.getInteger("Deposit Percentage");
                    budget = TextInputPrompt.getDouble("Budget");
                    purchaser = TextInputPrompt.getBoolean("Purchaser?");
                    phoneNumber = TextInputPrompt.getString("Phone Number: ");
                    add = TextInputPrompt.getString("Add Customer Y/N?: ");
                    if (!add.equalsIgnoreCase("y"))
                         return;
                    customers.addCustomers(new Customer(purchaser, customerID, firstName, lastName, address, phoneNumber, depositPercentage, budget));
                    DatabaseIO.insertCustomer(purchaser, customerID, firstName, lastName, address, phoneNumber, depositPercentage, budget);
          }Constructor in customer class
public Customer(boolean purchaser,int customerID,String firstName,String lastName,String address,String phoneNumber,int depositPercentage,double budget) {
          super();
          this.purchaser = purchaser;
          this.customerID = customerID;
          this.firstName = firstName;
          this.lastName = lastName;
          this.address = address;
          this.phoneNumber = phoneNumber;
          this.depositPercentage = depositPercentage;
          this.budget = budget;
     }Code to insert customer into table (DatabaseIO class)
//add a new customer to the customers table
     public static void insertCustomer(boolean purchaser,int customerID,String firstName,String lastName,String address,String phoneNumber,int depositPercentage,double budget){
         String query = "INSERT customer (purchaser,customerID,firstName,lastName,address,phoneNumber,depositPercentage,budget) VALUES ('"+purchaser+"','"+customerID+"','"+firstName+"','"+lastName+"','"+address+"','"+phoneNumber+"','"+depositPercentage+"','"+budget+"')";
         System.out.println("inserting "+ query);
         try{
              Statement stmt = con.createStatement();
              int rs = stmt.executeUpdate(query);
         catch (Exception e){
              System.out.println("insert failed");
    }After entering the data, the 'insert failed' is displayed in the console. Any suggestions on how to solve the problem or any ways of finding out more about the exception would be very much appreciated, thanks in advance!

Answer 1

Here's how to find out more about the exception:
catch (Exception e){
  System.out.println("insert failed");
  e.printStackTrace();
}