package net.samrickard.apps.accounts;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
import net.samrickard.apps.accounts.database.Database;

public class App extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception{
        Parent root = FXMLLoader.load(getClass().getResource("UI.fxml"));
        primaryStage.setTitle("Accounting Manager");
        primaryStage.setMinWidth(1000);
        primaryStage.setMinHeight(600);
        primaryStage.setScene(new Scene(root, 1000, 600));
        primaryStage.setMaximized(true);
        primaryStage.show();

    }


    public static void main(String[] args) {
        Database database;
        database = new Database("ACCOUNTS");
        database.createStatement("INSERT INTO PUBLIC.ACCOUNTS VALUES (DEFAULT, 'SamTest','20102846','Sam',1000000.25)");
        database.disconnectDatabase();
        launch(args);
    }
}

package net.samrickard.apps.accounts.database;

import java.sql.*;

public class Database {

    private String dbname;
    public Connection con;
    private String username;
    private String password;

    public Database(String dbname){
        connectToDatabase(dbname,"SA","");
    }

    /**
     * This is the code to connect to the database. The database must be in the res/database folder
     * @param dbname This is the database name
     * @param username This is the username of the database
     * @param password This is the password of the database
     * @return has the SQL been successful
     */

    public boolean connectToDatabase(String dbname, String username, String password){
        this.username=username;
        this.password=password;
        try{
            Connection con = DriverManager.getConnection("jdbc:hsqldb:file:database/"+dbname, username, password);
            this.con = con;
            this.dbname = dbname;
            System.out.println("Connection to database "+dbname+" was successful.");
            return true;
        }catch(SQLException e){
           System.out.println("Error connecting to database "+dbname+". Error: "+e);
           return false;
        }
    }

    /**
     * This is the function used to disconnect from a database
     * @return has the SQL been successful
     */

    public boolean disconnectDatabase(){
        try{
            con.commit();
            con =     DriverManager.getConnection("jdbc:hsqldb:file:database/"+dbname+";shutdown=true", username, password);
            System.out.println("Disconnection from database "+dbname+" was successful.");
            return true;
        }catch(SQLException e){
            System.out.println("Error disconnecting from database "+dbname+". Error: "+e);
            return false;
        }
    }

    /**
     * This is the code to run a SQL statement to the database
     * @param sqlstatement this is the statement that will be run but cannot be a query as the query needs a result set. Use the query function for running a query to get a result set.
     * @return has the SQL been successful
     */

    public boolean createStatement(String sqlstatement){
        try{
            Statement statement = con.createStatement();
            statement.execute(sqlstatement);
            System.out.println("Successfully created statement: "+sqlstatement);
            return true;
        }catch (SQLException e) {
            System.out.println("Failed to create and execute statement for following reason: n"+e);
            return false;
        }
    }

    /**
     * This is used to run an SQL query. This function is used to obtain results from a statement.
     * @param sqlQuery this is the Query that will be executed
     * @return has the SQL been successful
     */

    public ResultSet createQuery(String sqlQuery){
        ResultSet results;
        try{
            Statement statement = con.createStatement();
            results = statement.executeQuery(sqlQuery);
            System.out.println("Successfully created Query: "+sqlQuery);
            return results;
        }catch (SQLException e) {
            System.out.println("Failed to create and execute query for following reason: n"+e);
            return null;
        }
    }
}

SET DATABASE UNIQUE NAME HSQLDB5E3E63937E
SET DATABASE GC 0
SET DATABASE DEFAULT RESULT MEMORY ROWS 0
SET DATABASE EVENT LOG LEVEL 0
SET DATABASE TRANSACTION CONTROL LOCKS
SET DATABASE DEFAULT ISOLATION LEVEL READ COMMITTED
SET DATABASE TRANSACTION ROLLBACK ON CONFLICT TRUE
SET DATABASE TEXT TABLE DEFAULTS ''
SET DATABASE SQL NAMES FALSE
SET DATABASE SQL REFERENCES FALSE
SET DATABASE SQL SIZE TRUE
SET DATABASE SQL TYPES FALSE
SET DATABASE SQL TDC DELETE TRUE
SET DATABASE SQL TDC UPDATE TRUE
SET DATABASE SQL TRANSLATE TTI TYPES TRUE
SET DATABASE SQL TRANSLATE TTI TYPES TRUE
SET DATABASE SQL CONCAT NULLS TRUE
SET DATABASE SQL UNIQUE NULLS TRUE
SET DATABASE SQL CONVERT TRUNCATE TRUE
SET DATABASE SQL AVG SCALE 0
SET DATABASE SQL DOUBLE NAN TRUE
SET FILES WRITE DELAY 500 MILLIS
SET FILES BACKUP INCREMENT TRUE
SET FILES CACHE SIZE 10000
SET FILES CACHE ROWS 50000
SET FILES SCALE 32
SET FILES LOB SCALE 32
SET FILES DEFRAG 0
SET FILES NIO TRUE
SET FILES NIO SIZE 256
SET FILES LOG TRUE
SET FILES LOG SIZE 50
ALTER CATALOG PUBLIC RENAME TO APPDATABASECATALOG
CREATE USER SA PASSWORD DIGEST 'd41d8cd98f00b204e9800998ecf8427e'
ALTER USER SA SET LOCAL TRUE
CREATE SCHEMA PUBLIC AUTHORIZATION DBA
SET SCHEMA PUBLIC
CREATE MEMORY TABLE PUBLIC.TRANSACTIONS(TRANSACTIONID INTEGER GENERATED BY DEFAULT AS IDENTITY(START WITH 0) NOT NULL PRIMARY KEY,TRANSACTIONDATE DATE NOT NULL,DESCRIPTION VARCHAR(50),ACCOUNTID INTEGER NOT NULL,COSTCENTRE VARCHAR(20) NOT NULL,ISCREDIT BOOLEAN DEFAULT FALSE NOT NULL,TRANSACTIONVALUE DOUBLE DEFAULT 0.00 NOT NULL,TAG VARCHAR(30),LINK INTEGER,CHECKED BOOLEAN DEFAULT FALSE NOT NULL)
ALTER TABLE PUBLIC.TRANSACTIONS ALTER COLUMN TRANSACTIONID RESTART WITH 0
CREATE UNIQUE INDEX TRANSACTIONS_TRANSACTIONID_UINDEX ON PUBLIC.TRANSACTIONS(TRANSACTIONID)
CREATE MEMORY TABLE PUBLIC.ACCOUNTS(ACCOUNTID INTEGER GENERATED BY DEFAULT AS IDENTITY(START WITH 0) NOT NULL PRIMARY KEY,ACCOUNTNAME VARCHAR(15) NOT NULL,ACCOUNTNUMBER VARCHAR(8) NOT NULL,PROVIDER VARCHAR(20),ACCOUNTVALUE DOUBLE DEFAULT 0.00 NOT NULL)
ALTER TABLE PUBLIC.ACCOUNTS ALTER COLUMN ACCOUNTID RESTART WITH 1
CREATE UNIQUE INDEX ACCOUNTS_ACCOUNTID_UINDEX ON PUBLIC.ACCOUNTS(ACCOUNTID)
ALTER TABLE PUBLIC.TRANSACTIONS ADD CONSTRAINT TRANSACTIONS_ACCOUNTS_ACCOUNTID_FK FOREIGN KEY(TRANSACTIONID) REFERENCES PUBLIC.ACCOUNTS(ACCOUNTID)
ALTER SEQUENCE SYSTEM_LOBS.LOB_ID RESTART WITH 1
SET DATABASE DEFAULT INITIAL SCHEMA PUBLIC
GRANT USAGE ON DOMAIN INFORMATION_SCHEMA.SQL_IDENTIFIER TO PUBLIC
GRANT USAGE ON DOMAIN INFORMATION_SCHEMA.YES_OR_NO TO PUBLIC
GRANT USAGE ON DOMAIN INFORMATION_SCHEMA.TIME_STAMP TO PUBLIC
GRANT USAGE ON DOMAIN INFORMATION_SCHEMA.CARDINAL_NUMBER TO PUBLIC
GRANT USAGE ON DOMAIN INFORMATION_SCHEMA.CHARACTER_DATA TO PUBLIC
GRANT DBA TO SA
SET SCHEMA SYSTEM_LOBS
INSERT INTO BLOCKS VALUES(0,2147483647,0)

Connection to database ACCOUNTS was successful.
Failed to create and execute statement for the following reason:
java.sql.SQLSyntaxErrorException: user lacks privilege or object not found: ACCOUNTS
Disconnection from database ACCOUNTS was successful.

java.sql.SQLSyntaxErrorException: user lacks privilege or object not found: ACCOUNTS
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
    at org.hsqldb.jdbc.JDBCStatement.fetchResult(Unknown Source)
    at org.hsqldb.jdbc.JDBCStatement.execute(Unknown Source)
    at net.samrickard.apps.accounts.database.Database.createStatement(Database.java:65)
    at net.samrickard.apps.accounts.App.main(App.java:28)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
    at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: org.hsqldb.HsqlException: user lacks privilege or object not found: ACCOUNTS
    at org.hsqldb.error.Error.error(Unknown Source)
    at org.hsqldb.error.Error.error(Unknown Source)
    at org.hsqldb.ParserDQL.readTableName(Unknown Source)
    at org.hsqldb.ParserDQL.readRangeVariableForDataChange(Unknown Source)
    at org.hsqldb.ParserDML.compileInsertStatement(Unknown Source)
    at org.hsqldb.ParserCommand.compilePart(Unknown Source)
    at org.hsqldb.ParserCommand.compileStatements(Unknown Source)
    at org.hsqldb.Session.executeDirectStatement(Unknown Source)
    at org.hsqldb.Session.execute(Unknown Source)
    ... 15 more