Add DB Diver.dox:

TeamDB.java:

import java.sql.*;

import java.util.Scanner;

public class TeamDB {

public static void main(String[] args)

{

// Create constants for the driver name and URL.

// NOTE: These values are specific for Cloudscape.

final String DRIVER = "org.apache.derby.jdbc.EmbeddedDriver";

final String DB_URL = "jdbc:derby:TeamDB;create=true";

Connection conn;

try

{

// Load the JDBC driver.

Class.forName(DRIVER).newInstance();

// Create a connection to the database.

conn = DriverManager.getConnection(DB_URL);

char choice;

Scanner keyboard = new Scanner(System.in);

System.out.println("Welcome to the Sports Teams Database Manager!");

do

{

printMenu();

choice = keyboard.nextLine().charAt(0);

switch (choice)

{

case '0':

// Close the connection.

conn.close();

break;

case '1':

viewTeams(conn);

break;

case '2':

viewSchedule(conn);

break;

case '3':

addTeams(conn);

break;

case '4':

addGames(conn);

break;

case '5':

enterScores(conn);

break;

case '6':

beginNewSeason(conn);

break;

}

}while (choice != '0');

}

catch(Exception ex)

{

System.out.println("ERROR: " + ex.getMessage());

}

}

/*****************************************************

// The printMenu method displays the menu choices for*

// the user to work with the database *

//****************************************************/

public static void printMenu()

{

System.out.println();

System.out.println("Select from the following options:");

System.out.println("1. View team standings");

System.out.println("2. View the schedule");

System.out.println("3. Add a team");

System.out.println("4. Add a game to the schedule");

System.out.println("5. Enter game scores");

System.out.println("6. Begin a new season");

System.out.println("0. Exit the program");

}

/*****************************************************

* Utility method to remove the tables and allow the

* user to reset the database for a new season

* @param conn Connection to the database

****************************************************/

public static void beginNewSeason(Connection conn)

{

try

{

Statement stmt = conn.createStatement();

//remove tables if database tables have been created

//this will throw an exception if the tables do not exist

stmt.execute("DROP TABLE Games");

System.out.println("DROP TABLE Games");

}

catch (Exception ex)

{

//call the method to create tables for the database

System.out.println("DROP TABLE Games failed");

}

try

{

Statement stmt = conn.createStatement();

//remove tables if database tables have been created

//this will throw an exception if the tables do not exist

stmt.execute("DROP TABLE Teams");

System.out.println("DROP TABLE Teams");

}

catch (Exception ex)

{

//call the method to create tables for the database

System.out.println("DROP TABLE Teams failed");

}

createTeamDB(conn);

}

/******************************************************

* Utility method to create the tables and initialize

* the database with teams and games.

* @param conn Connection to the database

******************************************************/

public static void createTeamDB(Connection conn)

{

try

{

Statement stmt = conn.createStatement();

//create the table of teams

stmt.execute("CREATE TABLE Teams (" +

"TeamName CHAR(15) NOT NULL PRIMARY KEY, " +

"Wins INT, " + "Losses INT, " +

"Ties INT" + ")");

//add some teams

stmt.executeUpdate("INSERT INTO Teams " +

"(TeamName) " +

"VALUES ('Astros')");

stmt.executeUpdate("INSERT INTO Teams " +

"(TeamName) " +

"VALUES ('Marlins')");

stmt.executeUpdate("INSERT INTO Teams " +

"(TeamName) " +

"VALUES ('Brewers')");

stmt.executeUpdate("INSERT INTO Teams " +

"(TeamName) " +

"VALUES ('Cubs')");

}

catch (Exception ex)

{

System.out.println("ERROR: " + ex.getMessage());

}

try

{

Statement stmt = conn.createStatement();

//create a listing of the games to be played

stmt.execute("CREATE TABLE Games (" +

"GameNumber INT NOT NULL PRIMARY KEY, " +

"HomeTeam CHAR(15) NOT NULL, " +

"HomeTeamScore INT, " +

"VisitorTeam CHAR(15) NOT NULL, " +

"VisitorTeamScore INT" + ")");

stmt.executeUpdate("INSERT INTO Games " +

"(GameNumber, HomeTeam, VisitorTeam) " +

"VALUES (1, 'Astros', 'Brewers')");

stmt.executeUpdate("INSERT INTO Games " +

"(GameNumber, HomeTeam, VisitorTeam) " +

"VALUES (2, 'Brewers', 'Cubs')");

stmt.executeUpdate("INSERT INTO Games " +

"(GameNumber, HomeTeam, VisitorTeam) " +

"VALUES (3, 'Cubs','Astros')");

}

catch (Exception ex)

{

System.out.println("ERROR: " + ex.getMessage());

}

}

/********************************************************

* Allows the user to add more teams to the database

* @param conn

*******************************************************/

public static void addTeams(Connection conn)

{

Scanner keyboard = new Scanner (System.in);

try

{

char ans;

String teamName;

Statement stmt = conn.createStatement();

do

{

//*********************************************

// Task 3

System.out.print("Enter the team name: ");

teamName = keyboard.nextLine();

String sqlStatement = "INSERT INTO Teams " +

"(TeamName) " + "VALUES ('" +

teamName + "')";

stmt.executeUpdate(sqlStatement);

//**********************************************

System.out.print("Do you want to enter another team: ");

ans = keyboard.nextLine().charAt(0);

}while (ans == 'Y'|| ans == 'y');

}

catch (Exception ex)

{

System.out.println("ERROR: " + ex.getMessage());

}

}

/**************************************************************

* Allows the user to add games to the schedule. A unique

* game number is created for each game on the schedule.

* The user will need to supply a home team name and a visitor

* team name from the keyboard.

* @param conn Connection to the database

*************************************************************/

public static void addGames(Connection conn)

{

Scanner keyboard = new Scanner (System.in);

try

{

char ans;

String homeTeam;

String visitingTeam;

int gameNumber = 1;

Statement stmt = conn.createStatement();

//This retrieves the retrieves the data and allows you to count

//the number of games already scheduled so that you add a unique game number

String sqlStatement = "SELECT * from Games";

ResultSet result = stmt.executeQuery(sqlStatement);

while (result.next())

{

gameNumber++;

}

do

{

System.out.print("Enter the home team name: ");

homeTeam = keyboard.nextLine();

System.out.print("Enter the visiting team name: ");

visitingTeam = keyboard.nextLine();

sqlStatement = "INSERT INTO Games " +

"(GameNumber, HomeTeam, VisitorTeam) " + "VALUES (" +

gameNumber + ", '" + homeTeam + "', '" + visitingTeam + "')"; // by Lan

//"(GameNumber, HomeTeam, VisitorTeam) " + "VALUES ('" +

//gameNumber + "', '" + homeTeam + "', '" + visitingTeam + "')"; // by Lan

stmt.executeUpdate(sqlStatement);

System.out.print("Do you want to enter another game: ");

ans = keyboard.nextLine().charAt(0);

}while (ans == 'Y'|| ans == 'y');

}

catch (Exception ex)

{

System.out.println("ERROR: " + ex.getMessage());

}

}

/**********************************************************

* Displays a table listing the team names and season records.

* Since teams have not yet played, all numbers are zero.

* @param conn Connection to the database

**********************************************************/

public static void viewTeams(Connection conn)

{

try

{

// Create a Statement object.

Statement stmt = conn.createStatement();

// Create a string with a SELECT statement.

String sqlStatement = "SELECT * FROM Teams";

// Send the statement to the DBMS.

ResultSet result = stmt.executeQuery(sqlStatement);

System.out.printf("%-15s %10s %10s %10s ",

"Team Name",

"Win", "Lose", "Tie");

// Display the contents of the result set.

// The result set will have 5 columns.

while (result.next())

{

System.out.printf("%-15s %10d %10d %10d ",

result.getString("TeamName"),

result.getInt("Wins"),

result.getInt("Losses"),

result.getInt("Ties"));

}

}

catch(Exception ex)

{

System.out.println("ERROR: " + ex.getMessage());

}

}

/***********************************************************

* Retrieves and displays the teams and scores for all games.

* @param conn Connection to the database

***********************************************************/

public static void viewSchedule(Connection conn)

{

try

{

// Create a Statement object.

Statement stmt = conn.createStatement();

//**********************************

// TASK 2

// Create a string with a SELECT statement.

// Send the statement to the DBMS.

String sqlStatement = "SELECT * FROM Games";

ResultSet result = stmt.executeQuery(sqlStatement);

//*******************************************

//This is a suggested column headings display

System.out.println("List of games and scores:");

System.out.printf("%-6s %-20s %6s %-20s %6s ",

"GameID", "Home", "Score", "Visitor", "Score");

//*********************************************

// Task 2-2c

// Use a while loop to display the contents of the

// result set.The result set will have five columns.

while (result.next())

{

System.out.printf("%-6d %-20s %6d %-20s %6d ",

result.getInt("GameNumber"),

result.getString("HomeTeam"),

result.getInt("HomeTeamScore"),

result.getString("VisitorTeam"),

result.getInt("VisitorTeamScore"));

}

//************************************************

}

catch(Exception ex)

{

System.out.println("ERROR: " + ex.getMessage());

}

}

/************************************************************

* Allows user to enter scores for both teams. The method will

* update the Games table with the scores entered. It will

* also compare the scores to determine the winning and losing

* teams (or tie) and update the appropriate column in the

* Teams table for each team involved in the game.

* @param conn Connection to the database

************************************************************/

public static void enterScores(Connection conn)

{

Scanner keyboard = new Scanner (System.in);

try

{

char ans;

int gameNumber;

String homeTeam;

String visitingTeam;

int score1;

int score2;

String sqlStatement;

ResultSet result;

Statement stmt = conn.createStatement();

do

{

System.out.print("Enter the game ID: ");

gameNumber = keyboard.nextInt();

//************************************************************

// TASK 4-1

// Get the result set from a query that selects all information

// for the gameNumber the user entered.

result = stmt.executeQuery("SELECT * FROM Games WHERE GameNumber = " + gameNumber);

//************************************************************

if(result.next())

{

homeTeam = result.getString("HomeTeam");

visitingTeam = result.getString("VisitorTeam");

System.out.print("Enter the score for the " + homeTeam);

score1 = keyboard.nextInt();

System.out.print("Enter the score for the " + visitingTeam);

score2 = keyboard.nextInt();

keyboard.nextLine();

//**************************************************************

// Task 4-2

// Execute an update to the Games table to store the score for

// each team of that game number

stmt.executeUpdate("UPDATE Games SET HomeTeamScore = " + score1 + " WHERE GameNumber = " + gameNumber);

stmt.executeUpdate("UPDATE Games SET VisitorTeamScore = " + score2 + " WHERE GameNumber = " + gameNumber);

//**************************************************************

if (score1

{

//*********************************************************

// Task 4-3

// Retrieve the number from the appropriate column

// (wins, losses, or ties) for the home team, increment, and

// update that team's record. Do the same for the visiting team.

result = stmt.executeQuery("SELECT Losses FROM Teams " +

" WHERE TeamName = " + "'" + homeTeam + "'");

if(result.next())

{

int losses = result.getInt("Losses");

stmt.executeUpdate("UPDATE Teams " + "SET Losses = " + (losses+1) +

" WHERE TeamName = " + "'" + homeTeam + "'");

}

result = stmt.executeQuery("SELECT Wins FROM Teams " +

" WHERE TeamName = " + "'" + visitingTeam + "'");

if(result.next())

{

int wins = result.getInt("Wins");

stmt.executeUpdate("UPDATE Teams " + "SET Wins = " + (wins+1) +

" WHERE TeamName = " + "'" + visitingTeam + "'");

}

//**************************************************************

}

else if (score2

{

//*********************************************************

// Task 4-3

// Retrieve the number from the appropriate column

// (wins, losses, or ties) for the home team, increment, and

// update that team's record. Do the same for the visiting team.

result = stmt.executeQuery("SELECT Losses FROM Teams " +

" WHERE TeamName = " + "'" + visitingTeam + "'");

if (result.next())

{

int losses = result.getInt("Losses");

stmt.executeUpdate("UPDATE Teams " + "SET Losses = " + (losses+1) +

" WHERE TeamName = " + "'" + visitingTeam + "'");

}

result = stmt.executeQuery("SELECT Wins FROM Teams " +

" WHERE TeamName = " + "'" + homeTeam + "'");

if (result.next())

{

int wins = result.getInt("Wins");

stmt.executeUpdate("UPDATE Teams " + "SET Wins = " + (wins+1) +

" WHERE TeamName = " + "'" + homeTeam + "'");

}

//*******************************************************

}

else

{

//*********************************************************

// Task 4-3

// Retrieve the number from the appropriate column

// (wins, losses, or ties) for the home team, increment, and

// update that team's record. Do the same for the visiting team.

int ties;

result = stmt.executeQuery("SELECT Ties FROM Teams " +

" WHERE TeamName = " + "'" + homeTeam + "'");

if (result.next())

{

ties = result.getInt("Ties");

stmt.executeUpdate("UPDATE Teams " + "SET Ties = " + (ties+1) +

" WHERE TeamName = " + "'" + homeTeam + "'");

}

System.out.println(1);

result = stmt.executeQuery("SELECT Ties FROM Teams " +

" WHERE TeamName = " + "'" + visitingTeam + "'");

System.out.println(2);

if(result.next())

{

ties = result.getInt("Ties");

System.out.println(3);

stmt.executeUpdate("UPDATE Teams " + "SET Ties = " + (ties+1) +

" WHERE TeamName = " + "'" + visitingTeam + "'");

}

//*******************************************************

}

}

System.out.print("Do you want to enter another game: ");

ans = keyboard.nextLine().charAt(0);

}while (ans == 'Y'|| ans == 'y');

}

catch (Exception ex)

{

System.out.println("ERROR: " + ex.getMessage());

}

}

}

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NOTE:

Please answer Task by Task I already wasted one of my question for this assignment I really do not want to do it agian.

THANK YOU,

Lab Objectives B able to write SQL statements. .Be able to retrieve information from a database. .Be able to add information to a database. Be able to change information in multiple tables of the database. Introduction A recreation director needs to keep track of summer T-ball teams, games, and season records. He has hired you to write a computer program to make his life easier. You have created a menu driven program that allows the director to use a database to easily manipulate teams, games, and scores. It also allows the database to be refreshed for a new vear. In this lab, we give fully fimctional source code. Your job is to configure the database connection and test the program. Task #1 Database connection and initialization 1. Copy the file TeamDB.java into NetBeans or other Java IDE tools. 2. Check the database by clicking the "Services" button on the left bar. Check that you have Java DB" there. You can see the current available database is "sample" NetBenns DE 72 Eie Edit Yew avigate Source Reactor gun Debug epofile Team2 lools window elp defaut oonfg ipazt java.uti 1.3cdaner Web Services Create comatanta Eaz the driz nane and URL Output 14117S 3. Add database driver library to project: click the "Projects" button on the left bar. You have only default JDK 1.7 library now