5.9 LAB - Database programming with Java (SQLite) Complete the Java program to create a Horse table, insert one row, and display the row. The main program calls four methods: createConnection() creates a connection to the database. createTable() creates the Horse table. insertHorse() inserts one row into Horse. selectAllHorses() outputs all Horse rows. Complete all four methods. Method parameters are described in the template. Do not modify the main program. The Horse table should have five columns, with the following names, data types, constraints, and values: Name Data type Constraints Value Id integer primary key, not null 1 Name text 'Babe' Breed text 'Quarter horse' Height double 15.3 BirthDate text '2015-02-10' The program output should be: All horses: (1, 'Babe', 'Quarter Horse', 15.3, '2015-02-10') This lab uses the SQLite database rather than MySQL. Both SQLite and MySQL Connector/J implement the JDBC API. Consequently, the API is as described in the text, with a few exceptions: Use the connection string "jdbc:sqlite::in-memory" to connect to an in-memory database. Use the text data type instead of char and varchar. SQLite reference information can be found at SQLite Java Tutorial, but is not necessary to complete this lab. here is my code: import java.sql.*; public class LabProgram { // Create a connection to a sqlite in-memory database // Returns Connection object public static Connection createConnection() { // YOUR CODE HERE // Use connection string "jdbc:sqlite::memory:" Connection connection = null; try { connection = DriverManager.getConnection("jdbc:sqlite::memory:"); } catch (SQLExcepton ex) { System.out.println(ex.getMessage()); } return connection; } // Create Horse table // Parameter conn is database connection created in createConnection() public static void createTable(Connection conn) { // YOUR CODE HERE String sql = "CREATE TABLE HORSE (" + " ID INTEGER PRIMARY KEY," + " NAME TEXT," + " BREED TEXT," + " HEIGHT REAL," + " BIRTHDATE TEXT" + ")"; try { Statement statement = conn.createStatement(); statement.execute(sql); } catch (SQLExeption ex) { System.out.println(ex.getMessege()); } } // Insert row into Horse table using a parameterized query // Parameter conn is database connection created in createConnection() // Parameters id, name, breed, height, and birthDate contain values to be inserted public static void insertHorse(Connection conn, int id, String name, String breed, double height, String birthDate) { // YOUR CODE HERE String sql = "INSWET INTO HORSE VALUES (,?,?,?,?,?)"; try { PreparedStatement pSql = conn.prepareStatement(sql); pSql.setInt(1, id); pSql.setString(2, name); pSql.setString(3, breed); pSql.setDouble(4, height); pSql.setString(5, birthDate); pSql.execute(); } catch (SQLExeption ex) { System.out.pringln(ex.getMessage()); } } // Select and print all rows of Horse table // Parameter conn is database connection created in createConnection() public static void selectAllHorses(Connection conn) { // YOUR CODE HERE String sql = "SELECT * FROM HORSE"; try { Statement statement = conn.createStatement(); ResultSet resultSet = statement.executeQuery(sql); System.out.printf("%-5s%-15s%-15s%-10s%-10s\n", "ID", "NAME", "BREED", "HEIGHT", "BIRTH DATE"); System.out.printf("=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=\n"); while (resultSet.next()) { int id = resultsSet.getInt("ID"); String name = resultSet.getString("NAME"); String breed = resultSet.getString("BREED"); double height = resultSet.getDouble("HEIGHT"); string birthDate = resultSet.getString("BIRTHDATE"); System.out.printf("%-5s%-15s%-15s%-10s%-10s\n", id, name, breed, height, birthDate); } System.out.printf("=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=\n"); } catch (SQLException ex) { System.out.pringln(ex.getMessage()); } } // DO NOT MODIFY main public static void main(String[] args) { // Create connection to sqlite in-memory database Connection conn = createConnection(); // Create Horse table createTable(conn); // Insert row into Horse table insertHorse(conn, 1, "Babe", "Quarter Horse", 15.3, "2015-02-10"); // Select and print all Horse table rows selectAllHorses(conn); } }
OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
5.9 LAB - Database programming with Java (SQLite)
Complete the Java program to create a Horse table, insert one row, and display the row. The main program calls four methods:
- createConnection() creates a connection to the database.
- createTable() creates the Horse table.
- insertHorse() inserts one row into Horse.
- selectAllHorses() outputs all Horse rows.
Complete all four methods. Method parameters are described in the template. Do not modify the main program.
The Horse table should have five columns, with the following names, data types, constraints, and values:
| Name | Data type | Constraints | Value |
|---|---|---|---|
| Id | integer | primary key, not null | 1 |
| Name | text | 'Babe' | |
| Breed | text | 'Quarter horse' | |
| Height | double | 15.3 | |
| BirthDate | text | '2015-02-10' |
The program output should be:
All horses: (1, 'Babe', 'Quarter Horse', 15.3, '2015-02-10')This lab uses the SQLite database rather than MySQL. Both SQLite and MySQL Connector/J implement the JDBC API. Consequently, the API is as described in the text, with a few exceptions:
- Use the connection string "jdbc:sqlite::in-memory" to connect to an in-memory database.
- Use the text data type instead of char and varchar.
SQLite reference information can be found at SQLite Java Tutorial, but is not necessary to complete this lab.
here is my code:
import java.sql.*;
public class LabProgram {
// Create a connection to a sqlite in-memory database
// Returns Connection object
public static Connection createConnection() {
// YOUR CODE HERE
// Use connection string "jdbc:sqlite::memory:"
Connection connection = null;
try {
connection = DriverManager.getConnection("jdbc:sqlite::memory:");
} catch (SQLExcepton ex) {
System.out.println(ex.getMessage());
}
return connection;
}
// Create Horse table
// Parameter conn is database connection created in createConnection()
public static void createTable(Connection conn) {
// YOUR CODE HERE
String sql = "CREATE TABLE HORSE ("
+ " ID INTEGER PRIMARY KEY,"
+ " NAME TEXT,"
+ " BREED TEXT,"
+ " HEIGHT REAL,"
+ " BIRTHDATE TEXT"
+ ")";
try {
Statement statement = conn.createStatement();
statement.execute(sql);
} catch (SQLExeption ex) {
System.out.println(ex.getMessege());
}
}
// Insert row into Horse table using a parameterized query
// Parameter conn is database connection created in createConnection()
// Parameters id, name, breed, height, and birthDate contain values to be inserted
public static void insertHorse(Connection conn, int id, String name, String breed, double height, String birthDate) {
// YOUR CODE HERE
String sql = "INSWET INTO HORSE VALUES (,?,?,?,?,?)";
try {
PreparedStatement pSql = conn.prepareStatement(sql);
pSql.setInt(1, id);
pSql.setString(2, name);
pSql.setString(3, breed);
pSql.setDouble(4, height);
pSql.setString(5, birthDate);
pSql.execute();
} catch (SQLExeption ex) {
System.out.pringln(ex.getMessage());
}
}
// Select and print all rows of Horse table
// Parameter conn is database connection created in createConnection()
public static void selectAllHorses(Connection conn) {
// YOUR CODE HERE
String sql = "SELECT * FROM HORSE";
try {
Statement statement = conn.createStatement();
ResultSet resultSet = statement.executeQuery(sql);
System.out.printf("%-5s%-15s%-15s%-10s%-10s\n", "ID", "NAME", "BREED", "HEIGHT", "BIRTH DATE");
System.out.printf("=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=\n");
while (resultSet.next()) {
int id = resultsSet.getInt("ID");
String name = resultSet.getString("NAME");
String breed = resultSet.getString("BREED");
double height = resultSet.getDouble("HEIGHT");
string birthDate = resultSet.getString("BIRTHDATE");
System.out.printf("%-5s%-15s%-15s%-10s%-10s\n",
id, name, breed, height, birthDate);
}
System.out.printf("=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=\n");
} catch (SQLException ex) {
System.out.pringln(ex.getMessage());
}
}
// DO NOT MODIFY main
public static void main(String[] args) {
// Create connection to sqlite in-memory database
Connection conn = createConnection();
// Create Horse table
createTable(conn);
// Insert row into Horse table
insertHorse(conn, 1, "Babe", "Quarter Horse", 15.3, "2015-02-10");
// Select and print all Horse table rows
selectAllHorses(conn);
}
}
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