OK, I have a problem...
The code works fine in Eclipse, but when I try to compile it into a .jar, I get a bunch of errors.

Code:
[CODE]
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.util.Scanner;
import com.mysql.jdbc.PreparedStatement;


public class Main
{
	private static Scanner scn = new Scanner(System.in);

	public static void main(String[] argv) throws Exception
	{
		Class.forName("com.mysql.jdbc.Driver");

		Main main = new Main();
		int choice = 0;

		System.out.println("\t\tWelcome !\n\n");

		System.out.print(
				           "1. Get Data From the table \"testtable\"\n"+
				           "2. Insert data into the table \"testtable\"\n"+
				           "Your choice?: "
						  );
		choice = scn.nextInt();
		scn.nextLine();

		switch( choice )
		{
		case 1:
			main.getInfo();
			break;

		case 2:
			main.insertInfo();
			break;

		default:
			System.out.print("Was neither 1 or 2. Terminating program...");
		}


	}

	private void getInfo() throws Exception
	{
		//Class.forName("com.mysql.jdbc.Driver");

		Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/testdb", "guest", "shahin33");
		PreparedStatement statement = (PreparedStatement) con.prepareStatement("SELECT * FROM testtable");
		ResultSet result = statement.executeQuery();

		System.out.println();

		System.out.println("USERNAME\tPASSWORD");
		while( result.next() )
		{
			System.out.println(result.getString(1) + "\t\t" + result.getString(2));
		}

		result.close();
		con.close();
	}

	private void insertInfo() throws Exception
	{
		System.out.print("\nUsername: ");
		String username = scn.nextLine();

		System.out.print("Password: ");
		String password = scn.nextLine().toLowerCase();

		Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/testdb", "guest", "shahin33");
		PreparedStatement statement = (PreparedStatement) con.prepareStatement("INSERT INTO testtable VALUES(?,?)");
		statement.setString(1, username);
		statement.setString(2, password);
		statement.executeUpdate();

		System.out.println("\nUser information has been inserted to the database.\nRun the program again and chose 1 to see result.");
		statement.close();
		con.close();

	}
}
[/CODE]

The .bat file I use to compile into a .jar:
[CODE]
@echo off

set /p fileName="Name for the file? Exclude .jar: "

copy *.java "Source Code"
javac *.java

jar -cvfm %fileName%.jar manifest.txt *.class "Source Code"

del *.class /f /q
del "Source Code" /f /q
[/CODE]

My error message:
[CODE]
C:\Users\shahin\Desktop\JavaComp>Compile_N_Whatnot.bat
Name for the file? Exclude .jar: comonXXXXXX
Main.java
        1 fil(er) kopierad(e).
Main.java:5: error: package com.mysql.jdbc does not exist
import com.mysql.jdbc.PreparedStatement;
                     ^
Main.java:51: error: cannot find symbol
                PreparedStatement statement = (PreparedStatement) con.prepa
tement("SELECT * FROM testtable");
                ^
  symbol:   class PreparedStatement
  location: class Main
Main.java:51: error: cannot find symbol
                PreparedStatement statement = (PreparedStatement) con.prepa
tement("SELECT * FROM testtable");
                                               ^
  symbol:   class PreparedStatement
  location: class Main
Main.java:75: error: cannot find symbol
                PreparedStatement statement = (PreparedStatement) con.prepa
tement("INSERT INTO testtable VALUES(?,?)");
                ^
  symbol:   class PreparedStatement
  location: class Main
Main.java:75: error: cannot find symbol
                PreparedStatement statement = (PreparedStatement) con.prepa
tement("INSERT INTO testtable VALUES(?,?)");
[/CODE]