import java.sql.*;

public class Test {
	public static void main(String argv[]) {
		try {
			Connection mysql = MySQLConnection.getConnection();
			final String insert = "insert into test(a) value(?)";
			PreparedStatement insertStatement = mysql.prepareStatement(insert);
			insertStatement.setInt(1, 3);
			insertStatement.executeUpdate();
		} catch (Exception e) {
			e.printStackTrace();
		} 
	}
}