For the given code, if con is a valid Connection object, and the table Customer is empty, what will be output of this code?

try {
con = DriverManager.getConnection(url,uid,pwd);
Statement stmnt = con.createStatement();
rs = stmnt.executeQuery("select * from customer");
if (rs.next())
rs.getString(2);
} catch (SQLException e) {
e.printStackTrace();
}

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