s = "INSERT INTO CardID(CardID,password)VALUES('" +jTextField1.getText() + "'and password='"+jTextField2.getText()+"')";
statement.execute(s);
可是statement.execute(s);这句无法执行,
Errors:variable statement might not have been initialized at line 85 (85:7)

:variable statement might not have been initialized at line 85 (85:7)
变量statement可能还没有被初始化在第85行