java - MySQL error store boolean value into tinyint -


class code

this of code class code may help.

private resultset rs; private connection cn; private statement st;      public void insertdata(string data)  {     try     {         st.executeupdate(data);         {         joptionpane.showmessagedialog(null, "data berhasil disimpan");     }     }     catch(exception e)     {         joptionpane.showmessagedialog(null, "gagal insert data");     } }

insertdaftar class

public class insertdaftar implements daftarinterface {     public string nama;     public boolean kuasa;     code cd = new code();      public void setnama(string nama){          this.nama=nama;     }     public void setkuasa(boolean kuasa){          this.kuasa=kuasa;     }     public void akun(){         string data = "insert akun (nama,kuasa)"+"values('"+this.nama+"','"+this.kuasa+"')";         cd.insertdata(data); }

i have created code boolean radio button.

    boolean akun_kuasa;     if (admin.isselected()){             akun_kuasa=true;         }         if (teller.isselected()){             akun_kuasa=false;         }     //todo     insertdaftar id = new insertdaftar()     id.setnama(akun_nama.gettext());     id.setkuasa(akun_kuasa);

there warning message on

id.setkuasa(akun_kuasa);

warning in netbeans.

initialize variable of akun_kuasa

i have tried change type of "akun_kuasa" int, , changed akun_kuasa 0 , 1, there still error.

i have searched problem. there many boolean or tinyint.

note: id object have method store database.

akun_kuasa can undefined after if's

set false first? u know

it compiler warning u

akun_kuasa declared potentially undefined

when u call setter


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