public void loadJawaban(frmGameKuis gemKuis){

 

 kunci = 0;

 if(gemKuis.buttonGroup1.isSelected(gemKuis.rbJawabA.getModel())){

 kunci = 1;

 }else if(gemKuis.buttonGroup1.isSelected(gemKuis.rbJawabB.getModel())){

 kunci = 2;

 }else if(gemKuis.buttonGroup1.isSelected(gemKuis.rbJawabC.getModel())){

 kunci = 3;

 }else{

 kunci = 4;

 } 

 if(GameKuis.class.cast(obj).getKunci(kunci)==true){ //BARIS BAGIAN ERROR SEBELAH SINI

 score+=50; //Jika pertanyaan benar maka score bertambah

 gemKuis.lblScore.setText(String.valueOf(score)+" Point");

 gemKuis.txtScore.setText(String.valueOf(score));

 }else{ //Jika pertanyaan salah maka nyawa berkurang

 nyawa-=1;

 gemKuis.lblNyawa.setText("x"+nyawa);

 }

 if(itr.hasNext()){

 obj = itr.next();

 gemKuis.areaSoal.setText(GameKuis.class.cast(obj).soal);

 gemKuis.rbJawabA.setText(GameKuis.class.cast(obj).jwbA);

 gemKuis.rbJawabB.setText(GameKuis.class.cast(obj).jwbB);

 gemKuis.rbJawabC.setText(GameKuis.class.cast(obj).jwbC);

 gemKuis.rbJawabD.setText(GameKuis.class.cast(obj).jwbD);

 }else{

 gemKuis.areaSoal.setText("---- SELESAI ----\nSelamat, "+gemKuis.lblNama.getText()+"!!\nScore anda : "+gemKuis.lblScore.getText());

 gemKuis.btnJawab.setText("SELESAI");

 }

 gemKuis.buttonGroup1.clearSelection(); 

 }