Passing Grade Database

SOURCE CODE BUTTON PROSES

    private void ProsesActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
        int nilaiBenar=Integer.parseInt(nilaiBenarField.getText());
        int nilaiSalah=Integer.parseInt(nilaiSalahField.getText());
        int nilaiKosong=Integer.parseInt(nilaiKosongField.getText());
        int JumlahSoal=nilaiBenar+nilaiSalah+nilaiKosong;
       
        int PassingGrade=((nilaiBenar*4)-(nilaiSalah*1))*100;
        int FinalPassing=(PassingGrade)/(JumlahSoal*4);
        passingGradeField.setText(""+FinalPassing);
    }