UAS Codingan 2015

Langsung sajalah ga pake lama codingannya

   private void butmenuActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
        new MenuUtama().show();
        this.dispose();
    }                                     

    private void buthitungActionPerformed(java.awt.event.ActionEvent evt) {                                        
        // TODO add your handling code here:
        int alpha= Integer.parseInt(valpha.getText());
        int lembur = Integer.parseInt(vjmlembur.getText());
      
        if(vkode.getSelectedItem().equals("111")){
            vkode1.setText("111");
            vnama.setText("Magdisc Alfatihah");
        }else if(vkode.getSelectedItem().equals("112")){
            vkode1.setText("112");
            vnama.setText("Taria Utami Putri");
        }else if(vkode.getSelectedItem().equals("113")){
            vkode1.setText("113");
            vnama.setText("Diana Afifah");
        }else if(vkode.getSelectedItem().equals("114")){
            vkode1.setText("114");
            vnama.setText("Randi");
        }else{
            JOptionPane.showMessageDialog(null, "Pilihan tidak ada !");
        }
      
        if(vkotan.getSelectedItem()=="1"){
            vjabatan.setText("Manager");
            vgp.setText("2000000");
            valpha1.setText(""+alpha);
            int pg = alpha*50000;
            vpg.setText(""+pg);
            int gsp = 2000000 - pg;
            vgsp.setText(""+gsp);
            vjl.setText(""+lembur);
            int bl = lembur * 50000;
            vbl.setText(""+bl);
            int total = gsp + bl ;
            vtotal.setText(""+total);
        }else if(vkotan.getSelectedItem()=="2"){
            vjabatan.setText("Assisten Manager");
            vgp.setText("1500000");
            valpha1.setText(""+alpha);
            int pg = alpha*50000;
            vpg.setText(""+pg);
            int gsp = 1500000 - pg;
            vgsp.setText(""+gsp);
            vjl.setText(""+lembur);
            int bl = lembur * 50000;
            vbl.setText(""+bl);
            int total = gsp + bl ;
            vtotal.setText(""+total);
        }else if(vkotan.getSelectedItem()=="3"){
            vjabatan.setText("Staff");
            vgp.setText("1000000");
            valpha1.setText(""+alpha);
            int pg = alpha*50000;
            vpg.setText(""+pg);
            int gsp = 1000000 - pg;
            vgsp.setText(""+gsp);
            vjl.setText(""+lembur);
            int bl = lembur * 50000;
            vbl.setText(""+bl);
            int total = gsp + bl ;
            vtotal.setText(""+total);
        }else if(vkotan.getSelectedItem()=="4"){
            vjabatan.setText("Office Boy");
            vgp.setText("700000");
            valpha1.setText(""+alpha);
            int pg = alpha*50000;
            vpg.setText(""+pg);
            int gsp = 700000 - pg;
            vgsp.setText(""+gsp);
            vjl.setText(""+lembur);
            int bl = lembur * 50000;
            vbl.setText(""+bl);
            int total = gsp + bl ;
            vtotal.setText(""+total);
        }else{
            JOptionPane.showMessageDialog(null, "Kode Jabatan Tidak Ditemukan!!");
        }
    }                                       

    private void butresetActionPerformed(java.awt.event.ActionEvent evt) {                                       
        // TODO add your handling code here:
      
        valpha.setText("");
        vjmlembur.setText("");
        vkode1.setText("");
        vnama.setText("");
        vjabatan.setText("");
        vgp.setText("");
        valpha1.setText("");
        vpg.setText("");
        vgsp.setText("");
        vjl.setText("");
        vbl.setText("");
        vtotal.setText("");
        vkotan.setSelectedIndex(0);
        vkode.setSelectedIndex(0);
    }                                      

    private void formWindowActivated(java.awt.event.WindowEvent evt) {                                   
        // TODO add your handling code here:
        vkode.addItem("- Pilih -");
        vkode.addItem("111");
        vkode.addItem("112");
        vkode.addItem("113");
        vkode.addItem("114");
      
        vkotan.addItem("- Pilih -");
        vkotan.addItem("1");
        vkotan.addItem("2");
        vkotan.addItem("3");
        vkotan.addItem("4");