(i) int x=c1.getSelectedIndex();int fee=0;if(x==0)fee=1000;else if(x==1)fee=1500;else if(x==2)fee=2000;else if(x==3)fee=2500;t2.setText(''+fee);(ii) double disc=0;int fee=Integer.parseInt(t2.getText());if(r2.isSelected())disc=fee*10/100;t3.setText(''+disc);(iii) double disc=Double.parseDouble(t3.getText());int fee=Integer.parseInt(t2.getText());double net=fee-disc;t4.setText(''+net);(iv) System.exit(0);(v) c1.addItem('Reading');