Tutusfunny

double salary = Double.parseDouble(txtSalary.getText());
double tax,nsal;
    if(salary > 50000)
      {
         tax = salary * 10/100;
      }
    else if(salary > 35000)
      {
         tax = salary * 5/100;
      }
   else
      {
          tax = 0.00;
      }

    txtTax.setText(String.valueOf(tax));
    nsal = salary - tax;
    txtNsal.setText(String.valueOf(nsal));

I have attached the video tutorial below it will help you  to do this  step by step.