netbeans Lesson 4

Q3. To Calculate  %age using if/else command.

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {                                         

System.exit(0);        // TODO add your handling code here:

    }                                       

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         

txtsn.setText("");

txtfn.setText(" ");

txtrn.setText(" ");

txtc.setText(" ");

txte.setText(" ");

txtm.setText(" ");

txtch.setText(" ");

txtco.setText(" ");

txtt.setText(" ");

txtp.setText(" ");

txtg.setText(" ");

txtph.setText(" ");

    }                                        

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                        

int e = Integer.parseInt(txte.getText());

int m = Integer.parseInt(txtm.getText());

int ch = Integer.parseInt(txtch.getText());

int ph = Integer.parseInt(txtph.getText());

int co = Integer.parseInt(txtco.getText());

double t,p;

t =(e+m+ch+ph+co);

p =(t)/5 ;

txtt.setText(" "+t);

txtp.setText(" "+p);

if(p>=90){

    txtg.setText("A");

}

else

    if(p>=70){

        txtg.setText("B");

        }

    else

        if(p>=55){

            txtg.setText("C");

        }

        else

            if(p>=35){

      

         txtg.setText("D");

            }

            else

                if(p<=35){

                    txtg.setText("F");

                }

    }