AVERAGE MARKS , DISTINCSION , GRADE AND TOTAL MARKS     USE THE FOLLOWING SCRIPT IN NETBEANS AND CHANGE TEXTFEILD NAME ACORDINGLY

SCRIPT FOR COMPUTE BUTTON

// Declare & Initialise variable for storing Subject marks

  int english=Integer.parseInt(txtsc.getText());

 int maths=Integer.parseInt(txtmaths.getText());

 int science=Integer.parseInt(txtsc.getText());

int history=Integer.parseInt(txthist.getText());

//Compute and set total marks

int total =english+maths+science+history;

txttot.setText(" "+total);

//Compute and get Average marks

int average=total/4;

txtavg.setText(" "+average);

//Compute and set Resultand Grade

if (average>=75)

{txtr.setText("Distinction");

txtg.setText("A");}

else if (average>=60)

{txtr.setText("First Class");

txtg.setText("B");}

else if (average>=50)

{txtr.setText("Second Class");

txtg.setText("C");}

else if (average>=40)

{txtr.setText("Average");

txtg.setText("D");}

else

{txtr.setText("Fail");

txtg.setText("F");}

SCRIPT FOR EXIT BUTTON

System.exit(0);                                                            // TO EXIT PROGRAM