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Fee for different hobbies are as follows:
Hobby Fee
Dancing 1000
Drawing 1500
Music 2000
Singing 2500
Help him in writing the code to do the following:

i. As per the hobby chosen in the hobby combo box, fee should be displayed
in the respective text field named t1 as per the criteria given above after
clicking on “Check Fee” button.
ii. If a candidate belongs to “Jr. Category” then a discount of 10% should be
given in displayed in the text field.
iii. After clicking on the “Net Fee” button, Net Fee should be calculated and
displayed in the respective text field as per the given formula:
Net Fee = Fee – Discount
iv. Write suitable java code to close the application.
v. Write java statement to add a new hobby “Reading” in the combo box at
run time.
OR
Write java statement to make the Net Fee text field named txtNetFee un-editable
at run time.

Ans: 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);

(1.5 Mark for correct code)

ii.
double disc=0;
int fee=Integer.parseInt(t2.getText());
if(r2.isSelected())
disc=fee*10/100;
t3.setText(""+disc);

(1.5 Mark for correct code)

iii.
double disc=Double.parseDouble(t3.getText());
int fee=Integer.parseInt(t2.getText());
double net=fee-disc;
t4.setText(""+net);

(1 Mark for correct code)

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