QUESTION 1

DEVELOP A SIMPLE TELEPHONE DIRECTORY WHICH SAVES YOUR FRIENDS CONTACT INFORMATION IN A FILE NAMED DIRECTORY.TXT. THE PROGRAM SHOULD HAVE A MENU SIMILAR TO THE FOLLOWING:
----------------MENU-------------------------
1. ADD NEW FRIEND.
2. DISPLAY CONTACT INFO.
3. EXIT
ENTER MENU NUMBER:
WHEN YOU PRESS “1” IT SHOULD REQUEST YOU TO ENTER FOLLOWING DATA:
---------NEW FRIEND INFO--------
NAME : SAMAN
PHONE-NO: 011-2123456
E-MAIL : SAMAN@CSE.MRT.AC.LK
AFTER ADDING NEW CONTACT INFORMATION IT SHOULD AGAIN DISPLAY THE MENU. WHEN YOU PRESS “2” IT SHOULD DISPLAY ALL THE CONTACT INFORMATION STORED IN THE DIRECTORY.TXT FILE AS FOLLOWS:
--------------CONTACT INFO---------------
NAME TEL-NO E-MAIL
KAMALA 077-7123123 KAMALA@YAHOO.COM
KALANI 033-4100101 KALANI@GMAIL.COM


QUESTION 2

WRITE A C PROGRAM TO DISPLAY A SINE TABLE. THE PROGRAM SHOULD DISPLAY ALL THE SINE VALUES FROM 0 TO 360 DEGREES (AT 5 DEGREES INCREMENTS) AND IT SHOULD DISPLAY ONLY 20 ROWS AT A TIME.


QUESTION 3

GIVEN A STRING S OF LENGTH N FROM A TEXT FILE, COUNT THE TOTAL NUMBER OF WORDS T, IN S. USE FILE-HANDLING MECHANISM OF C LANGUAGE TO ACCESS THE FILES.


QUESTION 4

WRITE A PROGRAM TO READ IN TWO MATRICES A AND B OF DIMENSIONS 34 AND 43 RESPECTIVELY, AND COMPUTE AND DISPLAY THEIR PRODUCT AB (OF DIMENSIONS 33). ASSUME THAT THE ELEMENTS OF THE MATRICES ARE INTEGERS. USE FUNCTIONS WHILE IMPLEMENTING THIS PROGRAM