Programming & Computer Science Answers

a C program that declare an array of five characters using a WHILE loop and sort the elements in row one in alphabetical order using a nested FOR loop and IF statement and print the sorted characters using a WHILE loop

write an application to print out the numbers 10 through 49 in the following manner

10 11 12 13 14 15 16 17 18 19

20 21 22 23 24 25 26 27 28 29

30 31 32 33 34 35 36 37 38 39

40 41 42 43 44 45 46 47 48 49

How do I make a float just 2 decimal point?

5)     You have been appointed the chief IT manager of Housing Finance Corporation. At the moment, the operations are manual and the management would like you to automate them.

Assume the following details:

Ø Employees Names

Ø Box Number

Ø Town

Ø Personnel Number

Ø Department

Ø Basic Salary

Ø Consolidated Allowances

Required:

i) Write a JAVA class declaration for the above.                                                  (6 mks)

ii) Write appropriate function definitions.                                                          (5 mks)

iii) Write the appropriate driver program (main function

1)     A fibonacci series is defined as follows:-

Fb[0] = 0

Fb[1] = 1

Fb[i] = Fb[i – 1] + fb[i – 2] for i >= 2

Write a program that generates the first n (the user decides how many) fibonacci terms and prints them. The program should also print their sum. (Use array(s))

1)     Write a program that accepts the amount of money deposited in a bank account, the annual interest rate and the target amount (The amount of money the account holder wants to have in the account after a period of time) and then calculates the number of years it will take for the money to accumulate to the targeted amount. NB: 1) The interest being earned is Compound Interest. 2) Don’t use the formula for calculating compound interest.

For example if the money deposited is 10000 and the target amount is 20000 and the account earns an interest rate (compound) of 10% pa, then the output should be: -

It will take 8 years for your money to reach your target.

By the end of this period, the amount in your account will be 21435.89    

1)     Write a program that accepts a set of integers (the user decides how many) and then stores them in an array. The main function then passes these values one by one to a method called get_even which returns 1 if the integer is even and 0 if it is odd. The main function should then specify which numbers were even, which ones were odd and their respective totals. It should also specify how many numbers were odd and how many were even. For example, if the user enters 25 34 56 17 14 20, the output should be: -

25 is an odd number

34 is an even number

56 is an even number

17 is an odd number

14 is an even number

20 is an even number 

There is a total of 2 odd numbers and their sum is 42.

There is a total of 4 even numbers and their sum is 124.

NB: All data input and output should be done in main. Don’t use % any where in the main function (% can be used in the method).                                 

Create a program using C# that implements the stream ciphers Cryptographic method . A stream cipher method inputs digits, bits, or characters and encrypts the stream of data. The onetime pad is an example of a stream cipher.

In this formative you have been requested to create an application that will work as the One-time pad (OTP), also called Vernam-cipher or the perfect cipher. This is a crypto algorithm where plaintext is combined with a random key and generate a ciphertext.

Marks allocation 

1. The programme should received a string " How are you Isaac " - 10

2. The programme should generate an OTP of the length of the string entered "How are you Isaac "- 10

3. The program should Generate a Ciphertext based on the above example- 30

Create a class called Triangle that stores the length of the base and height of a right-angled triangle in two instance variables. Include a constructor that sets these values. Also include a default constructor. Define two functions. The first is hypot( ), which returns the length of the hypotenuse. The second is area( ), which returns the area of the rectangle. (8 mks)

ii) Write an appropriate driver program for the class created above. (4 mks)

Create a JAVA class for Bank Account abstract data type. It should have the attributes account number (integer), account holder (string) and current balance (float). Define methods to get and set account numbers and account holders (total = 4). Add a method, which will return the account holders current balance. Finally, add two methods, which allow deposit and withdrawal of money updating the current balance as appropriate. NB: Dont add any other methods (member functions)

Using the Bank Account class above, write a program to test these methods as follows: -

i) Create three bank accounts, two to start with balances 0.00 and one with 2,000.

ii) Set the account numbers to 101,102 and 103 respectively.

iii) Set names of account holders.

iv) Credit (deposit) account 101 with 2,000.00 and account 102 with 1,750.00.

v) Debit (withdraw) account 103 with 1,250.00

vi) Display the account numbers, account holders and current balance for the three