Programming & Computer Science Answers

by CodeChum Admin

Do you still know what being divisible by a certain number means? In case you forgot, being divisible means that the number is capable of being divided by another number without a remainder. With this knowledge, you can surely solve this problem!

Instructions:

1. Input one integer.
2. Make a conditional statement that contains the following conditions:
3. If the integer is only divisible by 3, print "Divisible by 3"
4. If the integer is only divisible by 4, print "Divisible by 4"
5. If the integer is divisible by both 3 and 4, print "Divisible by 3 and 4"

**Using a three dimensional array***

Sample:

Enter a number of tables: 2

Enter a number of rows: 2

Enter a number of columns: 2

Enter 8 number of elements:

1

2

3

4

5

6

7

8

The biggest number among them is: 8

The smallest number among them is: 1

Then second to the biggest number is: 7

In a hypothetical situation, select an industry of your choice. Given that there is a perennial issue that begs for automation or mechanization of the "as-is system":

i. develop a requirement elicitation technique (use at least four and explain explicitly how you used them) to appraise yourself with the issue, given that you have just been appointed as a freelance systems analyst;

The following code is supposed to display the positive even numbers less than 12. That is, it will

output the numbers 2, 4, 6, 8 and 10. However, there is a logical error in the code. Explain what the output

of the code below will be. Then write a small program including the code below and make the necessary

changes to fix the code so that it displays what it is intended to display. Ensure that your program works

correctly. Only submit the program, not the output.

Hint: Use variable diagrams to trace the program to help you find the logical error.

int x = 1;

while (x

!= 12)

{

cout << x <<

endl; x = x +

2;

}

1. Create two classes—Martian and Jupiterian—that descend from Alien. Supply each with a constructor that sets the Alien data fields with values you choose. For example, you can decide that a Martian has four eyes but a Jupiterian has only two. Save the files as Martian.java and Jupiterian.java.

Distributed system is described as scalable when it remains effective when there is a

significant increase in the number of resources and the number of users. However, these

systems sometimes face performance bottlenecks.

How can these be avoided?

A University department has a file called exam marks which contains a list of

examination marks indexed by student names in alphabetical order. A student manages

to access the exam marks file. The student cannot read the file since it is encrypted.

However, they can work out the position of their own mark making use of the fact that

the students are listed in alphabetical order. The student swaps their mark with that of

the student who is always ‘top of the class’.

Write a paragraph discussing which of the security features has been breached?