Programming & Computer Science Answers

Design XOR gate by using only NOR gates.

Write a loop that inputs words until the user enters STOP. After each input, the program should number each entry and print in this format:

#1: You entered _____
When STOP is entered, the total number of words entered should be printed in this format:

All done. __ words entered.
Sample Run
Please enter the next word: cat
#1: You entered cat
Please enter the next word: iguana
#2: You entered iguana
Please enter the next word: zebra
#3: You entered zebra
Please enter the next word: dolphin
#4: You entered dolphin
Please enter the next word: STOP
All done. 4 words entered.

An overloaded operator always requires one less argument than its number of operands.
Why?

If three objects of a class are defined, how many copies of that class’s data items are stored in memory? How many copies of its member functions? Explain with the help of a valid example by writing code and depict it via diagrams where appropriate.

Write and run a 8086 Assembly language program that converts a three digit ASCII number

stored in three consecutive byte locations in the memory, into a binary number. The output

should be stored in DX register.

Start with the String class from the Str example. Add a member function called upit() that converts the string to all uppercase. You can use the toupper() library function, which takes a single character as an argument and returns a character that has been converted (if necessary) to uppercase. This function uses the CCTYPE header file. Write some code in main() to test upit().

#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <cstring> //for strcpy(), etc
#include <cctype> //for toupper()
using namespace std;

“Component-based Software Engineering allows faster delivery”. State whether this statement is true or false. Justify your answer

Write programs that will accept an integer input and will display asterisks correspondingly. See examples below:

Program 1:
Enter integer: 5
Output:
* * * * *
* * * * *
* * * * *
* * * * *
* * * * *
//the output is a 5 x 5 set of asterisks

Program 2:
Enter integer: 4
Output:
*
* *
* * *
* * * *
//the output is a triangle-shaped set of asterisks that start with 1 then ends with 4

Program 3:
Enter integer: 5
Output:
* * * * *
* *
* *
* *
* * * * *