i need the answer quickly Q2: Answer two of the following:1- Write a C++ function that returns the sign of the number. The function should work withinteger and float numbers.(-1 ifx<0,sign(x) ={ 0 if x = 0,1 if x>0.C++2- Write a C++ program to ask the user to enter his/her first and second name. After that, askthem to enter their third name and then save the first, second and third names in a new string.3- Write a C++ program to enter records of students using the class method. The class shouldcontain Student ID, Age and Date of birth members. All members are needed to be private.

C++ program to solve the problems is given below.

Answered: Q2: Answer two of the following: 1-…

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter6: User-defined Functions

Section: Chapter Questions

Problem 1TF: Mark the following statements as true or false: a. To use a predefined function in a program, you...

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2- Write a C++ function that accept one input argument only. The input could be astring, int, float or double. If the input is string, the function returns its number ofcharacters. If the input is integer, the function returns its number of digits. If theinput is float, the function returns its number of digits before the point (for example,if the number is 8502.56, the function returns 4). If the input is double, the functionreturns its number of digits before the point and its number of digits after the point(for example, if the number is 120.5654, the function returns 3 and 4). Then, write aC++ program to test your function by entering the following values: “Quiz1” forstring, -5000 for int, 9864.1 for float, and 801.651237 for double.
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Excercise 4: Write a C++ program that converts Omani Riyals to United States Dollars. The mainfunction asks the user to input the amount of money in OMR. Then the main function calls another function to convert the amount to USD. Finally the main function displays the result.Recall that 1 OMR = 2.6USD.
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Tutoriel 2 Exercise 1: Write a C++ program that reads a character. If the character input is a space, print a message specifying it. If the character input is a digit, print a message specifying it. Exercise 2: Write a C++ program that reads a character. Checks whether the character variable ch stores a space or not; if it does, the number of spaces are incremented by 1.
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cemaining Time: 41 minutes, 23 seconds. Question Completion Status: 70 points Sav QUESTION 4 Write a C++ function (not a program), that is passed a positive integer value. The function prints all the even numbers between 0 and that value. The function does not return any values to the calling function. The function is called by the following statement: evensteven (num) ; TT T T Paragraph Arial : 3 (12pt) * D O Q T T. O f Mashups 田田图□m HTML CSS Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Close Window Save and Submit APR 19 Pro 80 888 esc F2 F3 F4 F5 F6 F7 @ # $ % * 2 3 4 Q W E T Y R

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