C Programming Questions and Answers

Question about car parking application

A car parking application needs to store number of car park spaces. Write the declaration for this variable, and set its value to 15    

The following statement is intended to allow the user to input an integer. Explain why it does not work and say how you would correct it

What will be the values of int variables x, y and z, after executing the following sequence of statements

Write a fragment of code which asks the user to input the number of items and the weights of one item, then calculates the total weight and outputs a message in the following format:

When a customer has a total bill over £20, they can get a free newspaper. In addition, if the bill is over £50, they can also get 10% discount. Write a fragment of code which uses the value of the variable total to output whether or not  the customer can get a free newspaper and a whether they also get 10% discount  

A function getCost requires a price and a quantity as a parameter, and returns the total cost. Write a definition of this function (including its signature and the function body).

A function calculates speed given distance and time has been defined with the following signature: float getSpeed(float distance, float hours)

You are writing a program which allows a user to input the values of variable miles and time.  Write a fragment of code to show how you would call the above function to output the speed

Write the code to declare an array called menu to hold 16 prices

Write a fragment of code to input the values stored in the array which you declared in question 9 above:      

Explain why the "logical length" of an array and its physical length might be different. How would you ensure that only the values actually stored in an incomplete array are processed.  You should consider both input and output of these values

Write the code to declare a pointer myptr to an float. Allocate memory space to it. Then input the value to which it will point, and output both the pointer and the value to which it points

You need to write a function called convert To Percent to convert elements of an array of float values

a.the size of the array needs to be passed as a parameter

b.there is no need to return the processed array

Write the signature of the function convertToPercent described in question 13

a.  Using appropriate examples to illustrate your answer, identify TWO ways in which the C programming language is similar to the C++ programming language

b.  Using appropriate examples to illustrate your answer, identify THREE ways in which the C programming language is different from the C++ programming language

Write the definition of a method setFees()to be added to the Student class, which sets the value of fees from a parameter value

Write the definition of a method toString()to be added to the Student class, which returns all of the information about a Student object as a String (in a suitable format)

This question is about the constructor in the Student class

i.write down the signature of the constructor

ii.explain how you know that it is a constructor

iii.explain its purpose

Write the code to be added to the StudentTest class, which

i.declares a Student object called ss9 and creates it with the student name: Angela and the id number : 9876

ii.which would output to the terminal window the name of a Student ss2 (already declared and created previously)

Define a method findStudentByName(), to be added to the CourseList class, which would return a Student whose name was given as a parameter value.

(Note: the quickest way to do this is to copy/paste/edit  for existing code)

a.  Using appropriate examples to illustrate your answer, identify ONE way in which the Java  programming language is similar to the C/C++ programming languages

b.  Using appropriate examples to illustrate your answer, identify THREE ways in which the Java programming language is different from the C++ programming language

c.Explain the term "Abstraction" used in the context of object oriented design and provide an example of this from the case study above.