Write a program which uses functions like strcmp(), strcpy()? etc
What are vectors used for in c++?
What is the real purpose of class – to export data?
What is the difference in size of this two clasees? Class A { int a; char c; float f; } Class B { float f; char c; int a; }
What is the difference between public and private data members?
What is the use of typedef?
What is command line arguments in C++? What are its uses? Where we have to use this?
Explain mutable storage class specifier.
If you hear the cpu fan is running and the monitor power is still on, but you did not see anything show up in the monitor screen. What would you do to find out what is going wrong?
write a program that reads in a file and counts the number of lines, words, and characters. Your program should ask the user to input a filename. Open the file and report an error if the file does not exist or cannot be opened for some other reason. Then read in the contents of the file and count the number of lines, words, and characters in the file. Also print additional information about the file, such as the longest and shortest words, and longest and shortest lines. For simplicity, we define a word to be one or more characters ending with white space (a space, tab, carriage return, etc.). Functions for checking the types of characters can be found in the ctype.h header file, so you want to include this header file in your program. For example, the sentence below could be all that is in a file. This sentence IT 104 is taught in C++. has 32 characters, one line, and six words. The shortest line is 32 characters. The longest line is 32 characters. The shortest word is 2 characters. The longest word is 6 characters
How many lines of code you have written for a single program?
class Alpha { public: char data[10000]; Alpha(); ~Alpha(); }; class Beta { public: Beta() { n = 0; } void FillData(Alpha a); private: int n; }; How do you make the above sample code more efficient? a) If possible, make the constructor for Beta private to reduce the overhead of public constructors. b) Change the return type in FillData to int to negate the implicit return conversion from "int" to "void". c) Make the destructor for Alpha virtual. d) Make the constructor for Alpha virtual. e) Pass a const reference to Alpha in FillData
Write a C++ program to sort digits of all the 4 digit number and display the sorted 4 digit number