What is std :: flush?

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How many different levels of pointers are there?

0 Answers   Genpact,

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In the derived class, which data member of the base class are visible?

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Explain the isa and hasa class relationships. How would you implement each?

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Can non-public members of another instance of the class be retrieved by the method of the same class?

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Can you declare an array without a size in c++?

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how to create window program in c++.please explain.

1 Answers   Microsoft,

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What is the difference between set and map in c++?

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Why for local variables the memory required to hold the variable is allocated from the program stack and for new its allocated from the heap?

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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

2 Answers   Quark,

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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

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tell me about yourself ?i want answer for frehers with various exasmples?

2 Answers   HCL,

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