What’s the output of the following program? Why?

Q

✍: Guest

A

#include <stdio.h>
main()
{
	typedef union
	{
		int a;
		char b[10];
		float c;
	}
	Union;
	
	Union x,y = {100};
	x.a = 50;
	strcpy(x.b,\"hello\");
	x.c = 21.50;
	
printf(\"Union x : %d %s %f \n\",x.a,x.b,x.c );
printf(\"Union y :%d %s%f \n\",y.a,y.b,y.c);
}

Given inputs X, Y, Z and operations | and & (meaning bitwise OR and AND, respectively)
What is output equal to in
output = (X & Y) | (X & Z) | (Y & Z)

2012-02-27, 3043👍, 0💬

What is the difference between an external iterator and an internal iterator? Describe an advantage of an external iterator.
What is the difference between an external iterator and an internal iterator? Describe an advantage of an external iterator. An internal iterator is implemented with member functions of the class that has items to step through. .An external iterator is implemented as a separate class that can be "at... 2012-02-23, 3187👍, 0💬

What do you mean by pure virtual functions?
What do you mean by pure virtual functions? A pure virtual member function is a member function that the base class forces derived classes to provide. Normally these member functions have no implementation. Pure virtual functions are equated to zero. class Shape { public: virtual void draw() = 0; }; 2012-02-24, 3070👍, 0💬

What’s the output of the following program? Why?
What’s the output of the following program? Why? #include <stdio.h> main() { typedef union { int a; char b[10]; float c; } Union; Union x,y = {100}; x.a = 50; strcpy(x.b,\"hello\"); x.c = 21.50; printf(\"Union x : %d %s %f \n\",x.a,x.b,x.c ); printf(\"Union y :%d %s%f \n\",y.a,y.b,y.c)... 2012-02-27, 3044👍, 0💬

What is polymorphism? Explain with an example?
What is polymorphism? Explain with an example? "Poly" means "many" and "morph" means "form". Polymorphism is the ability of an object (or reference) to assume (be replaced by) or become many different forms of object. Example: function overloading, function overriding, virtual functions. Another exa... 2012-02-24, 3034👍, 0💬

Explain which of the following declarations will compile and what will be constant ...
Explain which of the following declarations will compile and what will be constant ... Explain which of the following declarations will compile and what will be constant - a pointer or the value pointed at: * const char * * char const * * char * const Note: Ask the candidate whether the first declar... 2012-03-01, 3025👍, 0💬

Why are arrays usually processed with for loop?
Why are arrays usually processed with for loop? The real power of arrays comes from their facility of using an index variable to traverse the array, accessing each element with the same expression a[i]. All the is needed to make this work is a iterated statement in which the variable i serves as a c... 2012-02-29, 3018👍, 0💬

What problems might the following macro bring to the application?
What problems might the following macro bring to the application? #define sq(x) x*x 2012-03-02, 2978👍, 0💬

You’re given a simple code for the class BankCustomer. Write the following functions ...
You’re given a simple code for the class BankCustomer. Write the following functions ... You’re given a simple code for the class BankCustomer. Write the following functions: * Copy constructor * = operator overload * == operator overload * + operator overload (customers’ balances should be added u... 2012-03-01, 2978👍, 0💬

What is a scope resolution operator?
What is a scope resolution operator? A scope resolution operator (::), can be used to define the member functions of a class outside the class. 2012-02-23, 2965👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.