Answer / vishnu nayak

Union occupy same memory area for different members in a
union.
Same are is allocated for different data types of the
members of union
eg:
union
{
int a;
char c;
float f;
}temp;
Size of Float will be size of union.
same memory is used for char and int as well.
Advantages: Memory consumption is less.
Disadvanteges: if one of the member variable is updated the
it will be reflected in the remaining 2 variables.

Answer / vadivelt

Main disadvantage is, all the union member variables cannot
be initialised or used with different values at a time.

Explain how do you list files in a directory?

0 Answers  

---

Why void is used in c?

0 Answers  

---

2)#include<iostream.h> main() { printf("Hello World"); } the program prints Hello World without changing main() the o/p should be intialisation Hello World Desruct the changes should be a)iostream operator<<(iostream os, char*s) os<<'intialisation'<<(Hello World)<<Destruct b) c) d)none of the above

4 Answers   Siemens,

---

how to sort two array of characters and make a new array of characters.

1 Answers   Accenture,

---

Tell me can the size of an array be declared at runtime?

0 Answers  

---

write a progam to display the factors of a given number and disply how many prime numbers are there?

2 Answers  

---

How to write a code for implementing my own printf() and scanf().... Please hep me in this... I need a guidance... Can you give an coding for c... Please also explain about the header files used other than #include<stdio.h>...

0 Answers  

---

What is the right type to use for boolean values in c? Is there a standard type? Should I use #defines or enums for the true and false values?

0 Answers  

---

What does char * * argv mean in c?

0 Answers  

---

what is object oriental programing?

1 Answers  

---

If 4 digits number is input through the keyboard, Write a program to calculate sum of its 1st & 4th digit.

12 Answers   Google,

---

What is indirection?

0 Answers  

---