Answer / dallasnorth40

++ before the variable increments the variable before the
value is taken/used.
++ after the variable takes/uses the value, then increments.

Given:
int x = 5;
int y = 0;

y = x++;
This will leave y = 5 and x = 6.


y = ++x;
This will leave y = 6 and x = 6.

Answer / abhishek

This means if you declare the value for x=2 and used in
loop, while printing the value of ++x it will print 3 and if
used x++ then it will print 2 and then increment the value
for x and then next rotation it will print 3.
eg.1)
.....
..
..
++x OR x++;
printf("value of " ++x OR x++);
...
..
..

Answer / sailaxmi

++x is pre-increment

say for example
the value of a=1
int a,r;
r= ++a;

now the value of "a" is incremented to 2 n then assigned to r...


x++ is post increment
say for exmaple

the value of a is 3

int a,r;
r=a++;

the value of a(initially 3) will be assigned to r..... n
then the value of "a" gets incremented to 4.

Answer / divya prabhu

++x means preincrement x, and then assign .
i.e
first increment x ==> x+1 and then assign the incremented
value back to x ==> x=x+1


x++ means postincrement x, and then assign .
i.e
first assign value of x to x==> x and then increment value of
x, x ==> x+1

Answer / chandrakant rohi

++x
it means pre-increament ,before execute the x first it increment
Ex int x=10;
printf("%d",++x);

ans=11
and
x++ means post_increament,first excute the statment and then increment ;
Ex
int x=10;
printf("%d",x++);
ans =10;

Answer / prabu

++x mean pre increament
eample:

for(i=1;i<=1;i++)
{
printf("i value is=",i);
}
the output: i=1
x++ mean post increament
example:
for(i=1;i<=1;++1)
{
printf("i value is =",i);
}

the output: i=2

Answer / shaleen

their is not any difference betweem any two.

write a proram using exceptional handling create a error & display the message "THERE IS AN ERROR?... PLEASE RECTIFY"?

1 Answers  

Complexity T(n) What is the time complexity T(n) of the following portions of code? For simplicity, you may assume that n is a power of 2. That is, n = 2k for some positive integer k. a) ? for (i = 1; i <= n; i++) { j = n; cout << i << ? ? j << ? ? << endl; } b) ? for (i = 0; i <= n; i += 2) { j = n; cout << i << ? ? j << ? ? << endl; } c) ? for (i = n; i >= 1; i = i/2) { j = n; cout << i << ? ? j << ? ? << endl; } d) for (i = 1; i <= n; i++) { j = n; while (j >= 0) { cout << i << ? ? j << ? ? << endl; j = j - 2; } }

0 Answers   Qatar University,

An array of size 5X5 is given to us. The elements from 1 to 25 are to be inserted in the array, such that starting from a particular position for an element i, the next element i+1can be inserted only at the mentioned positions (u,v), and if these all positions are occupied then it returns giving a count of how many positions have been occupied in the array: (u,v) = (x+/-3 , y) (u,v) = (x , y+/-3) (u,v) = (x+/-2 , y+/-2). Example: if the starting element is 1 with the given positions (1,2), then next element 2 can be placed at any one of the positions marked with *. _ _ _ _ _ 1 _ _ _ * _ _ _ _ _ _ _ * _ _ * _ _ _ _

0 Answers   Nagarro,

What output does this program generate as shown? Why? class A { A() { cout << "A::A()" << endl; } ~A() { cout << "A::~A()" << endl; throw "A::exception"; } }; class B { B() { cout << "B::B()" << endl; throw "B::exception"; } ~B() { cout << "B::~B()"; } }; int main(int, char**) { try { cout << "Entering try...catch block" << endl; A objectA; B objectB; cout << "Exiting try...catch block" << endl; } catch (char* ex) { cout << ex << endl; } return 0; }

0 Answers  

Write a program using one dimensional array that accept five values from the keyboard. Then it should also accept a number to search. This number is to be searched if it among the five input values. If it is found, display the message “Search number is found!” otherwise, display “Search is lost”. Example: Enter 5 numbers: 10 15 20 7 8 Enter number to search: 7 Search number is found!

2 Answers   College School Exams Tests,

. Write a program using two-dimensional arrays that computes the sum of data in tows and the sum of data in columns of the 3x3 (three by three) array variable n[3][3].

2 Answers   IBM,

Perform the functionality of 2-D array through 1-D array and in it the functions to be performed were: (1) Display the array in 2-D format (2) Display a particular element (3) Display a particular row (4) Display a particular column

1 Answers   Nagarro,

write a function -oriented program that generates the Fibonacci, the current numbers of n(as input) and display them (series). In Fibonacci, the current third number is the sum of the previous number.

3 Answers  

can you please write a program for deadlock that can detect deadlock and to prevent deadlock.

0 Answers  

1. Write a program using one dimensional array that calculates the sum and average of the five input values from the keyboard and prints the calculated sum and average.

2 Answers  

Wrie a function which returns the most frequent number in a list of integers. Handle the case of more than one number which meets this criterion. public static int[] GetFrequency(int[] list)

3 Answers   Nagarro,

How to swap two ASCII numbers?

0 Answers