Which classes allow primitive types to be accessed as objects?
Storage
Virtual
Friend
Wrapper
Correct Answer :
B. Virtual
Related Questions
p++ executes faster than p + 1.
True
False
continue statement is used
to go to the next iteration in a loop
come out of a loop
exit and return to the main function
restarts iterations from beginning of loop
Which header file is essential for using strcmp() function?
string.h
strings.h
text.h
strcmp.h
The output of the following code is:
void main()
{
int a = 20;
printf("%d\t%d
", ++a, a);
}
{
int a = 20;
printf("%d\t%d
", ++a, a);
}
21 21
20 21
21 20
20 20
Which one of the following is not a valid reserved keyword in C++
Explicit
Public
Implicit
Private
The statement "for (i = 0, j = 2; j <= 10; j++)" is a valid statement in 'C'.
True
False
do-while loop is useful when we want the statements within the loop must be executed
Only once
At least once
More than Once
Any one of the above
The -------------------------- loop executes at least once.
for
while
do-while
while & do-while
Character data types cannot be declared as unsigned.
True
False
A function to be called must be ended with a----------------
.
?
;
none of the above
In the expression - 'x + y + 3z =20'
x + y' is a keyword
3 and 20 are constants
3z is a constant
y is a variable and z is a constant
Left shift operator rotates the bits on the left and places them to the right.
True
False
Union is used to hold different data at different time.
True
False
The output of the following code is:
main()
{
int a[10], i;
for (i = 1; I <= 0; i++)
{
scanf("%d", a[i]);
printf("%d", a[i]);
}
}
{
int a[10], i;
for (i = 1; I <= 0; i++)
{
scanf("%d", a[i]);
printf("%d", a[i]);
}
}
10
Logical error
Runtime error
1 to 10 will be displayed
The function fopen() on failure returns---------------------.
0
NULL
1
none of the above
emp name' is a valid variable name.
True
False
How many times the following loop will execute?
for (a = 0; a < 4; a++)
printf("hello
");
3
4
5
infinite
What will be output if you will compile and execute the following c code?
#include
int main(){
char c=125;
c=c+10;
printf("%d",c);
return 0;
}
135
+INF
-121
-135
The output of the following code is:
main()
{
int a = 0;
for (; i = 0; i++)
printf("%d", a);
}
{
int a = 0;
for (; i = 0; i++)
printf("%d", a);
}
0
Nothing will be displayed
Infinite loop
None of the above
Nested macros are allowed.
True
False
No commas or blanks are allowed within an integer or a real constant.
True
False
What would be the output of the following program?
int x=40;
main(){
int x=20;
printf("
%d",x);
}
main(){
int x=20;
printf("
%d",x);
}
40
20
Compilation Error
Garbeg Value
The same variable names of automatic type can be used in different functions without any conflict.
True
False
Identify the wrong statement
putchar(65)
putchar('x')
putchar("x")
putchar('
')
There are total ------ numbers of operators in 'C'.
35
45
55
40
A continue statement causes execution to skip to
the return 0; statement
the first statement after the loop
the statement following the continue statement
the next iteration of the loop
Which of the following expressions is wrong
float a =123.56;
char ch ='T' * 'A';
char ch ='T' *20;
3 +a = b;
What will be output if you will compile and execute the following c code?
#include
int main(){
int i=320;
char *ptr=(char *)&i;
printf("%d",*ptr);
return 0;
}
int main(){
int i=320;
char *ptr=(char *)&i;
printf("%d",*ptr);
return 0;
}
1
64
320
Compiler Error
For 16bit compiler allowable range for integer constants is ______ ?
3.4e38 to 3.4e38
32767 to 32768
32768 to 32767
32668 to 32667
The expression "int i = j = k = 0;" is invalid.
True
False