strcat() function ----------------------- two strings.
delete
concatenate
compare
none of the above
Correct Answer :
B. concatenate
Related Questions
------ is the ternary operator
?,-
?,:
++<--
none of the above
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 output of the following code is:
#define sqr(x= x*x)
main()
{
int a = 10, b = 5;
printf("%d, %d", sqr(a+b),sqr(++a));
}
main()
{
int a = 10, b = 5;
printf("%d, %d", sqr(a+b),sqr(++a));
}
77, 121
225, 121
77< 144
Compilation error
The -------------------------- loop executes at least once.
for
while
do-while
while & do-while
unsigned' is a valid variable name.
True
False
unsigned char has a range from 0 to ------------
253
254
255
256
What's wrong? for (int k = 2, k <=12, k++)
the increment should always be ++k
the variable must always be the letter i when using a for loop
there should be a semicolon at the end of the statement
the commas should be semicolons
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
enum helps to create user defined datatype.
True
False
Right shifting an operand 1bit is equivalent to multiplying it by 2.
True
False
C programs are converted into machine language with the help of
An Editor
A compiler
An operating system
None of the above
The output of the following code is:
void main()
{
int a = 0;
while (a<=50) for(;;) if(++a % 50==0) break;
printf("a = %d", a);
}
{
int a = 0;
while (a<=50) for(;;) if(++a % 50==0) break;
printf("a = %d", a);
}
a = 100
a = 50
compilation error
runtime error
The value of an enumerated datatype can be read using scanf() function.
True
False
What will be output if you will compile and execute the following c code?
#include
int main()
{
float a=5.2;
if(a==5.2)
printf("Equal");
else if(a<5.2)
printf("Less than");
else
printf("Greater than");
return 0;
}
int main()
{
float a=5.2;
if(a==5.2)
printf("Equal");
else if(a<5.2)
printf("Less than");
else
printf("Greater than");
return 0;
}
Less than
Equal
Greater than
None of above
The output of the following code is:
main()
{
xyz: goto abc;
printf("Hello");
abc: printf("World");
goto xyz;
}
{
xyz: goto abc;
printf("Hello");
abc: printf("World");
goto xyz;
}
Infinite loop
Hello World
World Hello
Compilation error
Which of the following expressions is wrong
float a =123.56;
char ch ='T' * 'A';
char ch ='T' *20;
3 +a = b;
Which of the following is not recommended in a header file?
Type definitions (typedefs)
Class definitions
Function definitions
Template definitions
The expression (i + j)++ is illegal.
True
False
Which among the following is a unconditional control structure
do-while
if-else
goto
for
Which options shows the correct hierarchy of arithmetic operators
**, * or /, + or -
**, *, /, +, -
**< /< *< +<-
/ or *, - or +
A pointer is an indication of the variable to be accessed next.
True
False
# define PI = 8;' is the correct declaration of macros.
True
False
The size of signed integer is ------ bytes.
4
2
8
10
The identifier argv[] is a pointer to an array of strings.
True
False
static variable will not always have assigned value.
True
False
A function to be called must be ended with a----------------
.
?
;
none of the above
gets() and puts() are unformatted I/O functions.
True
False
Variables declared as register storage type gets stored in CPU registers.
True
False
Every if statement can be converted into an equivalent switch statement.
True
False
Which of the following is the most preferred way of throwing and handling exceptions?
Throw by value and catch by reference.
Throw by reference and catch by reference.
Throw by value and catch by value
Throw the pointer value and provide catch for teh pointer type.