Which of the following expressions is wrong
float a =123.56;
char ch ='T' * 'A';
char ch ='T' *20;
3 +a = b;
Correct Answer :
D. 3 +a = b;
Related Questions
Left shift operator rotates the bits on the left and places them to the right.
True
False
What's wrong? while( (i < 10) && (i > 24))
the logical operator && cannot be used in a test condition
the while loop is an exit-condition loop
the test condition is always true
the test condition is always false
The output of the following code is:
main()
{
int a = 5, b = 6;
(a == b? printf("%d", a));
}
{
int a = 5, b = 6;
(a == b? printf("%d", a));
}
0
5
Error
None of the above
The output of the following code is:
void main()
{
int z, a = 5, b = 3; z = a * 2 + 26 % 3;
printf("%d", z); }
{
int z, a = 5, b = 3; z = a * 2 + 26 % 3;
printf("%d", z); }
10
0
12
None of the above
Character data types cannot be declared as unsigned.
True
False
Structures within structures cannot be created.
True
False
It is necessary to initialize the array at the time of declaration.
True
False
What is right way to Initialization array?
int num[6] = { 2, 4, 12, 5, 45, 5 } ;
int n{} = { 2, 4, 12, 5, 45, 5 } ;
int n{6} = { 2< 4< 12 } ;
int n(6) = { 2, 4, 12, 5, 45, 5 } ;
Union is used to hold different data at different time.
True
False
The expression (i + j)++ is illegal.
True
False
A pointer is an indication of the variable to be accessed next.
True
False
The value of an enumerated datatype can be read using scanf() function.
True
False
Which of the following correctly describes C++ language?
Statically typed language
Dynamically typed language
Both Statically and dynamically typed language
Type-less language
Which header file is essential for using strcmp() function?
string.h
strings.h
text.h
strcmp.h
When a user defined function is defined in program, then it has to be called at least once from the main().
True
False
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
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
How many times the following loop will execute?
for (a = 0; a < 4; a++)
printf("hello
");
3
4
5
infinite
The output of the following code is:
main()
{
int sub[50];
for(i=0; i<=48;i++)
{
sub[i]=i;
printf("
%d", sub[i]);
}
}
{
int sub[50];
for(i=0; i<=48;i++)
{
sub[i]=i;
printf("
%d", sub[i]);
}
}
0 to 48 will be displayed
48
49
Compilation Error
The output of the following code is:
void main()
{
char a = 'B';
switch (a)
{
case 'A' : printf("a");
case 'B' : printf("b");
default : printf("c");
}
{
char a = 'B';
switch (a)
{
case 'A' : printf("a");
case 'B' : printf("b");
default : printf("c");
}
B
b
bca
bc
The array 'char name[10] can consist of a maximum of 9 characters.
True
False
Variables declared as register storage type gets stored in CPU registers.
True
False
Which one of the following is not a valid reserved keyword in C++
Explicit
Public
Implicit
Private
unsigned' is a valid variable name.
True
False
Which of the following is not a preprocessor directive
#if
#elseif
#undef
#pragma
The function fopen() on failure returns---------------------.
0
NULL
1
none of the above
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
The-------------------- statement helps immediate exit from any part of the loop
break
continue
exit
All of the above
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
Identify the wrong statement
putchar(65)
putchar('x')
putchar("x")
putchar('
')