Operators Questions in C2

6.

Find the output of the following program.

#include void main() 
{ 
int y=10;
 if(y++>9 && y++!=10 && y++>11) 
printf("%d", y); 
else 
printf("%d", y); 
}

A. 11
B. 12
C. 13
D. 14
E. Compilation error

Answer: C

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7.

Determine output of the following program code.

#include 
void main()
 {
 int a, b=7; a = b<4 :="" b="">4 ? 7>>1 : a; 
printf("%d %d", a, b); 
}

A. 3 7
B. 7 3
C. 8 3
D. 3 8
E. None

Answer: D

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8.

Choose the correct output for the following program.


#include 
void main() 
{
 int a=10, b=11, c=13, d; 
d = (a=c, b+=a, c=a+b+c); 
printf("%d %d %d %d", d, a, b, c); 
}


A. 50, 13, 11, 13
B. 50, 13, 24, 50
C. 13, 10, 24, 50
D. 50, 13, 24, 13
E. 13, 13, 24, 13


Answer : B


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9. 

What will be output of the following program?

#include

int main(){

    int a;

    a=015 + 0x71 +5;

    printf("%d",a);

    return 0;

}

Output: 

Turbo C++ 3.0: 131

Turbo C ++4.5: 131

Linux GCC: 131

Visual C++: 131

---------------------------------------------

10.

What is the output of this C code?

int main() 
{
 int i = -5; 
int k = i %4; 
printf("%d\n", k); 
}

A. Compile time error
B. -1
C.  1
D. None

Answer: B

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Operators Questions in C1

An operator is a symbol that tells the compiler to perform specific mathematical or logical functions. C language is rich in built-in operators and provides the following types of operators −

• Arithmetic Operators
• Relational Operators
• Logical Operators
• Bitwise Operators
• Assignment Operators
• Misc Operators

--------------------------------------------------------------

1. 

Which of the following operator takes only integer operands?

A. +

B. *

C. /

D. %

E. None of these

Answer: D

--------------------------------------------------------

2.

In an expression involving || operator, evaluation 

I. Will be stopped if one of its components evaluates to false 

II. Will be stopped if one of its components evaluates to true

III. Takes place from right to left

IV. Takes place from left to right

A. I and III

B. I and II

C. II and III

D. II and IV

E. III and IV

Answer: D

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3. 

Which operator from the following has the lowest priority?

A. Assignment operator

B. Division operator

C. Comma operator

D. Conditional operator

E. Unary-operator

Answer: C

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4. 

What will be the output when following code is executed?

void main() 

{ int a=10, b; 

b = a++ + ++a; 

printf("%d %d %d %d", b, a++, a, ++a);

}

A. 12 10 11 13

B. 22 12 12 13

C. 22 11 11 11

D. 22 14 12 13
E. 22 13 13 13

Answer: E

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5.

Identify the correct output of the following code:

void main() 

{ 

int w=10, x=5, y=3, z=3; 

if( (w < x ) && (y=z++) ) 

printf("%d %d %d %d", w, x, y, z); 

else 

printf("%d %d %d %d", w, x, y, z); 

}

A. 10 5 4 4

B. 10 5 3 3

C. 10 5 4 3

D. 10 5 3 4

E. 10 5 5 5

Answer: B

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