Ternary Operator MCQ Quiz in বাংলা - Objective Question with Answer for Ternary Operator - বিনামূল্যে ডাউনলোড করুন [PDF]

Concept:- 

• C provides two unusual operators for incrementing and decrementing the variables
• The increment operator ++ adds 1 to its operand, while the decrement operator – subtracts 1
• The unusual aspect is the ++ and – can be used either as prefix operator or postfix operator.
   

Calculation:-

In the first expression:

a++ +b → a is incremented and added to b , But since a++ is post increment operation a will change its value from 4 to 5 in next instruction.

a++ +b = 4 + 3 = 7 ( and a is incremented to 5 after this)

In the next print statement 

a++ +b 

a = 5 

b = 3 

a++ +b = 8 (a is incremented to 6 after this)

Concatenation operator || Concatenate columns or character strings to other columns is SQL.

eg. SELECT ‘Name’ || enamename FROM emp;

Output will be:

Name = JONES

Name = SMITH

In C programming, the bitwise OR operator is: | (single vertical bar)

It performs a bit-by-bit OR operation between two integer operands.

🔍 Example:

int a = 5;    / Binary: 0101
int b = 3;    / Binary: 0011
int result = a | b;  / Result: 0111 = 7

The correct answer is &.

Key Points

• & is a bitwise AND operator in many programming languages, including C, C++, Java, and Python.
• The bitwise AND operator performs a binary AND operation on two bits or binary numbers, returning a result where each bit is set to 1 if both corresponding bits of the operands are 1, and to 0 otherwise.
• It is used to manipulate individual bits of data, useful in low-level programming, such as system programming or embedded systems.
• Common applications include bit masking, where specific bits of a number are isolated or altered, and setting, clearing, or toggling individual bits.

Additional Information

• Bitwise Operators in General
  • Bitwise operators are used to perform operations on individual bits of data.
  • Common bitwise operators include AND (&), OR (|), XOR (^), NOT (~), left shift (<<), and right shift (>>).
  • These operators are essential in various applications, such as cryptography, network programming, and error detection algorithms.
• Bit Masking
  • Bit masking is a technique used to extract or manipulate specific bits within a binary number.
  • A mask is created by setting specific bits to 1 and performing a bitwise AND operation with the target number.
  • This technique is commonly used in embedded systems and hardware programming to control individual bits of registers.
• Bitwise Shift Operations
  • Bitwise shift operations, such as left shift (<<) and right shift (>>), move bits to the left or right within a binary number.
  • Left shifting a binary number by one position is equivalent to multiplying it by 2, while right shifting is equivalent to dividing it by 2.
  • These operations are efficient and commonly used in algorithms requiring fast multiplication or division by powers of 2.
• Logical vs. Bitwise Operators
  • Logical operators (&&, ||, !) operate on boolean values and return boolean results.
  • Bitwise operators operate on integer values at the binary level and return integer results.
  • Understanding the distinction between these operators is crucial for writing efficient and correct code, especially in system-level programming.

• Ternary operator and assignment operator associativity is right to left
• Ternary operator is ?:  and  Assignment operator is *=

Example:

Ternary operator:

(condition) ? condition_if_true : condition_if false;

Assignment operator:

In Binary Left Shift Operator, the left operands value is moved left by the number of bits specified by the right operand i.e. x<y.

Here 2^y < 9

y = 3

Consider n = 4

n ≪ 3 = 4 × 2³ = 32 → 32 + n = 32 + 4 = 36 i.e. 4 × 9 = 36

Note:- For better Understanding Try to run the above program.

Using << (Left Shift Operation) bit Pattern of the data can be shifted by specified number of positions to left. When data is shifted left , trailing zero’s are filled with zero.

Also << has higher precedence than &.

Hence given code will print binary equivalent of the given number.

if(a > b) {value = x;}

else{ value = y;}

can be return as:

value = a > b ? x : y

?: is called ternary operator.

If a then if c-d then a+c else a*c else a+b

If a then ? (c-d) (a+c)  (a*c) else a+b

If a then i?- cd + ac *ac else a+b

?a( ? –cd +ac *ac) a+b

In programming languages, the associativity of an operator is a property that determines how operators of the same precedence are grouped in the absence of parentheses.

Precedence and associativity of operators