Question

The snippet that has to be used to check if “a” is not equal to “null” is
A.if(a!=null)
B.if (!a)
C.if(a!null)
D.if(a!==null)

Answer 1

_____✨ HEY MATE ✨______

➡️ Option (D) if(a!==null is the right answer ✔️

$<marquee>✌️ I THINK IT HELPED YOU ✌️$

Answer 2

The correct answer of the above option D if(a! == null)

Concept

• Only if the operands are of the same type and the contents line up can a rigorous comparison (like ===) be considered valid. The more popular abstract comparison operators, like ==, change the operands to the same type before comparing them. When comparing 0 to null, the not-equal operator!== returns a result that is either true or false.
• A relational operator is a language construct or operator used in programming that checks or establishes a relationship between two elements. These consist of inequality and equality in numbers, such as 4 3 and 5 = 5.
• These operators often evaluate to true or false in programming languages like Pascal, Ada, or Java that have a specific boolean data type built into their type system, depending on whether the conditional relationship between the two operands is true or false. Relational operators in languages like C yield integers 0 or 1, where 0 denotes false and any non-zero value denotes true.

#SPJ6