Consider the following variable declarations and definations in C .(i) int var 9 =1 ;(ii) int 9 var =2;(iii) int + =3; Choose the correct statement w.r.t above variables.

Consider the following variable declaratio... | আই সি টি Multiple Choice Question

<html lang="en"> <head> <meta charset="UTF-8"> <title>Explanation for C Variable Declarations and Definitions</title> <style> body { font-family: Arial, sans-serif; line-height: 1.5; margin: 20px; } code { background-color: #f9f9f9; padding: 2px 5px; border-radius: 4px; color: #d63384; } .code-block { background-color: #f9f9f9; padding: 10px; border-radius: 4px; overflow-x: auto; } .valid, .invalid { font-weight: bold; } .valid { color: green; } .invalid { color: red; } </style> </head> <body> <h1>Explanation for C Variable Declarations and Definitions</h1>

The given question asks about the validity of certain variable declarations in the C programming language:

Here are the declarations and definitions:

Let's analyze each one:

This declaration is <span class="valid">valid</span>. According to C naming conventions, variable names can include letters (both uppercase and lowercase), digits, and the underscore character, but they must start with a letter or an underscore. In this case, <code>var9</code> starts with a letter and includes a digit, making it a perfectly valid variable name.

This declaration is <span class="invalid">invalid</span>. Variable names in C cannot start with a digit. Since <code>9var</code> begins with the digit '9', this violates the naming rules and is therefore an invalid declaration.

This declaration is <span class="invalid">invalid</span>. The '+' character is not allowed in variable names as it is an operator in C. Variable names can only contain letters, digits, and underscores, and must start with a letter or an underscore. Therefore, using the '+' character in the variable name makes it invalid.

Given the above breakdown, none of the statements provided in the choices ('Both i. & iii. are valid', 'Only i. is valid', 'Both i. and ii. are valid ', 'All of these') correctly describe the validity of the variable declarations. However, the correct answer amongst the provided choices should be:

<code>Only i. is valid</code>

</div>

This is because (i) is the only valid declaration according to C naming conventions for variables.

References:

</footer> </body> </html>

Consider the following variable declarations and definations in C .
(i) int var 9 =1 ;
(ii) int 9 var =2;
(iii) int + =3;
Choose the correct statement w.r.t above variables.

বিস্তারিত ব্যাখ্যা

সকল অপশন

বিস্তারিত ব্যাখ্যা

সকল অপশন

সম্পর্কিত প্রশ্ন