Back-End Programming Exam > Back-End Programming Videos > Learn to Program with C++: Beginner to Expert > C++ Programming Tutorials - Variables
C++ Programming Tutorials - Variables Video Lecture | Learn to Program with C++: Beginner to Expert - Back-End Programming
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73 videos|7 docs|23 tests
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FAQs on C++ Programming Tutorials - Variables Video Lecture - Learn to Program with C++: Beginner to Expert - Back-End Programming
| 1. What is a variable in C programming? |  |
Ans. A variable in C programming is a named location in the computer's memory where data can be stored and manipulated. It has a specific data type (such as int, float, char, etc.) and can hold a value that can be changed during the program's execution.
| 2. How do you declare a variable in C programming? | |
Ans. To declare a variable in C programming, you need to specify the variable's data type followed by its name. For example, to declare an integer variable named "age", you can use the syntax: int age;
| 3. How do you assign a value to a variable in C programming? | |
Ans. To assign a value to a variable in C programming, you can use the assignment operator (=). For example, to assign the value 25 to the variable "age", you can use the syntax: age = 25;
| 4. Can a variable's value be changed after it is declared in C programming? | |
Ans. Yes, a variable's value can be changed after it is declared in C programming. You can assign a new value to a variable using the assignment operator (=) at any point in the program's execution.
| 5. What are the rules for naming variables in C programming? | |
Ans. In C programming, the following rules apply for naming variables:
- Variable names can contain letters (both uppercase and lowercase), digits, and underscores.
- The first character of a variable name must be a letter or an underscore.
- Variable names are case-sensitive, so "age" and "Age" are considered different variables.
- Variable names cannot be reserved keywords in C programming, such as "int", "float", "char", etc.
- Variable names should be meaningful and descriptive to enhance code readability.
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Dec 23, 2024 Last updated |
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