Question

4. is a value that does not change during the execution of a program.

5. The way which a particular statement should be written is called​

Answer 1

Answer:

The entity whose value does not change during program execution are called 'constants'. The Opposites are called 'variables', there value changes during program execution.

Answer 2

Answer:

Constant is a value that does not change during the execution of a program.

The way in which a particular statement should be written is called​ Syntax.

Explanation:

Constants

Constants are those identifiers in a program whose values remain unchanged during the execution of the whole program. Different programming language comes with different type of constant declaration.

In C language, we use a const keyword to create a constant.

Now you might think, why do we need to use a constant in our program?

Well, the constant is very helpful when we want to preserve a value. Like the value of PI is a constant. No matter, what's the calculation, it should remain unchanged. Similarly, some other crucial values can be specified as contants.

Syntax

The syntax is the grammatical rules that are obeyed by the programmer in order to write the correct code.

Each language follows its own special syntax. If you don't follow the syntax of the language then you will get syntax errors in your program and your code will not be executed.

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