Which term means notes in code to explain?

Which term means notes in code to explain?

• A. Commenting
• B. Integrated development environment
• C. Nested iteration
• D. Random number

Answer: (A)

Notes written in code to explain what the program does are called comments. They let someone reading the code understand its purpose, how it works, or any important caveats without changing how the program runs. Most languages have specific markers to indicate a comment, such as // or # for a single line, and /* ... */ for a block of text in languages like C, Java, or JavaScript. The important point is that comments are ignored by the computer when the code runs, so they don’t affect the output but they’re invaluable for readability and maintenance. The other terms refer to different things. An integrated development environment is the editor and tools used to write and test code, not the notes inside the code. Nested iteration describes a loop inside another loop, a control structure used to repeat tasks in more complex patterns. A random number is a value generated by a function that produces unpredictable results, not explanatory notes in the code.

Notes written in code to explain what the program does are called comments. They let someone reading the code understand its purpose, how it works, or any important caveats without changing how the program runs. Most languages have specific markers to indicate a comment, such as // or # for a single line, and /* ... */ for a block of text in languages like C, Java, or JavaScript. The important point is that comments are ignored by the computer when the code runs, so they don’t affect the output but they’re invaluable for readability and maintenance.

The other terms refer to different things. An integrated development environment is the editor and tools used to write and test code, not the notes inside the code. Nested iteration describes a loop inside another loop, a control structure used to repeat tasks in more complex patterns. A random number is a value generated by a function that produces unpredictable results, not explanatory notes in the code.