KwickClips C · 40 sec · free
What happens if you assign to a const?
Short answer. A compile error: read-only variable.
When do you set a const value?
Once, when you declare it.
Remember
| const = read only |
| Set it once, when declared |
| Change it: compile error |
Can you lock a variable so nobody changes it? Yes. Const makes a variable read only. Seats is seventy two. Changing it to eighty gives a compile error. Const means read only. Set it once. Changing it is an error.
This clip is from the full lesson: C Tokens, Data Types, Variables and Constants — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: GSEB Std 10 Computer Studies, Programming All levels C, Programming All levels C, Programming All levels C
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