Question: Name different categories of constants in C language.
Answer
A constant is an identifier whose value cannot be changed throughout the execution of a program whereas the variable value keeps on changing. In C there are four basic types of constants. They are:
1. Integer constants
2. Floating point constants
3. Character constants
4. String constants
Example
Integer constant: 147
Floating point constants: 34.56
Character constants: 'A', '\r'
String constants: "A", "EFH"
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