Constants in C
Constants in C
Constants in C
Constant:
Constant is an identifier whose value can not be changed.Example:
int x=10;
here
10 is a constant
x is variable
int is a datatype
In java language these constants are classified into following types
1.Numerical constants
2.Character constants
Numerical Constants:
Numerical means numbers .these are classified into 2 types1.Integer constants
2.Real constants
Integer Constants:
Integer constants menas + or - numbers. Example:int x=10;
int y=-10
Real Constants:
Real constants means floating values or decimal values. Example: float x=10.0;Character Constants:
These are classified into following types1.Single character constant
2.String character constant
Single Character Constant:
If any character or symbol or number enclosed with single quotation.Example:
char x='a';
char x='2';
char x='@';
String Character Constant:
Group of characters or symbols or numbers enclosed with double quotation.Example:
char s1[20]="abc";
char s2[20]="@##$";
char s3[20]="123";