Variable

                     Variables are used for storing data in a program. Based on the data type of a variable, the compiler allocates memory and decides what can be stored in the allocated memory. The value of variable may vary during the program execution.

Declaring of a Variable:

                datatype    identifier;

                            (or)

                datatype    identifier-1, identifier-2, .................., identifier-n;

                Eg: 

                        int n;

                        char ch;

                        float ft;

                        double db;

                        int a, b, c, d;

                        char x, y, z;

Initialization of Variable:

                    At the time of declaring a variable, we can store some value into that variable is known as initialization.

Syntax:

                datatype    identifier=value;

Eg:

                int n=100;

                char ch='H';

                float ft=10.569;

                double db=123.618;

                int a=10, b=20, c=30;

                int x=100, y, z=200;

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