Variables

                              VARIABLE


              A variable is a way of referring to a memory location

              used in a computer program. This memory location holds 
 
              values- perhaps numbers or text.

              Variable is divided into 2 types.

               >  Static variable.

               >  Random variable.
              
               Static variable :- It contains the fixed value.
             
               Random variable :-  Its value can be varies.

               Variable is may be name,age,color,single character,etc...

               variable should starts with character only.

               syntax:-  variablename = value;

                              a =10;

              Example:- enter 3 subjects marks.
                               its not a way to write syntax.

                                1sub =49;
                                2sub =80;
                                3sub =67;
                              its a way to write syntax.
                      
                               sub1 =49;
                               sub2 =80;
                               sub3 =67;