Value type vs Reference type

Lets we have following declaration.

char c = ‘A’;

string s = “STR”;

Then values of variable c & s will get stored in memory, in following way…..

00001	A
00002	00003
00003	S
00004	T
00005	R

       Table: Memory Status

·        Definition 1: Data types, which are stores its value directly at their own memory location; those data types are called as “Value” type.

·        Definition 2: Data types, which are stores address (pointer/reference) of its value at their own memory location, those data types are called as “Reference” type.  

From above memory status we can do following statements

·        Statement 1: Address 00001 represent variable c & it containing value ‘A’.

                                 

·        Statement 2: Address 00002 represents variable s & it contains value 00003, which is nothing but starting address of value ‘STR’.

From Definition 1 & Statement 1 we would say that char is Value type

&

From Definition 2 & Statement 2 we would say that string is Reference type