Answer / nithya

value type variable :
If the valuetype variable data is copied to another
variable, its actual data is not effected.
eg., for valuetype variables are
char,boolean,structures,enumerations .
eg.
dim m.n as integer
m=100
n=200

reference type variable:
variable doesnt stores the actual data, instead it has a
pointer . that pointer will points to the actual data
location
eg., for reference type variabls are array,class .
eg.
dim a,b as integer
a=5
assume, a is in the memory locatyion of 1001.
that address value will be stored to the another variable
say b whose address is 1020

Answer / ramu

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