Answer / shashank and nishant

In call by reference the the object will get change.
In calle by value it won't.

call by reference passes the address of the argument into
the required subroutine, thenh when it is altered in the
subroutine, its altered value will overwrite the original
argument value.

call by value only passes the value to the subroutine(i.e.
the subfunction defined)and this does not overwrite the
argument value.

Answer / nirmalafredrick

You need to say simply
Call by value allows duplication
Call by referance No Duplication
May be if they ask for example you may say what shashank
had written

Answer / eric

Call by reference reduces memory copy operations

Answer / rishav

It copies the value of actual parameters into formal parameters.

The changes are not reflected back to the original value.

It creates its own copy of argument values and then uses them.

Passing by values is useful when the original values are not to be changed.

Answer / mukesh

In call by value method-The copy of variables are passed into the function and it does not overwrite the original values declared in main function. It consumes much space than call by reference method
In call by reference method- The address of variables are passed into the function and it will overwrite the original values declared in main function. It consumes less space the call by value method.

Answer / shivam sharma

when formal arguments are ordinary variables then it is called function call by passing value.
and when formal arguments are pointer variables then it is called function call by passing address.
when formal arguments are reference variable then it is called function call by passing reference.

most of the times people considers call by reference and call by address is same but it's not.it is unique in different context.

Answer / deepak gupta

call by refernce for retwrning more then one valve.

Answer / deepak gupta

for retwrning more then one value

Answer / bala

call by value ----- represent values
call by value ----- for represent the address

Answer / mohamed

In call by value the the object will get change.
In calle by reference it won't.

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