Answer Posted / sailendra.n.jena

primitive datatype are pass this way
class A
{
int x=7;
void disp(int z)
{
System.out.println(z);
}
}
class Test
{
public static void main(String args[])
{
int x=7;
A a=new A();
a.disp(x);
}
when u pass the primtive reference to this method only
address will transfer to the parameter which i have given
to the void disp(int z).After passing the reference
variable the other variable will pointing to that object &
collect the value of that object.

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