Objects instance variables value

[Akshay Reddy]

Echo e1=new Echo();
Echo e2=e1; //or what if 
Echo e2=new Echo(); 

what is the difference between line 2 and line 3,
how does the values of e1.count and e2.count read for line 2 and line3
(say)

int x=0;
while(x>4)
{
       e1.count=e1.count + 1;
       e2.count=e2.count+e1.count;
       x=x+1;
}

[Henry Wong]

what is the difference between line 2 and line 3,

In line 2, you are declaring a reference, and initializing it to the same object that is referenced by another reference.

In line 3, you are declaring a reference, and initializing it to a new object.

Henry

[Akshay Reddy]

you mean in line 2 e1 and e2 refer to the same object and in line 3 e2 is refering to a different object ...

[David Newton]

Yes.

Your while loop body will never execute, btw.

[Akshay Reddy]

i am sorry x<4 .