Question

I am using Java and have various objects that I make a list of like this:

objx   o1;
objx   o2;
objx   o3;

objx olist [] = { o1, o2, o3 };

now I want to assign other objects to the original objects o1-o3 but using the list.

Something like:

olist[0] = onew;

But in this case only the list gets changed, not the original object o1. How can I do this in Java ?

Answer 1

You can’t. However you could just store the array and then you would be able to change the object referenced at each location of the array.

E.g.

objx olist[] = new objx[ 3 ];

olist[ 0 ] = new objx( );
olist[ 1 ] = new objx( );
olist[ 2 ] = new objx( );

Then later you could change any of the objects referenced simply by indexing the array:

...

olist[ 1 ] = onew;