Casting

[Abhi vijay]

Source:
K & B Book.

 class Redwood extends Tree {
public static void main(String[] args) {
new Redwood().go();
}
 
void go() {
 
 
go2(new Tree(), new Redwood());
go2((Redwood)new Tree(), new Redwood());// Line1
}
 
void go2(Tree t1, Redwood r1) {// line2
Redwood r2 = (Redwood)t1;
Tree t = (Tree)r1;
}
 
}
 
class Tree {
}   

Here in Line1 (Redwood)new Tree(), so the reference type of t1 in go2 method becomes Rosewood, or it remains the same Tree? Please explain what is happening in line1,2. I am getting confused

[Himanshu Gupta]

web page This is a recent post on the same question.