The reserved word " this"

I understand that (this) is used to refer to the initializer
But i still don understand the logic of using "this" statement.....
Can someone explain?
Thank you,
Bryan Lim

> I guess I haven't run into this problem yet. Is this
like variable shadowing that we are talking about?
I guess I haven't seen an instance where the compiler
would redefine an instance variable with a local
variable.
I believe he's referring to a problem like this:
public class Foo {       
    int i;
    void bar() {
        int i = 5;
        // many lines of code follow...
        i = 3; // I think I'm changing the instance variable,
               // but I'm actually only changing the local...
}

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