referencing class variable to a local variable
<p>why do some people make a new reference in method to a field variable?</p>

<pre><code>public class Foo {
    int mFoo[] = {1, 2, 3};

    void method() {
        int foo[] = mFoo; // WHY not just use mFoo?

        print(foo[0]); // WHY not just use mFoo?
    }
}
</code></pre>
