referencing class variable to a local variable
why do some people make a new reference in method to a field variable? 
    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?
	}
    }
referencing class variable to a local variable
===

why do some people make a new reference in method to a field variable? 
    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?
	}
    }