TIOBE - Java Coding Standard

Rule: Controversial11

This rule is Obsolete
Synopsis:	If a field is only used by one method, consider making it a local variable
Language:	Java
Severity Level:	4
Category:	Controversial

Description:

A field that's only used by one method could perhaps be replaced by a local variable.

public class Foo {
    private int x;
    public void foo(int y) {
     x = y + 5;
     return x;
    }
}