In Java, besides the native types bool, int, long, etc., everything is an Object. When you define a Object variable, it points to the object, to null, or in certain cases can be uninitialised. Both point to a String object, one with no characters (length=0), the other to the foo three characters. The uninitialised case is a special one. When you're defining a class property, java auto-initializes the variables, but if they are variables inside your method, they aren't. class Foo { private String s; // defaults null private int i; // default zero }.
VOCAL CORDS Defined for Kids. vocal cords. noun plural. Definition of vocal cords for Students. : a pair of folds of tissue that extend across the inside of the larynx and that produce the voice when air exhaled from the lungs causes them to tighten and vibrate.
vocal cords. plural noun. either of two pairs of mucomembranous folds in the larynx. The upper pair (false vocal cords) are not concerned with vocal production; the lower pair (true vocal cords or vocal folds) can be made to vibrate and produce sound when air from the lungs is forced over them.