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 Fold Paralysis. The vocal cords are two elastic bands of muscle tissue located in the voice box (larynx) directly above the windpipe (trachea). These cords allow you to speak because when air held in the lungs is released and passed through the closed vocal cords, it causes them to vibrate. When you are not speaking, the vocal cords remain apart so you can breathe. Vocal cord paralysis occurs when one or both of the vocal cords (vocal folds) do not open or close properly. The paralyzed cord or cords remain open, leaving the airway passage and the lungs unprotected. The condition makes it difficult to swallow or cough because food or liquids slip into the trachea and lungs.