Separate HTML for Basic Foil 74 Determining and Testing Class of Object

Basic HTML version of Foils prepared May 12 1996

Foil 74 Determining and Testing Class of Object

From CRPC Lectures on Java Language Applets Graphics CRPC Annual Meeting Tutorial -- May 14,1996. by Geoffrey C. Fox

Suppose an object is called obj , then we get Class of obj by

Class itsclass = obj.getClass(); // and the name of this class by:

String name = itsclass.getName();

One can also use instanceof in following fashion

"foo" instanceof String // is evaluated to true but

mPoint pt = new mPoint(x,y);

pt instanceof String // is evaluated to false

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