Name
Class
Synopsis
This class contains information representing a Java class or
interface. Only one instance of this object exists for each class loaded
within the Java virtual machine, no matter how many instances of that class
are created. The Class object for a class can be obtained
by using the getClass() method of any instance of that
class, or by calling the static Class
forName() method and supplying the fully-qualified class
name. For example, the expression
Class.forName("java.lang.Class") would return a
Class object for Class itself.
A Class object can be used to discover various attributes
of a class. The getName() method returns the
fully-qualified name of the class (e.g., java.lang.Class).
The isArray() method returns true if
the class represents an array, such as the one returned by the expression
new Object[0].getClass(). The
isInterface() returns true if the
Class object to which it is applied represents an interface.
The isAssignableFrom() and isInstance()
methods can be used to determine the relationship between one class or
interface and another. The isInstance() method returns
true if the object passed as its argument is of the same
class as the Class object, or an instance of a subclass.
If the Class object represents an interface, then the object
passed as the argument to isInstance() must implement that interface
or one of its subinterfaces.
The isAssignableFrom() method also takes a
Class object as its argument and returns
true if that object could be ...
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