Class JDK 1.6)

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public Class<Object> asSubclass (Class< U> clazz)

Casts this Class object to represent a subclass of the class represented by the specified class object.

public T cast (Object obj)

Casts an object to the class or interface represented by this Class object.

public boolean desiredAssertionStatus ()

Returns the assertion status that would be assigned to this class if it were to be initialized at the time this method is invoked.

pack-private Map<String, T> enumConstantDirectory ()

Returns a map from simple name to enum constant.

publicstatic Class<Object> forName (String className) throws ClassNotFoundException

Returns the Class object associated with the class or interface with the given string name.

Returns the Class object associated with the class or interface with the given string name. Invoking this method is equivalent to:

  Class.forName(className, true, currentLoader)

where currentLoader denotes the defining class loader of the current class.

For example, the following code fragment returns the runtime Class descriptor for the class named java.lang.Thread:

   Class t = Class.forName("java.lang.Thread")

A call to forName("X") causes the class named X to be initialized.
Returns: the Class object for the class with the specified name.
Parameters:
- className - the fully qualified name of the desired class.
Throws:
- LinkageError - if the linkage fails
- ExceptionInInitializerError - if the initialization provoked by this method fails
- ClassNotFoundException - if the class cannot be located

publicstatic Class<Object> forName (String name, boolean initialize, ClassLoader loader) throws ClassNotFoundException

Returns the Class object associated with the class or interface with the given string name, using the given class loader.

Returns the Class object associated with the class or interface with the given string name, using the given class loader. Given the fully qualified name for a class or interface (in the same format returned by getName) this method attempts to locate, load, and link the class or interface. The specified class loader is used to load the class or interface. If the parameter loader is null, the class is loaded through the bootstrap class loader. The class is initialized only if the initialize parameter is true and if it has not been initialized earlier.

If name denotes a primitive type or void, an attempt will be made to locate a user-defined class in the unnamed package whose name is name. Therefore, this method cannot be used to obtain any of the Class objects representing primitive types or void.

If name denotes an array class, the component type of the array class is loaded but not initialized.

For example, in an instance method the expression:

  Class.forName("Foo")

is equivalent to:

  Class.forName("Foo", true, this.getClass().getClassLoader())

Note that this method throws errors related to loading, linking or initializing as specified in Sections 12.2, 12.3 and 12.4 of The Java Language Specification. Note that this method does not check whether the requested class is accessible to its caller.

If the loader is null, and a security manager is present, and the caller's class loader is not null, then this method calls the security manager's checkPermission method with a RuntimePermission("getClassLoader") permission to ensure it's ok to access the bootstrap class loader.
Returns: class object representing the desired class
Parameters:
- name - fully qualified name of the desired class
- initialize - whether the class must be initialized
- loader - class loader from which the class must be loaded
Throws:
- LinkageError - if the linkage fails
- ExceptionInInitializerError - if the initialization provoked by this method fails
- ClassNotFoundException - if the class cannot be located by the specified class loader
Since: 1.2
See Also: Class.forName(String), ClassLoader,

public A getAnnotation (Class< A> annotationClass)

public Annotation getAnnotations () [Specified in AnnotatedElement]

pack-private sun.reflect.annotation.AnnotationType getAnnotationType ()

public String getCanonicalName ()

Returns the canonical name of the underlying class as defined by the Java Language Specification.

public Class<Object> getClasses ()

Returns an array containing Class objects representing all the public classes and interfaces that are members of the class represented by this Class object.

Returns an array containing Class objects representing all
the public classes and interfaces that are members of the class
represented by this Class object. This includes public
class and interface members inherited from superclasses and public class
and interface members declared by the class. This method returns an
array of length 0 if this Class object has no public member
classes or interfaces. This method also returns an array of length 0 if
this Class object represents a primitive type, an array
class, or void.
Returns: the array of Class objects representing the public members of this class
Throws:
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} method denies access to the classes within this class
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public ClassLoader getClassLoader ()

Returns the class loader for the class.

pack-privatenative ClassLoader getClassLoader0 ()

publicnative Class<Object> getComponentType ()

Returns the Class representing the component type of an array.

Returns the Class representing the component type of an
array. If this class does not represent an array class this method
returns null.
Returns: the Class representing the component type of this class if this class is an array
Since: JDK1.1
See Also: Array,

pack-privatenative sun.reflect.ConstantPool getConstantPool ()

public Constructor< T> getConstructor (Class<Object> parameterTypes) throws NoSuchMethodException SecurityException

Returns a Constructor object that reflects the specified public constructor of the class represented by this Class object.

Returns a Constructor object that reflects the specified public constructor of the class represented by this Class object. The parameterTypes parameter is an array of Class objects that identify the constructor's formal parameter types, in declared order. If this Class object represents an inner class declared in a non-static context, the formal parameter types include the explicit enclosing instance as the first parameter.

The constructor to reflect is the public constructor of the class represented by this Class object whose formal parameter types match those specified by parameterTypes.
Returns: the Constructor object of the public constructor that matches the specified parameterTypes
Parameters:
- parameterTypes - the parameter array
Throws:
- NoSuchMethodException - if a matching method is not found.
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the constructor
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public Constructor<Object> getConstructors () throws SecurityException

Returns an array containing Constructor objects reflecting all the public constructors of the class represented by this Class object.

Returns an array containing Constructor objects reflecting
all the public constructors of the class represented by this
Class object. An array of length 0 is returned if the
class has no public constructors, or if the class is an array class, or
if the class reflects a primitive type or void.

Note that while this method returns an array of Constructor<T> objects (that is an array of constructors from
this class), the return type of this method is Constructor<?>[] and not Constructor<T>[] as
might be expected. This less informative return type is
necessary since after being returned from this method, the
array could be modified to hold Constructor objects for
different classes, which would violate the type guarantees of
Constructor<T>[].
Returns: the array of Constructor objects representing the public constructors of this class
Throws:
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the constructors within this class
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public Annotation getDeclaredAnnotations () [Specified in AnnotatedElement]

public Class<Object> getDeclaredClasses () throws SecurityException

Returns an array of Class objects reflecting all the classes and interfaces declared as members of the class represented by this Class object.

Returns an array of Class objects reflecting all the
classes and interfaces declared as members of the class represented by
this Class object. This includes public, protected, default
(package) access, and private classes and interfaces declared by the
class, but excludes inherited classes and interfaces. This method
returns an array of length 0 if the class declares no classes or
interfaces as members, or if this Class object represents a
primitive type, an array class, or void.
Returns: the array of Class objects representing all the declared members of this class
Throws:
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared classes within this class
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public Constructor< T> getDeclaredConstructor (Class<Object> parameterTypes) throws NoSuchMethodException SecurityException

Returns a Constructor object that reflects the specified constructor of the class or interface represented by this Class object.

Returns a Constructor object that reflects the specified
constructor of the class or interface represented by this
Class object. The parameterTypes parameter is
an array of Class objects that identify the constructor's
formal parameter types, in declared order.

If this Class object represents an inner class
declared in a non-static context, the formal parameter types
include the explicit enclosing instance as the first parameter.
Returns: The Constructor object for the constructor with the specified parameter list
Parameters:
- parameterTypes - the parameter array
Throws:
- NoSuchMethodException - if a matching method is not found.
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared constructor
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public Constructor<Object> getDeclaredConstructors () throws SecurityException

Returns an array of Constructor objects reflecting all the constructors declared by the class represented by this Class object.

Returns an array of Constructor objects reflecting all the constructors declared by the class represented by this Class object. These are public, protected, default (package) access, and private constructors. The elements in the array returned are not sorted and are not in any particular order. If the class has a default constructor, it is included in the returned array. This method returns an array of length 0 if this Class object represents an interface, a primitive type, an array class, or void.

See The Java Language Specification, section 8.2.
Returns: the array of Constructor objects representing all the declared constructors of this class
Throws:
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared constructors within this class
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public Field getDeclaredField (String name) throws NoSuchFieldException SecurityException

Returns a Field object that reflects the specified declared field of the class or interface represented by this Class object.

Returns a Field object that reflects the specified declared
field of the class or interface represented by this Class
object. The name parameter is a String that
specifies the simple name of the desired field. Note that this method
will not reflect the length field of an array class.
Returns: the Field object for the specified field in this class
Parameters:
- name - the name of the field
Throws:
- NoSuchFieldException - if a field with the specified name is not found.
- NullPointerException - if name is null
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared field
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public Field getDeclaredFields () throws SecurityException

Returns an array of Field objects reflecting all the fields declared by the class or interface represented by this Class object.

Returns an array of Field objects reflecting all the fields declared by the class or interface represented by this Class object. This includes public, protected, default (package) access, and private fields, but excludes inherited fields. The elements in the array returned are not sorted and are not in any particular order. This method returns an array of length 0 if the class or interface declares no fields, or if this Class object represents a primitive type, an array class, or void.

See The Java Language Specification, sections 8.2 and 8.3.
Returns: the array of Field objects representing all the declared fields of this class
Throws:
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared fields within this class
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public Method getDeclaredMethod (String name, Class<Object> parameterTypes) throws NoSuchMethodException SecurityException

Returns a Method object that reflects the specified declared method of the class or interface represented by this Class object.

Returns a Method object that reflects the specified
declared method of the class or interface represented by this
Class object. The name parameter is a
String that specifies the simple name of the desired
method, and the parameterTypes parameter is an array of
Class objects that identify the method's formal parameter
types, in declared order. If more than one method with the same
parameter types is declared in a class, and one of these methods has a
return type that is more specific than any of the others, that method is
returned; otherwise one of the methods is chosen arbitrarily. If the
name is "<init>"or "<clinit>" a NoSuchMethodException
is raised.
Returns: the Method object for the method of this class matching the specified name and parameters
Parameters:
- name - the name of the method
- parameterTypes - the parameter array
Throws:
- NoSuchMethodException - if a matching method is not found.
- NullPointerException - if name is null
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared method
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public Method getDeclaredMethods () throws SecurityException

Returns an array of Method objects reflecting all the methods declared by the class or interface represented by this Class object.

Returns an array of Method objects reflecting all the methods declared by the class or interface represented by this Class object. This includes public, protected, default (package) access, and private methods, but excludes inherited methods. The elements in the array returned are not sorted and are not in any particular order. This method returns an array of length 0 if the class or interface declares no methods, or if this Class object represents a primitive type, an array class, or void. The class initialization method <clinit> is not included in the returned array. If the class declares multiple public member methods with the same parameter types, they are all included in the returned array.

See The Java Language Specification, section 8.2.
Returns: the array of Method objects representing all the declared methods of this class
Throws:
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared methods within this class
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

publicnative Class<Object> getDeclaringClass ()

If the class or interface represented by this Class object is a member of another class, returns the Class object representing the class in which it was declared.

If the class or interface represented by this Class object
is a member of another class, returns the Class object
representing the class in which it was declared. This method returns
null if this class or interface is not a member of any other class. If
this Class object represents an array class, a primitive
type, or void,then this method returns null.
Returns: the declaring class for this class
Since: JDK1.1

public Class<Object> getEnclosingClass ()

Returns the immediately enclosing class of the underlying class.

public Constructor<Object> getEnclosingConstructor ()

If this Class object represents a local or anonymous class within a constructor, returns a Constructor object representing the immediately enclosing constructor of the underlying class.

public Method getEnclosingMethod ()

If this Class object represents a local or anonymous class within a method, returns a Method object representing the immediately enclosing method of the underlying class.

public T getEnumConstants ()

Returns the elements of this enum class or null if this Class object does not represent an enum type.

pack-private T getEnumConstantsShared ()

Returns the elements of this enum class or null if this Class object does not represent an enum type; identical to getEnumConstantsShared except that the result is uncloned, cached, and shared by all callers.

public Field getField (String name) throws NoSuchFieldException SecurityException

Returns a Field object that reflects the specified public member field of the class or interface represented by this Class object.

Returns a Field object that reflects the specified public member field of the class or interface represented by this Class object. The name parameter is a String specifying the simple name of the desired field.

The field to be reflected is determined by the algorithm that follows. Let C be the class represented by this object:

If C declares a public field with the name specified, that is the field to be reflected.
If no field was found in step 1 above, this algorithm is applied recursively to each direct superinterface of C. The direct superinterfaces are searched in the order they were declared.
If no field was found in steps 1 and 2 above, and C has a superclass S, then this algorithm is invoked recursively upon S. If C has no superclass, then a NoSuchFieldException is thrown.

See The Java Language Specification, sections 8.2 and 8.3.
Returns: the Field object of this class specified by name
Parameters:
- name - the field name
Throws:
- NoSuchFieldException - if a field with the specified name is not found.
- NullPointerException - if name is null
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the field
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public Field getFields () throws SecurityException

Returns an array containing Field objects reflecting all the accessible public fields of the class or interface represented by this Class object.

Returns an array containing Field objects reflecting all the accessible public fields of the class or interface represented by this Class object. The elements in the array returned are not sorted and are not in any particular order. This method returns an array of length 0 if the class or interface has no accessible public fields, or if it represents an array class, a primitive type, or void.

Specifically, if this Class object represents a class, this method returns the public fields of this class and of all its superclasses. If this Class object represents an interface, this method returns the fields of this interface and of all its superinterfaces.

The implicit length field for array class is not reflected by this method. User code should use the methods of class Array to manipulate arrays.

See The Java Language Specification, sections 8.2 and 8.3.
Returns: the array of Field objects representing the public fields
Throws:
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the fields within this class
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public Type getGenericInterfaces ()

Returns the Types representing the interfaces directly implemented by the class or interface represented by this object.

If a superinterface is a parameterized type, the Type object returned for it must accurately reflect the actual type parameters used in the source code. The parameterized type representing each superinterface is created if it had not been created before. See the declaration of ParameterizedType for the semantics of the creation process for parameterized types.

If this object represents a class, the return value is an array containing objects representing all interfaces implemented by the class. The order of the interface objects in the array corresponds to the order of the interface names in the implements clause of the declaration of the class represented by this object. In the case of an array class, the interfaces Cloneable and Serializable are returned in that order.

If this object represents an interface, the array contains objects representing all interfaces directly extended by the interface. The order of the interface objects in the array corresponds to the order of the interface names in the extends clause of the declaration of the interface represented by this object.

If this object represents a class or interface that implements no interfaces, the method returns an array of length 0.

If this object represents a primitive type or void, the method returns an array of length 0.
Returns: an array of interfaces implemented by this class
Throws:
- GenericSignatureFormatError - if the generic class signature does not conform to the format specified in the Java Virtual Machine Specification, 3rd edition
- TypeNotPresentException - if any of the generic superinterfaces refers to a non-existent type declaration
- MalformedParameterizedTypeException - if any of the generic superinterfaces refer to a parameterized type that cannot be instantiated for any reason
Since: 1.5

public Type getGenericSuperclass ()

Returns the Type representing the direct superclass of the entity (class, interface, primitive type or void) represented by this Class.

publicnative Class<Object> getInterfaces ()

Determines the interfaces implemented by the class or interface represented by this object.

If this object represents a class, the return value is an array containing objects representing all interfaces implemented by the class. The order of the interface objects in the array corresponds to the order of the interface names in the implements clause of the declaration of the class represented by this object. For example, given the declaration:

 class Shimmer implements FloorWax, DessertTopping { ... }

suppose the value of s is an instance of Shimmer; the value of the expression:

 s.getClass().getInterfaces()[0]

is the Class object that represents interface FloorWax; and the value of:

 s.getClass().getInterfaces()[1]

is the Class object that represents interface DessertTopping.

If this object represents an interface, the array contains objects representing all interfaces extended by the interface. The order of the interface objects in the array corresponds to the order of the interface names in the extends clause of the declaration of the interface represented by this object.

If this object represents a class or interface that implements no interfaces, the method returns an array of length 0.

If this object represents a primitive type or void, the method returns an array of length 0.
Returns: an array of interfaces implemented by this class.

public Method getMethod (String name, Class<Object> parameterTypes) throws NoSuchMethodException SecurityException

Returns a Method object that reflects the specified public member method of the class or interface represented by this Class object.

Returns a Method object that reflects the specified public member method of the class or interface represented by this Class object. The name parameter is a String specifying the simple name of the desired method. The parameterTypes parameter is an array of Class objects that identify the method's formal parameter types, in declared order. If parameterTypes is null, it is treated as if it were an empty array.

If the name is "<init>;"or "<clinit>" a NoSuchMethodException is raised. Otherwise, the method to be reflected is determined by the algorithm that follows. Let C be the class represented by this object:

C is searched for any matching methods. If no matching method is found, the algorithm of step 1 is invoked recursively on the superclass of C.
If no method was found in step 1 above, the superinterfaces of C are searched for a matching method. If any such method is found, it is reflected.

To find a matching method in a class C: If C declares exactly one public method with the specified name and exactly the same formal parameter types, that is the method reflected. If more than one such method is found in C, and one of these methods has a return type that is more specific than any of the others, that method is reflected; otherwise one of the methods is chosen arbitrarily.

Note that there may be more than one matching method in a class because while the Java language forbids a class to declare multiple methods with the same signature but different return types, the Java virtual machine does not. This increased flexibility in the virtual machine can be used to implement various language features. For example, covariant returns can be implemented with bridge methods; the bridge method and the method being overridden would have the same signature but different return types.

See The Java Language Specification, sections 8.2 and 8.4.
Returns: the Method object that matches the specified name and parameterTypes
Parameters:
- name - the name of the method
- parameterTypes - the list of parameters
Throws:
- NoSuchMethodException - if a matching method is not found or if the name is "<init>"or "<clinit>".
- NullPointerException - if name is null
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the method
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

public Method getMethods () throws SecurityException

Returns an array containing Method objects reflecting all the public member methods of the class or interface represented by this Class object, including those declared by the class or interface and those inherited from superclasses and superinterfaces.

Returns an array containing Method objects reflecting all the public member methods of the class or interface represented by this Class object, including those declared by the class or interface and those inherited from superclasses and superinterfaces. Array classes return all the (public) member methods inherited from the Object class. The elements in the array returned are not sorted and are not in any particular order. This method returns an array of length 0 if this Class object represents a class or interface that has no public member methods, or if this Class object represents a primitive type or void.

The class initialization method <clinit> is not included in the returned array. If the class declares multiple public member methods with the same parameter types, they are all included in the returned array.

See The Java Language Specification, sections 8.2 and 8.4.
Returns: the array of Method objects representing the public methods of this class
Throws:
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the methods within this class
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

Since: JDK1.1

publicnative int getModifiers ()

Returns the Java language modifiers for this class or interface, encoded in an integer.

Returns the Java language modifiers for this class or interface, encoded in an integer. The modifiers consist of the Java Virtual Machine's constants for public, protected, private, final, static, abstract and interface; they should be decoded using the methods of class Modifier.

If the underlying class is an array class, then its public, private and protected modifiers are the same as those of its component type. If this Class represents a primitive type or void, its public modifier is always true, and its protected and private modifiers are always false. If this object represents an array class, a primitive type or void, then its final modifier is always true and its interface modifier is always false. The values of its other modifiers are not determined by this specification.

The modifier encodings are defined in The Java Virtual Machine Specification, table 4.1.
Returns: the int representing the modifiers for this class
Since: JDK1.1
See Also: Modifier,

public String getName ()

Returns the name of the entity (class, interface, array class, primitive type, or void) represented by this Class object, as a String.

Element Type		Encoding
boolean		Z
byte		B
char		C
class or interface		Lclassname;
double		D
float		F
int		I
long		J
short		S

public Package getPackage ()

Gets the package for this class.

pack-privatestaticnative Class getPrimitiveClass (String name)

public ProtectionDomain getProtectionDomain ()

Returns the ProtectionDomain of this class.

Returns the ProtectionDomain of this class. If there is a
security manager installed, this method first calls the security
manager's checkPermission method with a
RuntimePermission("getProtectionDomain") permission to
ensure it's ok to get the
ProtectionDomain.
Returns: the ProtectionDomain of this class
Throws:
- SecurityException - if a security manager exists and its checkPermission method doesn't allow getting the ProtectionDomain.
Since: 1.2
See Also: ProtectionDomain, SecurityManager.checkPermission(java.security.Permission), RuntimePermission,

public URL getResource (String name)

Finds a resource with a given name.

public InputStream getResourceAsStream (String name)

Finds a resource with a given name.

publicnative Object getSigners ()

Gets the signers of this class.

public String getSimpleName ()

Returns the simple name of the underlying class as given in the source code.

publicnative Class<Object> getSuperclass ()

Returns the Class representing the superclass of the entity (class, interface, primitive type or void) represented by this Class.

Returns the Class representing the superclass of the entity
(class, interface, primitive type or void) represented by this
Class. If this Class represents either the
Object class, an interface, a primitive type, or void, then
null is returned. If this object represents an array class then the
Class object representing the Object class is
returned.
Returns: the superclass of the class represented by this object.

public TypeVariable<Class< T>> getTypeParameters () [Specified in GenericDeclaration]

Returns an array of TypeVariable objects that represent the type variables declared by the generic declaration represented by this GenericDeclaration object, in declaration order.

public boolean isAnnotation ()

Returns true if this Class object represents an annotation type.

public boolean isAnnotationPresent (Class<Annotation> annotationClass) [Specified in AnnotatedElement]

public boolean isAnonymousClass ()

Returns true if and only if the underlying class is an anonymous class.

publicnative boolean isArray ()

Determines if this Class object represents an array class.

Determines if this Class object represents an array class.
Returns: true if this object represents an array class; false otherwise.
Since: JDK1.1

publicnative boolean isAssignableFrom (Class<Object> cls)

Determines if the class or interface represented by this Class object is either the same as, or is a superclass or superinterface of, the class or interface represented by the specified Class parameter.

Determines if the class or interface represented by this Class object is either the same as, or is a superclass or superinterface of, the class or interface represented by the specified Class parameter. It returns true if so; otherwise it returns false. If this Class object represents a primitive type, this method returns true if the specified Class parameter is exactly this Class object; otherwise it returns false.

Specifically, this method tests whether the type represented by the specified Class parameter can be converted to the type represented by this Class object via an identity conversion or via a widening reference conversion. See The Java Language Specification, sections 5.1.1 and 5.1.4 , for details.
Returns: the boolean value indicating whether objects of the type cls can be assigned to objects of this class
Parameters:
- cls - the Class object to be checked
Throws:
- NullPointerException - if the specified Class parameter is null.
Since: JDK1.1

public boolean isEnum ()

Returns true if and only if this class was declared as an enum in the source code.

publicnative boolean isInstance (Object obj)

Determines if the specified Object is assignment-compatible with the object represented by this Class.

Determines if the specified Object is assignment-compatible with the object represented by this Class. This method is the dynamic equivalent of the Java language instanceof operator. The method returns true if the specified Object argument is non-null and can be cast to the reference type represented by this Class object without raising a ClassCastException. It returns false otherwise.

Specifically, if this Class object represents a declared class, this method returns true if the specified Object argument is an instance of the represented class (or of any of its subclasses); it returns false otherwise. If this Class object represents an array class, this method returns true if the specified Object argument can be converted to an object of the array class by an identity conversion or by a widening reference conversion; it returns false otherwise. If this Class object represents an interface, this method returns true if the class or any superclass of the specified Object argument implements this interface; it returns false otherwise. If this Class object represents a primitive type, this method returns false.
Returns: true if obj is an instance of this class
Parameters:
- obj - the object to check
Since: JDK1.1

publicnative boolean isInterface ()

Determines if the specified Class object represents an interface type.

Determines if the specified Class object represents an
interface type.
Returns: true if this object represents an interface; false otherwise.

public boolean isLocalClass ()

Returns true if and only if the underlying class is a local class.

public boolean isMemberClass ()

Returns true if and only if the underlying class is a member class.

publicnative boolean isPrimitive ()

Determines if the specified Class object represents a primitive type.

There are nine predefined Class objects to represent the eight primitive types and void. These are created by the Java Virtual Machine, and have the same names as the primitive types that they represent, namely boolean, byte, char, short, int, long, float, and double.

These objects may only be accessed via the following public static final variables, and are the only Class objects for which this method returns true.
Returns: true if and only if this class represents a primitive type
Since: JDK1.1
See Also: Boolean.TYPE, Character.TYPE, Byte.TYPE, Short.TYPE, Integer.TYPE, Long.TYPE, Float.TYPE, Double.TYPE, Void.TYPE,

public boolean isSynthetic ()

Returns true if this class is a synthetic class; returns false otherwise.

public T newInstance () throws InstantiationException IllegalAccessException

Creates a new instance of the class represented by this Class object.

Creates a new instance of the class represented by this Class object. The class is instantiated as if by a new expression with an empty argument list. The class is initialized if it has not already been initialized.

Note that this method propagates any exception thrown by the nullary constructor, including a checked exception. Use of this method effectively bypasses the compile-time exception checking that would otherwise be performed by the compiler. The Constructor.newInstance method avoids this problem by wrapping any exception thrown by the constructor in a (checked) InvocationTargetException.
Returns: a newly allocated instance of the class represented by this object.
Throws:
- IllegalAccessException - if the class or its nullary constructor is not accessible.
- InstantiationException - if this Class represents an abstract class, an interface, an array class, a primitive type, or void; or if the class has no nullary constructor; or if the instantiation fails for some other reason.
- ExceptionInInitializerError - if the initialization provoked by this method fails.
- SecurityException - If a security manager, s, is present and any of the following conditions is met:

invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies creation of new instances of this class
the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

pack-private void setAnnotationType (sun.reflect.annotation.AnnotationType type)

pack-privatenative void setProtectionDomain0 (ProtectionDomain pd)

Set the ProtectionDomain for this class.

pack-privatenative void setSigners (Object signers)

Set the signers of this class.

public String toString ()

Converts the object to a string.

Converts the object to a string. The string representation is the
string "class" or "interface", followed by a space, and then by the
fully qualified name of the class in the format returned by
getName. If this Class object represents a
primitive type, this method returns the name of the primitive type. If
this Class object represents void this method returns
"void".
Returns: a string representation of this class object.