Package java.lang

Interface Summary

Cloneable	An interface indicating that this object may be copied or cloned.
Runnable	This interface is designed to provide a common protocol for Objects that wish to execute code while they are active.

Class Summary

Boolean	The Boolean class provides an object wrapper for Boolean data values, and serves as a place for boolean-oriented operations.
Character	The Character class provides an object wrapper for Character data values and serves as a place for character-oriented operations.
Class	Class objects contain runtime representations of classes.
ClassLoader	ClassLoader is an abstract Class that can be used to define a policy for loading Java classes into the runtime environment.
Compiler
Double	The Double class provides an object wrapper for Double data values and serves as a place for double-oriented operations.
Float	The Float class provides an object wrapper for Float data values, and serves as a place for float-oriented operations.
Integer	The Integer class is a wrapper for integer values.
Long	The Long class provides an object wrapper for Long data values and serves as a place for long-oriented operations.
Math	The standard Math library.
Number	Number is an abstract superclass for numeric scalar types.
Object	The root of the Class hierarchy.
Process	An instance of class Process is returned by variants of the exec () method in class System.
Runtime
SecurityManager	An abstract class that can be subclassed to implement a security policy.
String	A general class of objects to represent character Strings.
StringBuffer	This Class is a growable buffer for characters.
System	This Class provides a system-independent interface to system functionality.
Thread	A Thread is a single sequential flow of control within a process.
ThreadGroup	A group of Threads.
Throwable	An object signalling that an exceptional condition has occurred.

Exception Summary

ArithmeticException	Signals that an exceptional arithmetic condition has occurred.
ArrayIndexOutOfBoundsException	Signals that an invalid array index has been used.
ArrayStoreException	An attempt has been made to store the wrong type of Object to an array.
ClassCastException	Signals that an invalid cast has occurred.
ClassNotFoundException	Signals that a class could not be found.
CloneNotSupportedException	Signals that an attempt has been made to clone an object that does not want to be cloned.
Exception	Exception are a form of Throwable that normal programs may wish to try and catch.
IllegalAccessException	Signals that a particular method could not be found.
IllegalArgumentException	Signals that an illegal argument exception has occurred.
IllegalMonitorStateException	Signals that a monitor operation has been attempted when the monitor is in an invalid state.
IllegalThreadStateException	Exception indicating that a thread is not in the proper state for the requested operation.
IndexOutOfBoundsException	Signals that an index of some sort is out of bounds.
InstantiationException	Signals that an attempt has been made to instantiate an abstract class or an interface.
InterruptedException	An exception indicated that some thread has interrupted this thread.
NegativeArraySizeException	Signals that an attempt has been made to create an array with negative size.
NoSuchMethodException	Signals that a particular method could not be found.
NullPointerException	Signals the illegal use of a null pointer.
NumberFormatException	Signals that an invalid number format has occurred.
RuntimeException	An exception that can reasonably occur during the execution of a Java program by the Virtual machine.
SecurityException	Signals that a security exception has occurred.
StringIndexOutOfBoundsException	Signals that a String index is out of range.

Error Summary

AbstractMethodError	Signals an attempt to call an abstract method.
ClassCircularityError	Signals that a circularity has been detected when initializing a class.
ClassFormatError	Signals an invalid file format has occurred.
Error	Error is a subtype of Throwable for abnormal events that should not occur.
IllegalAccessError	Signals that an illegal access exception has occurred.
IncompatibleClassChangeError	Signals that an incompatible class change has occurred.
InstantiationError	Signals that the interpreter has tried to instantiate an abstract class or an interface.
InternalError	Signals that an internal error has occurred.
LinkageError	LinkageError and its subclasses indicate that a class has some dependency on another class; however the latter class has incompatibly changed after the compilation of the former class.
NoClassDefFoundError	Signals that a class could not be found.
NoSuchFieldError	Signals that a particular field could not be found.
NoSuchMethodError	Signals that a particular method could not be found.
OutOfMemoryError	Signals that you are out of memory.
StackOverflowError	Signals that a stack overflow has occurred.
ThreadDeath	An instance of ThreadDeath is thrown in the victim thread when thread.stop() is called.
UnknownError	Signals that an unknown but serious exception has occurred.
UnsatisfiedLinkError	Signals an unsatisfied link.
VerifyError	Signals that a Verification Error occured.
VirtualMachineError	A VirtualMachineError indicates that the virtual machine is broken or has run out of resources.