Java.lang package

Java is using java.lang as the default package.All the basic functionality for writing a simple java program are there written in the form of classes and interfaces and also designed some of the possible and probable exception and error raised while compiling and executing programs. Here i am categorizing all the exception, error , abstract class , final classes, interfaces etc....

Classes in java.lang packages


List of Abstract Interfaces (1)

CharSequence

List of Abstract classes (5)

AbstractStringBuilder

ClassLoader

Enum

Number

Process

List of Final classes (18)

Boolean 

Byte

Character

Class

ConditionalSpecialCasing

Double

Float

Integer

Long

Math

ProcessBuilder

ProcessEnvironment

ProcessImpl

Short

String

StringBuilder

StringBuffer

System


List of Classes (18)

CharacterData00

CharacterData01

CharacterData02

CharacterData0E

CharacterDataLatin1

CharacterDataPrivateUse

CharacterDataUndefined

Error

Exception

Object

Runtime

SecurityManager

Shutdown

StringCoding

Thread

ThreadGroup

ThreadLocal

Throwable

List of Exception Classes (25)

ArithmeticException

ArrayIndexOutOfBoundsException

ArrayStoreException

ClassCastException

ClassNotFoundException

CloneNotSupportedException 

EnumConstantNotPresentException

IllegalAccessException

IllegalArgumentException

llegalMonitorStateException

IllegalStateException

IllegalThreadStateException

IndexOutOfBoundsException

InstantiationException

InterruptedException

NegativeArraySizeException

NoSuchFieldException

NoSuchMethodException

NullPointerException

NumberFormatException

RuntimeException

SecurityException

StringIndexOutOfBoundsException

TypeNotPresentException

UnsupportedOperationException


List of Error Classes (18)

AbstractMethodError

AssertionError

ClassCircularityError

ClassFormatError

ExceptionInInitializerError

IllegalAccessError

InstantiationError

InternalError

LinkageError

NoClassDefFoundError

NoSuchFieldError

NoSuchMethodError

StackOverflowError

UnknownError

UnsatisfiedLinkError

UnsupportedClassVersionError 

VirtualMachineError

VerifyError