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 

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