Archive for October, 2011

One click JavaSource in Eclipse

Plugin to get the  all java source in Single Click:

1) Doc Jar Plugin :

Steps to get doc jar in eclipse:

Download the plugin in the site

Paste the plugin in the eclipse plugin folder

Restart the eclipse

To Check the details of any Java  class :

Right click and click the  DocJar in the menu item

2) Grep Code Plugin:

paste the URL in the Eclipse –> Help –> Install New Software


Grep code:

Doc Jar:


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Enum in Java


To Create Enum:

public enum Degree  {   BE, BCA, MBBS };


By default the first value is set to   0  ,

else If you set the first value as 5  then it will automatically assign second value = 6

How to get int value of enum:

ordinal() – It is used to get the int value of the enum type

Ex: int i =  Degree.BE.ordinal



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Threading in Java

Next upcoming post….

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For Beginners :

For Advanced User :

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–> extends

E- Error –> Throwable

R- RunTimeException (Unchecked Exception) –> Exception –> Throwable

C- Checked Exception

List of Exception in Java:

AbstractMethodError E java.lang
AccessControlException R This is an exception that is thrown whenever a reference is made to a non-existent ACL (Access Control List). notes.
AccessException C java.rmi Thrown by certain methods of the java.rmi.Naming class.
AclNotFoundException C Thrown whenever a reference is made to a non-existent ACL (Access Control List).
ActivateFailedException C java.rmi.activation thrown by the RMI runtime when activation fails during a remote call to an activatable object.
ActivationException C java.rmi.activation
AlreadyBoundException C javax.naming
ApplicationException C org.omg.CORBA.portable Used for reporting application level exceptions between ORBs and stubs
ArithmeticException R java.lang Most commonly a divide by zero. notes.
ArrayIndexOutOfBoundsException R java.lang Can be handled more generically with IndexOutOfBoundsException. notes.
ArrayStoreException R java.lang Thrown to indicate that an attempt has been made to store the wrong type of object into an array of objects. notes.
AttributeInUseException C
AttributeModificationException C
AuthenticationException C javax.naming
AuthenticationNotSupportedException C javax.naming
AWTError E java.awt
AWTError E java/awt
AWTException C java.awt
BadLocationException C javax.swing.text This exception is to report bad locations within a document model.
BatchUpdateException C java.sql
BindException C Signals that an error occurred while attempting to bind a socket to a local address and port
CannotProceedException C javax.naming
CannotRedoException R javax.swing.undo
CannotUndoException R javax.swing.undo
CertificateEncodingException C
CertificateException C
CertificateExpiredException C
CertificateNotYetValidException C
CertificateParsingException C
ChangedCharSetException C javax.swing.text
CharConversionException C
ClassCastException R java.lang notes.
ClassCircularityError E java.lang
ClassFormatError E java.lang notes.
ClassNotFoundException C java.lang notes.
CloneNotSupportedException C java.lang
CMMException R java.awt.color
CommunicationException C javax.naming
ConcurrentModificationException R java.util This exception may be thrown by methods that have detected concurrent modification of a backing object when such modification is not permissible, e. g. two threads modifying aHashMap simultaneously. notes.
ConfigurationException C javax.naming
ConnectException C java.rmi
ConnectIOException C java.rmi
ContextNotEmptyException C javax.naming
CRLException C CRL (Certificate Revocation List) Exception.
DataFormatException C
DigestException C
EmptyStackException R java.util Thrown by methods in the Stack class to indicate that the stack is empty. Does not refer to the system stack.
EOFException C notes.
Error E java.lang Catches any serious error such asOutOfMemoryError that you unlikely can recover from.
Exception C java.lang generic. Catches any specify Exception plus general Runtime exceptions, but not Errors.
ExceptionInInitializerError E java.lang notes.
ExceptionInInitializerError E java.lang
ExpandVetoException C javax.swing.tree
ExportException C java.rmi.server
FileNotFoundException C
FontFormatException C java.awt
GeneralSecurityException C
IllegalAccessError E java.lang notes.
IllegalAccessException C java.lang Thrown when an application tries to load in a class, but the currently executing method does not have access to the definition of the specified class, because the class is not public and in another package.
IllegalArgumentException R java.lang Most common exception to reject a bad parameter to a method.
IllegalComponentStateException R java.awt
IllegalMonitorStateException R java.lang
IllegalPathStateException R java.awt.geom
IllegalStateException R java.lang Signals that a method has been invoked at an illegal or inappropriate time.
IllegalThreadStateException R java.lang
ImagingOpException R java.awt.image
IncompatibleClassChangeError E java.lang notes.
IndexOutOfBoundsException R java.lang Similar toArrayIndexOutOfBoundsExceptionfor ArrayList.
IndirectionException R org.omg.CORBA.portable
InstantiationError E java.lang
InstantiationException C java.lang
InsufficientResourcesException C javax.naming
InternalError E java.lang
InterruptedException C java.lang Thrown when a thread is waiting, sleeping, or otherwise paused for a long time and another thread interrupts it using the interrupt method in class Thread.
InterruptedIOException C
InterruptedNamingException C javax.naming
IntrospectionException C java.beans
InvalidAlgorithmParameterException C This is a GeneralSecurityException. See IllegalArgumentException.
InvalidAttributeIdentifierException C
InvalidAttributesException C
InvalidAttributeValueException C
InvalidClassException C notes.
InvalidDnDOperationException R java.awt.dnd
InvalidKeyException C
InvalidKeySpecException C
InvalidMidiDataException C javax.sound.midi
InvalidNameException C javax.naming
InvalidObjectException C
InvalidParameterException R
InvalidParameterSpecException C
InvalidSearchControlsException C
InvalidSearchFilterException C
InvalidTransactionException C javax.transaction
InvocationTargetException C java.lang.reflect
IOException C
JarException C java.util.jar
KeyException C
KeyManagementException C
KeyStoreException C
LastOwnerException C
LdapReferralException C javax.naming.ldap
LimitExceededException C javax.naming
LineUnavailableException C javax.sound.sampled
LinkageError E java.lang
LinkException C javax.naming
LinkLoopException C javax.naming
MalformedLinkException C javax.naming
MalformedURLException C
MarshalException C java.rmi
MidiUnavailableException C javax.sound.midi
MimeTypeParseException C java.awt.datatransfer
MissingResourceException R java.util
NameAlreadyBoundException C javax.naming
NameNotFoundException C javax.naming
NamingException C javax.naming
NamingSecurityException C javax.naming
NegativeArraySizeException R java.lang
NoClassDefFoundError E java.lang notes.
NoInitialContextException C javax.naming
NoninvertibleTransformException C java.awt.geom
NoPermissionException C javax.naming
NoRouteToHostException C
NoSuchAlgorithmException C
NoSuchAttributeException C
NoSuchElementException R java.util
NoSuchFieldError E java.lang
NoSuchFieldException C java.lang
NoSuchMethodError E java.lang notes.
NoSuchMethodException C java.lang
NoSuchObjectException C java.rmi
NoSuchProviderException C notes.
NotActiveException C Thrown when serialization or deserialization is not active
NotBoundException C java.rmi
NotContextException C javax.naming
NotOwnerException C
NotSerializableException C notes.
NullPointerException R java.lang Actually a null reference exception. notes.
NumberFormatException R java.lang Commonly thrown when a String is converted to internal binary numeric format. notes.
ObjectStreamException C
OperationNotSupportedException C javax.naming
OptionalDataException C Unexpected data appeared in an ObjectInputStream trying to read an Object. Occurs when the stream contains primitive data instead of the object that is expected by readObject. The EOF flag in the exception is true indicating that no more primitive data is available. The count field contains the number of bytes available to read.
OutOfMemoryError E java.lang By the time this happens it is almost too late. gc has already done what it could. Possibly some process has just started gobbling RAM, or perhaps the problem you are trying to solve is just too big for the size of the allotted virtual ram. You can control that with the java.execommand line switches.
ParseException C java.text
PartialResultException C javax.naming
PolicyError E org.omg.CORBA
PrinterAbortException C java.awt.print
PrinterException C java.awt.print
PrinterIOException C java.awt.print
PrivilegedActionException C
ProfileDataException R java.awt.color
PropertyVetoException C java.beans
ProtocolException C
ProviderException R
RasterFormatException R java.awt.image
ReferralException C javax.naming
RemarshalException C org.omg.CORBA.portable
RemoteException C java.rmi
RMISecurityException C java.rmi
RuntimeException R java.lang Error that can occur in almost any code e.g.NullPointerException. Use this when to catch general errors when no specific exception is being thrown.
SchemaViolationException C
SecurityException R java.lang
ServerCloneException C java.rmi.server
ServerError E java.rmi
ServerException C java.rmi
ServerNotActiveException C java.rmi.server
ServerRuntimeException C java.rmi
ServiceUnavailableException C javax.naming
SignatureException C
SizeLimitExceededException C javax.naming
SkeletonMismatchException C java.rmi.server
SkeletonNotFoundException C java.rmi.server
SocketException C
SocketSecurityException C java.rmi.server
SQLException C java.sql
StackOverflowError E java.lang notes.
StreamCorruptedException C ObjectStream data are scrambled. notes.
StringIndexOutOfBoundsException R java.lang Can be handled more generically with IndexOutOfBoundsException. notes.
StubNotFoundException C java.rmi
SyncFailedException C
SystemException R org.omg.CORBA
TimeLimitExceededException C javax.naming
TooManyListenersException C java.util
TransactionRequiredException C javax.transaction
TransactionRolledbackException C javax.transaction
UndeclaredThrowableException R java.lang.reflect
UnexpectedException R java.rmi
UnknownError E java.lang
UnknownException R org.omg.CORBA.portable
UnknownGroupException C java.rmi.activation
UnknownHostException C java.rmi
UnknownHostException C
UnknownObjectException C java.rmi.activation
UnknownServiceException C
UnknownUserException C org.omg.CORBA
UnmarshalException C java.rmi notes.
UnrecoverableKeyException C
UnsatisfiedLinkError E java.lang notes.
UnsupportedAudioFileException C javax.sound.sampled
UnsupportedClassVersionError E java.lang notes.
UnsupportedDataTypeException C undocumented. notes.
UnsupportedEncodingException C
UnsupportedFlavorException C java.awt.datatransfer
UnsupportedLookAndFeelException C javax.swing
UnsupportedOperationException R java.lang Use for code not yet implemented, or that you deliberately did not implement.
UserException C org.omg.CORBA
UTFDataFormatException C
VerifyError E java.lang notes.
VirtualMachineError E java.lang
WriteAbortedException C
ZipException C notes.

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Color Code Link

Best site to find the color code for all colors

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