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To PERSIST the STATE of an OBJECT into any perminant STORAGE DEVICE.

To persist the state of an object into any perminant storage device.

No

No

No

No

1. A JDBC-ODBC BRIDGE
2. A native-API PARTLY Java technology-enabled DRIVER
3. A net-protocol fully Java technology-enabled driver
4. A native-protocol fully Java technology-enabled driver For more INFORMATION.

TWO different keys with the same hash VALUE. Two different ENTRIES will be kept in a single hash BUCKET to AVOID the collision.

Two different keys with the same hash value. Two different entries will be kept in a single hash bucket to avoid the collision.

FIXED PRIORITY SCHEDULING.

Fixed priority scheduling.

THREAD is a block of code which can EXECUTE concurrently with other THREADS in the JVM.

Thread is a block of code which can execute concurrently with other threads in the JVM.

HASHCODE VALUE for this OBJECT which is UNIQUE for EVERY object.

hashcode value for this object which is unique for every object.

RMI-IIOP

RMI-IIOP

RMI is a REMOTE method invocation. Using RMI, you can work with remote object. The FUNCTION calls are as though you are invoking a local variable. So it gives you a impression that you are WORKING really with a object that resides within your own JVM though it is somewhere.

RMI is a remote method invocation. Using RMI, you can work with remote object. The function calls are as though you are invoking a local variable. So it gives you a impression that you are working really with a object that resides within your own JVM though it is somewhere.

Abstract class defined with methods. Interface will declare only the methods. Abstract CLASSES are very much USEFUL when there is a some functionality across various classes. Interfaces are well suited for the classes which varies in functionality but with the same method SIGNATURES.

Abstract class defined with methods. Interface will declare only the methods. Abstract classes are very much useful when there is a some functionality across various classes. Interfaces are well suited for the classes which varies in functionality but with the same method signatures.

It is not an instantiable CLASS. It provides the concrete implementation for some/all the METHODS. So that they can reuse the concrete functionality by INHERITING the abstract class.

It is not an instantiable class. It provides the concrete implementation for some/all the methods. So that they can reuse the concrete functionality by inheriting the abstract class.

It MUST IMPLEMENT the Cloneable INTERFACE

It must implement the Cloneable interface

Comparable

Comparable

It LOADS the class into the CLASSLOADER. It returns the Class. USING that you can get the instance ( “class-instance”.newInstance() ).

It loads the class into the ClassLoader. It returns the Class. Using that you can get the instance ( “class-instance”.newInstance() ).

The basic service to MANAGE SET of JDBC drivers.

The basic service to manage set of JDBC drivers.

It is one of the design PATTERN. This falls in the creational pattern of the design pattern. There will be only one instance for that entire JVM. You can achieve this by having the PRIVATE constructor in the class.

For eg.,

PUBLIC class SINGLETON

{

private static final Singleton s = new Singleton();

private Singleton()

{

}

public static Singleton getInstance()

{

RETURN s;

}

// all non static methods …

}

It is one of the design pattern. This falls in the creational pattern of the design pattern. There will be only one instance for that entire JVM. You can achieve this by having the private constructor in the class.

For eg.,

public class Singleton

{

private static final Singleton s = new Singleton();

private Singleton()

{

}

public static Singleton getInstance()

{

return s;

}

// all non static methods …

}

CLONE, equals, WAIT, finalize, GETCLASS, hashCode, NOTIFY, notifyAll, toString

clone, equals, wait, finalize, getClass, hashCode, notify, notifyAll, toString

It is a special TYPE of COMPOSITION. If you EXPOSE all the methods of a COMPOSITE class and route the method CALL to the composite method through its reference, then it is called aggregation.

It is a special type of composition. If you expose all the methods of a composite class and route the method call to the composite method through its reference, then it is called aggregation.

If the methods of the inner CLASS can only be accessed VIA the INSTANCE of the inner class, then it is called inner class.>

If the methods of the inner class can only be accessed via the instance of the inner class, then it is called inner class.>

If all the METHODS of a INNER CLASS is STATIC then it is a NESTED class.

If all the methods of a inner class is static then it is a nested class.

You can ITERATOR BACK and FORTH.

You can iterator back and forth.

FINAL keyword denotes that it is the final IMPLEMENTATION for that METHOD or variable or class. You can’t OVERRIDE that method/variable/class any more.

final keyword denotes that it is the final implementation for that method or variable or class. You can’t override that method/variable/class any more.

Stub is a client side REPRESENTATION of the SERVER, which takes care of COMMUNICATING with the remote server. Skeleton is the server side representation. But that is no more in use… it is DEPRECATED long before in JDK.

Stub is a client side representation of the server, which takes care of communicating with the remote server. Skeleton is the server side representation. But that is no more in use… it is deprecated long before in JDK.