When the applet class file is not in the same directory 
codebase is used.

it's an built it procedure in java which takes place as we 
are finished wid our programs,so as to nullify the already 
existing objects in the file.it's as an desturctor in c++.

1) it is a automatic memory management utility run by JVM. 
2) the JVM cleaning the objects from the memory which are 
no longer being referenced.
3) the object that is not instantiate or containl null is 
also applicable for garbage collection.
3) explicitly running garbage collector is very expensive.
4) to run the garbage collect call the static method of 
System class e.g. System.gc();

Automatically deletes unused memory

JVM Automatically reclaims the memory used by an object.When
no variable is referred to that object.

Syntax for throw is:
throw throwableinstance;
Here the throwableinstance must be an object of type 
Throwable or sub-class of Throwable.Simple types such as 
int or char as well as non-Throwable types such as String 
or object can't be assigned to throw.

checked exceptions

wrapper classes allow primitive data types to be accessed 
as objects.Once assigned a value the value of wrapper 
classes can't be changed.

wreapper classes will allow the primitive types to act like
objects

Wrapper class : A class to enclosed(wrapped) the primitive 
data type.

eg: Integer - it wrapp the int primitive data type.
     Character - it wrap the chat data type.

       int a=10;
	Integer i=new Integer(a);  

Java Wrapper class:
      
Integer,Byte,Short,Character,Boolean,Long,Float,Double.

The wrapper classes can take constructors of either the 
type they are designed to wrap or of a String that can be 
converted to that type. Thus the Integer class can take a 
number that could be contained by an int, but an error will 
occur if you try to pass a number with a floating point 
component. Remember that the wrapper classes are just that 
classes, they are not primitives and instances of the 
wrappers can only be manipulated in the same way as any 
class. You may get questions on the exam with code that 
uses standard math operations to manipulate instances of 
wrappers. You can of course use the + operator where it 
would implicitly call the toString method, but as soon as 
you see the - * or % operator, beware.

wrapper classes are those who wrapped the primitives one for
sprcific purposes.

Wrapper classes are classes that are used to make primitive
data types into objects, and to make wrapped objects into
primitives because

As we know that vector in java can hold only object; but
can't directly store primitive data types, like int,float,
char, long, double. therefore we need to convert simple data
type to object. This can we done using wrapper classes.

A catch clause can catch any exception that is assigned to 
the throable type.It includes both run time errors and 
exceptions.

The java.awt.AWTEvent class is the highest-level class in
the AWT event-class hierarchy.

java.util.EventObject---java.awt.awtevent....

container

AWTEvent class is the top class of AWT event hierarchy and
all other event classes and awt event also extends from
EventObject class

component

Wrapper classes allow primitive data types to be accessed 
as object.
One assigned a value the value of wrapper calsses cann't be 
changed.
thay are used to convert value of one data type to another.

Wrapping is the process of converting primitive data type 
into objects,the Java API provide a set of classes that 
make the process easier ,such  classes are called Wrapper 
classes.The classes which helps for wrapping is called 
Wrapped classes.

wrapper class is nothing but converting primtivedatatype 
into objects

wrapper classes will allow us to make use of primitive
datatypes as objects

Wrapped classes are classes that allow primitive types to 
be accessed as objects.

Primitive types are not objects in Java
Many methods are available in the Java library that work 
only for objects
Wrapper classes are used to represent primitive data types 
as objects.
Boolean, Character, Byte, Short, Integer, Long, Float, and 
Double.
Object wrappers for the corresponding native data type.
Object Oriented implementation of the primitive data types

Functions which are called at runtime are called virtual 
functions.

In OOP, virtual methods are those methods which can be
overridden within an inheriting class by a function with the
same signature. This concept is a very important part of the
polymorphism portion of OOP. In JAVA by default all methods
are virtual.

there are two types of applets are there.
1.local applets:these applets are run within the browser.

2.remote applets:these appltes are run on the internet.

1.local applets:these applets are run within the browser.

2.remote applets:these appltes are run on the internet.

Remember "Every APPLET act as a Browser"
and File extension os applet is .HTML
as question held types of applet it is simple.
1.LOCAL APPLET
2.REMOTE APPLET 
Difference is that local applet operate in single machine 
browser which is not connected in network,while remote 
applet poerate over internet via network.

Standalone applications
Web applications
Mobile applications

standalone applications
webapplications
enterprise applications

1.Console Application
2.Windows Application/Standalone Application
3.Web Application
4.Mobile Application

1. Window application
2. Console Application
3. Web application
4. Web services
5. Window services

not supported,requires,required new,supports,mandatory,never

required
requiresnew
mandatory
supports
notsupported

using try--catch--finally
using throws

using try catch
using throws for delegation of exceptions
using throw to define an exception

we can handle exception by using
try
catch
finally
throw
throws.