Saturday 24 November 2012

JAVA PACKEGES

A system is a selection of sessions consumer interface and sub-packages. A sub-package in changes separated into sessions connections sub-sub-packages, etc.
Learning about system is brought in for each and every JAVA system and whose name is java.lang.*.
          Whenever we create any java system it may contain many number of customer described sessions and customer described connections JVM will believe its own system called NONAME system.

          In java we have two kinds of offers they are predetermined or built-in or primary offers and customer or additional or customized described offers.

PREDEFINED PACKAGES:
    Defined offers are those which are growth by SUN small systems and provided as a aspect of JDK (Java Development Kit)  to simply the task of java developer.

NOTE:
Core offers of java begins with java (For example: java.lang.*) and Innovative offers of java begins with javax. (For example: jvax.sql.*)

TYPES of predetermined packages:
     As a aspect of J2SE we have nice predetermined offers which are given in the following table:

PACKAGE NAME AND PACKAGE DESCRIPTION:
JAVA.LANG.*: This system is used for accomplishing the language features  such as meeting of details from sequence to essential details showing the result on to the system acquiring the rubbish enthusiast  This is the system which is by standard brought in for each and every java system.

JAVA.IO.*: This system is used for creating data file passing program such as starting the data file in read or write method reading or writing the details etc.

JAVA.AWT.*(ABSTRACT WINDOWING TOOLKIT):
      This system is used for creating GUI (Graphic unit interface) elements  such as control buttons, examined, search box etc.

JAVA.AWT.EVENT:
   Occasion is the sub offers of awt offers. This system is used for providing the performance to GUI elements such as when key is examined or when check box is examined when search box is modified  either top to bottom or flat in a trench .

JAVA.APPLET.*:
    This system is used for developing surfing around focused programs .In other words this system is used for creating allocated system.

JAVA.NET.*:
  This system is used for creating customer hosting server programs.

JAVA.UTIL.*:
   This system is used for creating quality or efficient programs in java or J2EE.This system contains various sessions and connections which enhances the performance of J2ME program. This system is also known as selection structure (collection structure is the standardize procedure of variety of similar or unique type of item into single item is known as selection object)

JAVA.TEXT.*:
   This system is used for style  date and time on day to day business functions.

JAVA.LANG.REFLECT.*:
       Indicate is the sub offers of lang system. This system is usually used to study playback details about the category or customer interface about the category or customer interface. Runtime details symbolizes details member of the category or customer interface.

JAVA.SQL.*:
 This system is used for finding the details from database and doing various functions on database.

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