Question

Please write a preface for my school project of computer. Whole project is based on JAVA programming. This project consists of different JAVA programs given by teacher. Please any one help

Answer 1

PREFACE ON JAVA :-

● DEFINITION :
Java is an Object Oriented Programming language developed primarily by James Gosling and his colleagues at Sun Micro Systems. The language was initially called Oak.

● BASIC FEATURES OF JAVA :
1) Java is an Object Oriented Programming language.
2) Java Programs are both compiled and interpreted.
3) It can access data from a local system as well as from net.
4) Java is a case sensitive language. The upper case and lower case letters are distinguished by the language.
5) Java is multithreaded.

● JAVA COMPILER AND INTERPRETER :
Java compiler converts source code to byte code whereas java interpreter converts byte code into machine code. Java interpreter is still referred as the Java Virtual Machine (JVM).

● BYTE CODE DEFINITION :
The byte code is a common binary form of the program and works irrespective of the machine on which it is to be executed.

● SOME OF THE PACKAGES OF JAVA DEVELOPMENT KIT (JDK) :

1) java.lang (default package)
2) java.io
3) java.applet
4) java.net
5) java.awt
6) java.txt
7) java.math

● TYPES OF JAVA PROGRAM :
1) Stand alone or application program
2) Applet program