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Chapter 1

Chapter 1. Introduction to JAVA. Focus on and Learning outcome. This lesson focus on: Birth of JAVA Program Feature of JAVA Program Type of IDE for develop JAVA Program Syntax to write JAVA Code Learning outcome: Know how to write java code in NetBean IDE. Content. History of Java

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Chapter 1

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  1. Chapter 1

    Introduction to JAVA
  2. Focus on and Learning outcome This lesson focus on: Birth of JAVA Program Feature of JAVA Program Type of IDE for develop JAVA Program Syntax to write JAVA Code Learning outcome: Know how to write java code in NetBean IDE.
  3. Content History of Java Java Version Feature of Java Java 2 software Development kit(J2SDK) Java Virtual Machine How to write java source code
  4. History of Java Java was developed in 1991 by James Gosling at Sun Microsystems to be used as a solution for household appliances such as remote control, microwave oven,… But it is not interesting to market. Java is C/C++ based language. When the World Wide Web become popular in 1995, Java come to life again. Java is now consider as native language of the internet. Java is a full Object Oriented Programming
  5. Version of JAVA 1996 1997 1998 Version 1.0(First JDK) Version 1.1(JDK) Version 1.2(J2SE|ME) use private and protected together to create another form of protection An extensive retooling of the AWT event model, inner classes , JavaBeans, JDBC,RMI, reflection -strictfp keyword -Swing as Core Class -JVM was equipped with a JIT compiler,Java Plug-in, Java IDL(CORBA ), Collections framework
  6. Version of JAVA 2000 2002 2004 Version 1.3(J2SE) Version 1.4(J2SE) Version 5(J2SE) HotSpot JVM included RMI support optional compatibility with CORBA JavaSound,JNDI, JPDA, Synthetic proxy classes exception chaining, IPv6) support,regular expressions, integrated XML parser and XSLT processor (JAXP), integrated security and cryptography extensions,Java Web Start Autoboxing/unboxing,Enumerations,Varargs, Enhanced for each loop,Metadata
  7. Version of JAVA 2006 2011 2013 Version 6(SE) Version 7(SE) Version 8(SE) Improved Web Service support through JAX-WS, JDBC 4.0 support, Upgrade of JAXB to version 2.0, Many GUI improvements The ability to cast from an Object type to a primitive type directly, Enhanced library-level support for new network protocols,Upstream updates to XML and Unicode Expected
  8. Feature of Java Simple: not support pointer, operator overloading Object-Oriented: use object when run time Statically type: must declare before use and object Compiled: must compile before run source code Architecture neutral and portable: platform independent Multithreads: multitasking supported. Garbage collected: auto release object from memory Robust: preventing system crash when error Secure: strict access area of system Extensible: can access native method of C++
  9. Java 2 software Development kit Java API for develop java program has: JDK7 IDE helps to develop a java program: Borland JBuilder NetBean JCreater Visual Café TextPad
  10. Java Virtual Machine
  11. How to write java source code syntax: Package Name; Import PackageName; public class ClassName { public static voidmain(String[ ] arg) { Block statement } }
  12. Example File Name:Test.java public class Test { public static void main(String[ ] arg) { System.out.println(“Hello Java”); } }
  13. Install and use IDE Install NetBean Download JDK and NetBean from web site http://www.oracle.com/technetwork/java/javase/downloads/index.html Install JDK Adding JDK Path to environment variable(Optional) Install NetBean NetBean Management Tools: Create project Create Package Create Class Compile and Run Java source code
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