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Java Introduction

April 28, 2017
Published By : Pratik Kataria
Categorised in: Java Core

How Java was born?

• Java started in 1991 – when Sun Microsystems began ‘Green Project’
• Primary objective: A new portable language – to run on multiple operating systems
• Original name: Oak – derived from large oak tree that stood outside the developer’s offices
• Renamed to: Java – probably because of the amount of coffee developers were drinking
• Public Access: 1995
• Original motivation: Write Once, Run Everywhere – compile once and execute on any operating system

Timeline

• 1995 – First Release
• 1996 – JDK 1.0
• 1997 – JDK 1.1 (Inner classes, JavaBeans, JDBC, RMI, Reflections)
• 1998 – J2SE 1.2
  • Swing graphical API – for building desktop applications
  • Collections framework – for managing multiple data elements
  • JIT Compiler (Just In Time Compiler)
  • Java Plug-In – for standardizing Java version across web
• 2000 – J2SE 1.3
  • HotSpot JVM
  • Java Sound API
  • Debugging Architecture
  • JNDI Interface
• 2002 – J2SE 1.4
  • Regular expressions
  • IPv6 network communications
  • Logging API
  • XML and XSLT
  • Security and cryptography
  • Java Web Start
• 2004 – J2SE 5.0 (1.5) — Major milestone/change
  • Generics – allowed to data type objects
  • Metadata
  • Enmerations
  • Variable arguements
  • For-each enhancement
    (From J2SE 5.0 onwards Java versions would be called Java v5, v6, etc. However, internally the version is still incremented by 0.1. Meaning, Java v8 implies J2SE 1.8)
• 2006 – Java SE 6
  • Performance JDBC 4.0
  • GUI improvements
    (After this mostly maintenance releases were performed)

• 2010 – Oracle bought Sun microsystems
  • Pace of change increased
  • JCP community managed by Oracle
• 2011 – Java SE 7 –Significant syntax changes
  • Strings in switch
  • Try-catch improvements
  • Simplified variable arguements
  • Underscores in numeric literals
• 2014 – Java SE 8
  • Lambda expressions
  • Method references
  • Collections with streams
  • New data/time API
  • Nashorn JavaScript engine
• 2017 (July ?) – Java SE 9
  • Modularization of JDK
  • Java Shell
  • Ahead of Time Compilation
  • XML Catalogs

Pratik Kataria

Pratik Kataria is currently learning Springboot and Hibernate.
Technologies known and worked on: C/C++, Java, Python, JavaScript, HTML, CSS, WordPress, Angular, Ionic, MongoDB, SQL and Android.
Softwares known and worked on: Adobe Photoshop, Adobe Illustrator and Adobe After Effects.

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