Java Versions

Java VersionsI remember when I was attending Java training in my organization our trainer told us the Sun Microsystems (now Oracle) launched a new version of Java Java SE 7 and its code name is Dolphin .At that time I was very surprise because I was working in Java from last 3 year and I did not know this thing that every version of Java has its own significance and its own code name too.

After that I was curious to all the "code name" so I founded it out. Here I am sharing this information with you guys . It will be a good learning experience.

I have summarized below important new features added in each major Java release till now. I target to highlight important features added in respective releases. Apart from below list of features, every release has enhancements too.

Java Version SE 7
code named Dolphin and released on July 28, 2011.

New features in Java SE 7

  • Strings in switch Statement
  • Type Inference for Generic Instance Creation
  • Multiple Exception Handling
  • Support for Dynamic Languages
  • Try with Resources
  • Java IO Package
  • Binary Literals, underscore in literals
  • Diamond Syntax
  • Automatic null Handling    

Java Version SE 6
Code named Mustang and released on December 11, 2006.

New features in Java SE 6

  • Scripting Language Support
  • JDBC 4.0 API
  • Java Compiler API
  • Pluggable Annotations
  • Native PKI, Java GSS, Kerberos and LDAP support.
  • Integrated Web Services.
  • Lot more enhancements.

J2SE Version 5.0
Code named Tiger and released on September 30, 2004.

New features in J2SE 5.0

  • Generics
  • Enhanced for Loop
  • Autoboxing/Unboxing
  • Typesafe Enums
  • Varargs
  • Static Import
  • Metadata (Annotations)
  • Instrumentation

J2SE Version 1.4
Code named Merlin and released on February 6, 2002 (first release under JCP).

New features in J2SE 1.4

  • XML Processing
  • Java Print Service
  • Logging API
  • Java Web Start
  • JDBC 3.0 API
  • Assertions
  • Preferences API
  • Chained Exception
  • IPv6 Support
  • Regular Expressions
  • Image I/O API

J2SE Version 1.3
Code named Kestrel and released on May 8, 2000.

New features in J2SE 1.3

  • Java Sound
  • Jar Indexing
  • A huge list of enhancements in almost all the Java area.

J2SE Version 1.2
Code named Playground and released on December 8, 1998.

New features in J2SE 1.2

  • Collections framework.
  • Java String memory map for constants.
  • Just In Time (JIT) compiler.
  • Jar Signer for signing Java ARchive (JAR) files.
  • Policy Tool for granting access to system resources.
  • Java Foundation Classes (JFC) which consists of Swing 1.0, Drag and Drop, and Java 2D class libraries.
  • Java Plug-in
  • Scrollable result sets, BLOB, CLOB, batch update, user-defined types in JDBC.
  • Audio support in Applets.

JDK Version 1.1
Released on February 19, 1997
New features in JDK 1.1

  • JDBC (Java Database Connectivity)
  • Inner Classes
  • Java Beans
  • RMI (Remote Method Invocation)
  • Reflection (introspection only)

JDK Version 1.0

Code named Oak and released on January 23, 1996.


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