Java History and Features

A Short History

The Java project began in 1991 under the name Oak. It was originally created for consumer electronic devices like set-top boxes. When the internet became popular, the team realised a platform-neutral language was ideal for web programming, and Java was officially released in 1995. The name was changed to Java, inspired by coffee.

Major milestones since then:

• 1995: Java 1.0 release.
• 1998: Java 2 with Swing and the Collections Framework.
• 2004: Java 5 added generics, enums, autoboxing and annotations.
• 2014: Java 8 added lambda expressions and the Stream API.
• 2017 onward: a new six-month release cadence delivers features faster, with long-term support (LTS) versions such as 11, 17 and 21.

Signature Features

• Platform independence: bytecode executes on any JVM.
• Object oriented: classes, inheritance, encapsulation and polymorphism.
• Automatic memory management: no manual allocation or freeing.
• Exception handling: runtime problems are handled gracefully instead of crashing.
• Multithreading: first-class support for concurrent programs.
• Security: bytecode verification, no direct pointer access.
• Robust typing: strong static typing catches mistakes early at compile time.

Key Points

• Java was created for portable consumer electronics, then became the language of the internet.
• Java 8 is the version that reshaped the language with lambdas and streams.
• LTS releases (8, 11, 17, 21) are the safe choices for production.