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Appeared in 1995 Java programming language
History q James Gosling, Mike Sheridan, and Patrick Naught on initiated the Java language project in June 1991. Java was originally designed for interactive television, but it was too advanced for the digital cable television industry at the time
History q Sun Microsystems released the first public implementation as Java 1. 0 in 1995. q It promised "Write Once, Run Anywhere" (WORA), providing no-cost run-times on popular platforms. Fairly secure and featuring configurable security, it allowed network- and file-access restrictions. q Major web browsers soon incorporated the ability to run Java applets within web pages, and Java quickly became popular.
James Gosling, the creator of Java Duke, the Java mascot
Major release versions of Java, along with their release dates: • • • JDK 1. 0 (January 21, 1996) JDK 1. 1 (February 19, 1997) J 2 SE 1. 2 (December 8, 1998) J 2 SE 1. 3 (May 8, 2000) J 2 SE 1. 4 (February 6, 2002) J 2 SE 5. 0 (September 30, 2004) Java SE 6 (December 11, 2006) Java SE 7 (July 28, 2011) Java SE 8 (March 18, 2014)
Hello world The traditional Hello world program can be written in Java as: class Hello. World. App { public static void main(String[] args) { System. out. println("Hello World!"); // Display the string. } }
Use by external companies v Google and Android, have chosen to use Java as a key pillar in the creation of the Android operating system, an open-source smartphone operating system. v Although the Android operating system, built on the Linux kernel, was written largely in C, the Android SDK uses the Java language as the basis for Android applications
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