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JAVA

JAVA . Ekapap Julnonyang 47541610. When it was implemented?. Developed by Sun Microsystems. The first public implementation was Java 1.0 in 1995 The language was first create by James Gosling in 1991 ,the name of the Java in the past was “Oak”. The Purposes of Java.

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JAVA

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  1. JAVA Ekapap Julnonyang 47541610

  2. When it was implemented? • Developed by Sun Microsystems. • The first public implementation was Java 1.0 in 1995 • The language was first create by James Goslingin 1991 ,the name of the Java in the past was “Oak”

  3. The Purposes of Java • Operating system or Platform independent • Object-Oriented Programming • Support Network programming • Easy to code

  4. What kind of problem domain was it intended for? • Machine independence • The Write-Once-Run-Anywhere ideal has not been achieved (tuning for different platforms usually required), but closer than with other languages. • Several dangerous features of C & C++ eliminated • Automatic Memory Management

  5. Who were the envisioned users? • All programmer ,who want theirs program to be able to run on every platform

  6. Who designed the language? • The Java language was created by James Gosling in June 1991 for use in a set top box project. • The first public implementation was Java 1.0 in 1995 by Sun Microsystem.

  7. What are some main features or distinctive features of the language? • Platform Independence • Object Oriented • Security • Dynamic Binding • Good Performance • Threading • Built-in Networking

  8. What contribution(s) did the language make to the field of computer languages? • Virtual Machine • Automatic memory management • memory management handled by JVM. • Compiler/Interpreter Combo • Code is compiled to bytecodes that are interpreted by a Java virtual machines (JVM) . • This provides portability to any machine for which a virtual machine has been written. • The two steps of compilation and interpretation allow for extensive code checking and improved security. • Dynamic Binding • Garbage collector

  9. How widely is the language used today? • 2006 Java technology celebrates its 10th birthday • Approximately 4.5 million developers use Java technology • Over 2.5 billion Java technology-enabled devices are available • Java.com bundles the Google Toolbar with the JRE download

  10. Example Code • Numerical computations

  11. Example Code • Input and output different kinds of data, such as integers, floating pt, and strings.

  12. Example code • Invoke a function or procedure

  13. References • http://en.wikipedia.org/wiki/Java_(programming_language) • http://www.particle.kth.se/~lindsey/JavaCourse/Book/Part1/Java/Chapter01/features.html • http://www.java.com/en/javahistory/timeline.jsp • http://java.sun.com/features/1998/05/birthday.html

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