1. Sadegh Aliakbary Sharif University of Technology Spring 2011

2. Agenda Introduction to Course Java History Java Characteristics Syllabus References Evaluation Policy Spring 2011Sharif University of Technology2

3. This Course Covers: Java programming language Object Oriented Concepts Some Programming Skills Spring 2011Sharif University of Technology3

4. Java History Java was created in 1991 by James Gosling in Sun Microsystems. Initially called Oak in honor of the tree outside Gosling's window Its name was changed to Java because there was already a language called Oak. Sun Microsystems released the first public implementation as Java 1.0 in 1995 Java syntax is similar to C and C++. Spring 2011Sharif University of Technology4

5. Java Motivation The need for platform independent language To be embedded in various consumer electronic products like toasters and refrigerators Platform independent?! Hardware Operating System Spring 2011Sharif University of Technology5

6. Java Motivation (2) At the same time, the World Wide Web and the Internet were gaining popularity. Java could be used for internet programming. Why? Platform independence Creation of Applets Spring 2011Sharif University of Technology6

7. The Java technology is: A programming language Java can create all kinds of applications A development environment A compiler (javac) An interpreter (java) A documentation generator (javadoc) … Compare it to C++ Spring 2011Sharif University of Technology7

8. High-Level Languages Spring 2011Sharif University of Technology8

9. Java Virtual Machine Spring 2011Sharif University of Technology9

10. Compile and Execution Stages Compare to C++ and Assembly.NET Framework Spring 2011Sharif University of Technology10

11. Java is Popular Some reports on programming languages popularity According to Job advertisements Book sales Finding code on the web … Spring 2011Sharif University of Technology11

12. Spring 2011Sharif University of Technology12 http://www.langpop.com updated in 2010

13. Spring 2011Sharif University of Technology13 http://www.tiobe.com/index.php/content/paperinfo/tpci/index.html

14. Characteristics of Java Java is simple Java is object-oriented Java is architecture-neutral Java is portable Java is interpreted Java is multithreaded Java is secure Java is robust Spring 2011Sharif University of Technology14

15. Further Reading Read Java page on Wikipedia http://en.wikipedia.org/wiki/Java_(programming_language) Google this terms and phrases: Spring 2011Sharif University of Technology15 Java Java Mobile JVM Byte code Java Sun Java and C++ Java and C#

16. Exercises Download and install JDK Write a program that prints your name on the console Compile and run the program Spring 2011Sharif University of Technology16

17. Topics Introduction to java language Java syntax, operators, conditions, loops, … Strings Arrays Object Oriented Programming Inheritance Polymorphism Collections Generics Exception Handling Files and I/O Threads Reflection Test Refactoring GUI Networking Spring 2011Sharif University of Technology17

18. References Thinking in Java Bruce Eckel Fourth Edition Java How to Program Deitel & Deitel 6 th + Edition Spring 2011Sharif University of Technology18

19. Evaluation Policy Spring 2011Sharif University of Technology19

20. Quiz! Write a function that takes an array of integers as a parameter and returns the average Use this function in a program Take 10 integers from console Print the average on the console Spring 2011Sharif University of Technology20

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