A brief introduction to the Java programming language.

1. Intro to

2. History

3. History
Developed by James Gosling &
team at Sun Microsystems

4. History
Developed by James Gosling &
team at Sun Microsystems
First version released 1995

5. History
Developed by James Gosling &
team at Sun Microsystems
First version released 1995
Built upon syntax of C and C++

6. History
Developed by James Gosling &
team at Sun Microsystems
First version released 1995
Built upon syntax of C and C++
Designed to emphasize object-
oriented programming while
simplifying low-level processes

7. History
Developed by James Gosling &
team at Sun Microsystems
First version released 1995
Built upon syntax of C and C++
Designed to emphasize object-
oriented programming while
simplifying low-level processes

8. Java Sightings

9. Java Sightings
Desktop apps

10. Java Sightings
Desktop apps
Web apps (applets & backends)

11. Java Sightings
Desktop apps
Web apps (applets & backends)
Mobile apps

12. Java Sightings
Desktop apps
Web apps (applets & backends)
Mobile apps

13. Java Sightings
Desktop apps
Web apps (applets & backends)
Mobile apps

14. Java Sightings
Desktop apps
Web apps (applets & backends)
Mobile apps

15. Pros & Cons

16. Pros & Cons
✦ Portability

17. Pros & Cons
✦ Portability
✦ Multithreading

18. Pros & Cons
✦ Portability
✦ Multithreading
✦ Small footprint
(~40KB JAR file)

19. Pros & Cons
✦ Portability
✦ Multithreading
✦ Small footprint
(~40KB JAR file)
✦ Automatic garbage
collection

20. Pros & Cons
✦ Portability ✦ Language limitations
✦ Multithreading
✦ Small footprint
(~40KB JAR file)
✦ Automatic garbage
collection

21. Pros & Cons
✦ Portability ✦ Language limitations
✦ Multithreading ✦ Slower execution
✦ Small footprint
(~40KB JAR file)
✦ Automatic garbage
collection

22. Pros & Cons
✦ Portability ✦ Language limitations
✦ Multithreading ✦ Slower execution
✦ Small footprint ✦ Uses more memory
(~40KB JAR file)
✦ Automatic garbage
collection

23. Development

24. Development

25. Development

26. Development

27. Development

28. Development

29. Development
Write source
code

30. Development
Write source Compile to bytecode &
code execute with JVM

31. Development
Write source Compile to bytecode &
Debug?
code execute with JVM

32. Starter Terms

33. Starter Terms
source code The code that you type
bytecode The code created by the Java compiler and
executed by the Java Virtual Machine.
variable Named memory location needed to store
information for later use
method Named sequence of code (synonymous with
function)
return type/value When a method returns a value, the type refers to
the type of information returned
(e.g. int, String,
etc.), and the value refers to the actual piece of
information returned (e.g. -13, “Ramey”, etc.)
call statement Code required to execute a method