Java Classroom

Bringing the entirety in learning, using, applying & innovating in a strong brew

Domain

Remarks

What is Java?

  • A new programming language by Sun in late 1995

What are its strengths?

  • It is a robust, object-oriented language useful for applications, web-based programs & communications
  • Its rather unique Java virtual machine (JVM) compiles (converts) the Java source code (*.java) into Java bytecode (*.class), which is conveniently interpreted into the native machine code & executed (*.exe) on all Java platforms
  • Literally, "write once, run always"
  • Entirely born & grown with the Web

What are its weaknesses?

  • Its execution speed is much slower than native codes of C++, Fortran, etc. in return for its versatility & flexibility
  • Java VM is an interpreter, thus executing single code lines, unlike compilers
  • Graphical abilities are better than other numerical languages, but inadequate in comparison to true graphical languages

What can Java be used for?

  • Any language must be used to exploit its strengths & avoid its weaknesses
  • Java has become a programming phenomenon for unprecedented acceptance, growth & popularity due its adaptability & applications to Web, mobile and educational technologies
  • Its uses include enterprise, education, training, networking, communications, wireless technology, etc. New uses are being explored all the time
  • Web functionality, applications and versatility are being added at warp speed

Is Java difficult to learn?

  • Ask yourself why and what it is that you want to learn Java – the difficulty of learning = f(user context, language environment, available help)
  • I feel it’s best that you have a need or use for Java in order to learn it purposefully & thoroughly – no point wasting your efforts to prove programming prowess
  • Having a favourable user context is insufficient, Java needs to be learnt in a conducive environment, providing support when necessary
  • Due to its growth on the Internet, online help & resources are readily available, not to mention your buddies
  • The Java language basics & features can be considered medium; See Java as a modular, networking framework & you have no problems

Where can I learn Java?