GRADE 12 JAVA | Java Teacher

Gr 10,11 – Comparing devices

In the theory exam you must be able to compare hardware digital devices catagory-by-category; but what are these catagories? In the document below Computer A is an Apple Mac laptop, Computer B is a Windows based laptop and Computer C is an Android based tablet....

Gr 10,11 – Application Suites

In the theory section we have to know application software. Applications do something; they achieve a task on behalf of the user. A computer with system software (an operating system like Ms Windows) will run, but it will not be very useful. Application software makes...

Gr 12 – Unicode

Converting characters or Strings to their Unicode values in Java. Once this is done the Unicode values of the characters can be added, subtracted, multiplied or divided. This is useful when wanting to establish whether a String login is valid or not. See output below....

Gr 11 – Rounding off

Being able to round a real number (double number) in Java off to a certain number of decimal places will be required in both the grade 11 and 12 practical exams. NOTE: When rounding off using these String based methods the accuacy of the origial number does not...

Gr 12 – The Law

The South Africa SAGS (syllabus) for IT specifically mentions 4 pieces of legislation in the Social and Ethical Issues part of the syllabus. Here below is a overview of each taken from Google . . . The Protection from Harassment Act This provides a legal remedy for...

GR 11 12 – GUI design

In your practical Java coding projects attention must be given to GUI design. This is not only important for appearance but because a badly designed interface is prone to user errors. Appearance - Colour. Your GUIs should have a primary colour, a secondary colour and...

Gr 11 Elegant Code

Elegant Java code is a thing. Ask any straight-A coding student who has tried to help a non-performing class mate. "Bad" code is difficult to understand. By contrast elegant code is easy, quick and a breeze to troubleshoot. So what makes elegant code? It starts with...

Gr 12 – Theory revision 2

When you basically know your work, then it is time to move over to the summary theory cheat sheet followed by the category cheat sheet. Use the "summary cheat sheet version 19" 12 hours before the exam. Concentrate on the content and the definitions. Click here Use...

Gr 12 – Theory revision

Theory revision, overviews and cheatsheets for your IEB Theory tests and exams (2022). There is a lot here, notes that I have prepared and notes that matric students have prepared in previous years - some may be more useful than others. Choose that ones that will help...

Installing Java NetBeans jGRASP

Java is maintained and developed by Oracle NOTE: Do not install onto a laptop that is FULL of movies and games. You hard drive must not be more than 70% full. Delete . . . Apple is not recommended because the textbooks, tutorials and notes are all based on a Windows...