Chapter 2 Java in 30 minutes ½ hour

Teaching a computer language like a logical system is possible. Rationale Teaching a computer language like a logical system is possible. But not necessarily helpful. Everyone has studied a computer language so I can make some assumptions. Rapid introduction of the important syntax. (Feel free to interrupt with questions) Then I go over things in more detail, but I can refer to things only covered briefly and you will have least have seen them. Will assume you learn the syntax by practising. Course more about language idioms You understand what computer languages are about ½ hour

Primitives ½ hour

Variables ½ hour

Arithmetic ½ hour

Mathematical Expressions Provided by library functions Math. Maths Mathematical Expressions Provided by library functions Math. To look at the full documentation https://docs.oracle.com/javase/8/ More about libraries later tutorials documentation ½ hour

Documentation ½ hour

Mathematical Expressions Provided by library functions Math. Maths Mathematical Expressions Provided by library functions Math. ½ hour

Choice ½ hour

Choices ½ hour

Again ½ hour

. and again ½ hour Iteration – doing something more than once For loops often step through arrays OR “for values in measurement” Deciding not to do it continue; skips the rest of the loop and goes to the next value Finishing early break; ends the loop double[] measurements; double sum = 0.0; double average; for (int pnt=0; pnt< measurements.length;pnt++){ sum += measurements[pnt]; } average = sum/(double)measurements.length; for (double values: measurements) { sum += measurements[pnt]; } Good idiom – clear what you are doing ½ hour

Class.. ½ hour

Saying Hi ½ hour

In a nutshell ½ hour

Alone ½ hour

Lets talk ½ hour

½ hour

The sins of the fathers .. ½ hour

….. Now for the details ………………….. ½ hour