JavaFX Primer - JavaFX: Developing Rich Internet Applications - page 58

var taxBracket = if (income < 8025.0) 0.10
else if (income < 32550.0)0.15
else if (income < 78850.0) 0.25
else if (income < 164550.0) 0.28
else 0.33;

Looping Expressions
For
for loops are used with sequences and allow you to iterate over the members of
a sequence.

var daysOfWeek : String[] =
[ "Sunday", "Monday", "Tuesday" ];
for(day in daysOfWeek) {
println("{indexof day}). {day}");
}

To be similar with traditional for loops that iterate over a count, use an integer
sequence range defined within square brackets.

for( i in [0..100]} {

The for expression can also return a new sequence. For each iteration, if the
expression block executed evaluates to an Object , that Object is inserted into a
new sequence returned by the for expression. For example, in the following for
expression, a new Text node is created with each iteration of the day of the
week. The overall for expression returns a new sequence containing Text graph-
ical elements, one for each day of the week.

var textNodes: Text[] = for( day in daysOfWeek) {
Text {content: day };
}

Another feature of the for expression is that it can do nested loops. Listing 3.8
shows an example of using nested loops.

Listing 3.8 Nested For Loop

class Course {
var title: String;
var students: String[];
}
var courses = [