[WhoopA]

?: is a C construct similar to the if statement. Graal doesn't support it as far as I know. Syntax is thus:

(condition) ? (true-statement) : (false-statement)

The ?: construct is more compact than the if statements. That code snippet you have there? I'll expand it into if's.

if (this.size == 1) {
this.speed = 1;
} else if (this.size == 2) {
this.speed = 1.2;
} else {
this.speed = 1.5;
}