Control flow

if

if (coins > 50) {
    post("Enough balance!");
} else if (coins == 0) {
    warn("No coins!");
} else {
    report("Balance sync error.");
}

else if emits elseif.

while and for

while (true) {
    post("tick");
}

for (int i = 0; i < 10; i++) {
    post("Count: " .: i);
}

for (Player player in players.GetPlayers()) {
    post("Player connected: " .: player.Name);
}

C-for counts. Range-for uses in (or :) to name the collection.

switch

Evaluates the discriminant once. Stacked cases share a body. break leaves the switch. No C fall-through.

switch (action) {
case "buy":
case "purchase":
    Grant(player);
    break;
default:
    warn("unknown");
    break;
}

Not in the language

continue, ternary ? :, do/while, goto, try/catch.

guard and match have their own lesson: Guard and match.

Next: Collections.