If a while loop will never end, we call that an endless loop¹.

This can happen if the condition is a constant like while (true)

~void main() {
while (true) {
    IO.println("This is the song that never ends");
}
~}

Or if the variables tested in the condition are not updated inside of the loop.

~void main() {
// x is never changed
int x = 0;
while (x != 1) {
    IO.println("It goes on and on my friends");
}
~}

Many games should never really "finish" so at the very start of that sort of program it is not uncommon to see a while (true).