void main() {
    int first = 3;
    int second = 8;

    int temp = first;   // keep the 3 before first changes
    first = second;
    second = temp;

    IO.println(first + " " + second);
}

// From Groundwork, chapter 2 (ch02-variables-and-types), box 3.
// This example is from Groundwork, licensed CC BY-NC-SA 4.0.
// Run with: java ch02_03.java