CoyoteAndRoadrunner.java

class Main {

  public static void test(int roadRunner, int coyote, int edge) {
    System.out.println("Roadrunner Position: " + roadRunner + "; Coyote Position: " + coyote + "; edge: " + edge + ";");

    System.out.println();

    if (!(roadRunner < edge)) {
      System.out.println("Roadrunner did not run.");
    }

    //while (!edge)
    while (roadRunner < edge) {
      //run();
      roadRunner++;
      System.out.println("Roadrunner ran. Position: " + roadRunner);
      if (roadRunner > edge) {
        System.out.println("Off the edge!");
      } else {
        System.out.println("Not off the edge.");
      }
    }

    System.out.println();
    
    //do while (!edge)
    do {
      //run();
      coyote++;
      System.out.println("Coyote ran. Position: " + coyote);
      if (coyote > edge) {
        System.out.println("Off the edge!");
      } else {
        System.out.println("Not off the edge.");
      }
    } while (coyote < edge);
  }

  public static void main(String[] args) {
    System.out.println("Neither Coyote nor roadrunner are on the edge:");
    test(0, 0, 1);
    System.out.println("---------------------------");
    System.out.println("Coyote and roadrunner are both on the edge:");
    test(1, 1, 1);
  }
}