Added Elevator.java to java-evaluation folder

tasks/java-evaluation/Elevator.java

@@ -0,0 +1,88 @@
+import java.util.Scanner;
+
+//Elevator: Tracks and moves floors
+class Elevator {
+    private int floor;
+
+    //Constructor
+    Elevator(int initialFloor) {
+        floor = initialFloor;
+    }
+
+    //moveUp
+    int moveUp() {
+        floor += 1;
+        return floor;
+    }
+
+    //moveDown
+    int moveDown() {
+        floor -= 1;
+        return floor;
+    }
+
+    //getCurrentFloor
+    int getCurrentFloor() {
+        return floor;
+    }
+}
+
+//ElevatorController: Tells Elevator how to move, rejects invalid floors
+class ElevatorController {
+    Elevator currentFloor;
+    int minFloor;
+    int maxFloor;
+
+    ElevatorController(Elevator elevatorInstance, int min, int max) {
+        currentFloor = elevatorInstance;
+        System.out.println("Elevator instantiated at floor " + currentFloor.getCurrentFloor());
+        minFloor = min;
+        maxFloor = max;
+    }
+
+
+    void goToFloor(int targetFloor) {
+        if (targetFloor > maxFloor || targetFloor < minFloor) {
+            System.out.println("Floor " + targetFloor + " is not a valid floor.");
+        } else {
+            while (currentFloor.getCurrentFloor() != targetFloor) {
+                if (currentFloor.getCurrentFloor() < targetFloor) {
+                    currentFloor.moveUp();
+                    System.out.println("Moving up... Now at floor " + currentFloor.getCurrentFloor());
+
+                } else if (currentFloor.getCurrentFloor() > targetFloor) {
+                    currentFloor.moveDown();
+                    System.out.println("Moving down... Now at floor " + currentFloor.getCurrentFloor());
+                }
+            }
+            System.out.println("Arrived at floor " + currentFloor.getCurrentFloor());
+        }
+    }
+}
+
+
+//Main: Loops the program
+class Main {
+    public static void main(String[] args) {
+        Scanner userInput = new Scanner(System.in);
+
+        Elevator currentFloor = new Elevator(1);
+        ElevatorController controller = new ElevatorController(currentFloor, 1, 5);
+
+        while(true) {
+            System.out.println("Request Floor: ");
+            String stinky = userInput.next();
+            if (!stinky.equalsIgnoreCase("quit")) {
+                try {
+                    controller.goToFloor(Integer.parseInt(stinky));
+                }
+                catch (NumberFormatException e) {}
+            }
+            else {
+                break;
+            }
+        }
+    }
+}
+
+