adds Thief class

src/Thief.java

+import java.util.Random;
+
+public class Thief {
+    Land thiefLand;
+    Random rand = new Random();
+    private int firstx = rand.nextInt(thiefLand.getLength());
+    private int firsty = rand.nextInt(thiefLand.getLength());
+    private int x = firstx;
+    private int y = firsty;
+
+
+    public int getX(){
+        return x;
+
+    }
+    public int getY(){
+        return y;
+    }
+    public void setLand(Land myLand) {
+        thiefLand = myLand;
+    }
+}