@@ -0,0 +1,257 @@
+public class JumpFloor %7B%0A    public int jumpFloor(int target) %7B%0A%09%09if(target%3C1)%0A            return 0;%0A        if(target == 1)%0A            return 1;%0A        if(target == 2)%0A            return 2;%0A        return jumpFloor(target-1)+jumpFloor(target-2);%0A    %7D%0A%7D%0A

Create JumpFloor.java